MAX CLR-HP A/BCLEAR LIQUID RESIN-HIGH PERFORMANCEEpoxy Resin System
You are bidding on a 192-ounce kit
(1.5 GALLONS COMBINED VOLUME)
1 Gallon of MAX CLR-HP PART A
AND
1/2-Gallon MAX CLR-HP PART B
THE MOST CRYSTAL CLEAR AND COLOR STABLE EPOXY SYSTEM
FORMULATED WITH UV STABILIZERS AND ANTI-OXIDANT FOR IMPROVED UV STABILITY
None Blushing Formulation
The Low Viscosity Formulation For Fast Fiber Wet-Out and Flow
100% Reactive, No Excessive Plasticizer Fillers
Excellent Adhesion To A Wide Range of Substrates
Balanced Working Time For Dry and Wet Lay-up
Excellent Gloss and Color Retention, Non-Blushing
Impregnating Resin For Fiberglass Carbon Fiber, Aramid Fibers (Kevlar, Nomex)
Excellent Impact Resistance
Excellent Balance of Strength and Durability
Excellent Water/Salt Water Resistant for Marine/Aero Applications
Excellent Chemical and Solvent Resistance
Low Shrinkage, Wide range of service temperature
Tested For Aerospace Application Under NASA Low Out Gassing Specifications of less than 1% CVCM
Can be used as an adhesive or coating for Direct and indirect Food Contact under the FDA 21 CFR 175.105
1 GALLON = 231 CUBIC INCHES
1 GALLON OF RESIN CAN COVERS 1608 SQUARE FEET
1 MIL OR 0.001 INCH CURED COATING THICKNESS
1 GALLON OF RESIN IS 128 OUNCES
1 GALLON OF MIXED EPOXY RESIN IS 9.23 POUNDS
1 GALLON OF RESIN IS 3.7854 LITERS
MAX CLR-HP A/B is an excellent resin system application where color stability and water clarity is crucial.
Crystal Clear Transparent Color
Excellent Color Stability
Ease of use 2:1 Mix Ratio
Higher Hardness And Durability
None Blushing Formulation
Faster Development Of Mechanical Properties
Chemical Resistant Performance
High Surface Hardness
PRODUCT DESCRIPTION
MAX CLR-HP A/B is a two-part epoxy based system specially formulated as High Performance version of the MAX CLR resin system.
It offers higher mechanical performance while maintaining crystal clarity, gloss and other aesthetic qualities.
MAX CLR-HP provides excellent performance to a wider service temperature range, especially its retention of its mechanical hardness at elevated temperatures as well its durability when exposed to below freezing temperatures. Its none blushing performance, high gloss finish, excellent transparent clarity, color stability and ease of use make MAX CLR-HP an excellent choice as an impregnating resin for composite fabrics, protective coatings, casting resin and general fabricating applications.
MAX CLR-HP also offers high chemical resistance, structural adhesion and overall durability suitable for many protective coatings applications.
MAX CLR-HP A/B performs well at room temperature use and can withstand cyclic exposure to temperatures form -40°C to 112°C with minimal loss of mechanical performance.
Upon Cure, MAX CLR-HP A/B resists extreme and repeated thermal shocks making it well suited for bonding substrates with dissimilar expansion coefficients.
MAX CLR-HP A/B can be as as an adhesive for bonding at variety of substrates such as composite materials, concrete and ceramic products, plastics, wood, glass, steel, aluminum and most soft metals.
MAX CLR-HP A/B is 100% solids and does not contain Ozone Depleting Chemicals (ODC), non-reactive plasticizers or solvent fillers.
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COLD TEMPERATURE NOTICE
A POLYMER RESIN’S PHYSICAL PROPERTY SUCH AS ITS VISCOSITY AND CURE RATE ARE HIGHLY AFFECTED AND INFLUENCED BY TEMPERATURE.
DURING THE COLDER SEASONS THE RESIN AND CURING AGENT SHOULD BE WARMED TO AT LEAST 75°F to 80°F (21°C to 27°C) PRIOR TO USE TO REDUCE ITS VICOSITY TO REDUCE AIR BUBBLE ENTRAPMENT AND MAINTAIN ITS WORKING TIME AND PROPER CURE.
THE HIGH PURITY EPOXY COMPONENT AND THE ABSENCE OF ANY ACCELERATORS IN ITS FORMULATION ARE SOME OF THE MANY KEY FACTORS THAT CONTROLS ITS COLOR STABILITY.
THE COLD TEMPERATURE WILL ALSO MAKE THE RESIN MUCH THICKER THAN THE STATED VISCOSITY AND WORKING TIME VALUES STATED ON THE PHYSICAL TABLES CHART. THIS WILL REDUCE THE POLYMER’S REACTION RATE AND EXTEND ITS CURE TIME.
THIS CAN RECTIFIED BY USING THE MIXED RESIN IN A WARM ROOM AT TEMPERATURES NO LOWER THAN 70°F .
COMMON AND NOTCIABLE THE EFFECTS OF COLD TEMPERATURE EXPOSURE
HIGHER OR THICKER VISCOSITY
LESS ACCURACY IN VOLUMETRIC MEASUREMENT DUE TO ITS THICKER CONSISTENCY
CRYSTALAZIED OR SOLIDIFIED RESIN COMPONENT THAT WILL APPEAR AS A WHITE WAX-LIKE CONSISTENCY
MORE BUBBLE ENTRAPMENT DURING MIXING
SLOWER REACTIVITY
LONGER CURE TIMES
LOWER CURED PERFORMANCE DUE TO NONE FULL CURE POLYMERIZATION
CAUTION
ALTHOUGH THE POLYMERZATION HAS SLOWED DUE TO THE COLDER AMBIENT CONDITIONS
MIXING THE RESIN AND CURING AGENT ABOVE 80°F CAN STIL CAUSE RAPID POLYMERIZATION
AND HIGH EXOTHERMIC HEAT BUILD-UP CAN OCCUR THAT CAN
EXCEED 300°F EXOTHERMIC HEAT WHEN KEPT IN MASS.
DURING SHIPPMENT,THE PACKAGE MAY AND CAN BE EXPOSED TO
TEMPERATURES BELOW 50°F AND MAY CRYSTALIZE THE RESIN COMPONENT OR PART A.
THIS CAN BE EASILY REVESE WITH NO ADVERSE AFFECT ON ITS CURED MECHANICAL PERFORMANCE OR SHELF LIFE.
PROCESSING EPOXY RESINS TO COUNTERACT AFFECTS OF COLD TEMPERATURE EXPOSURE
TO COUNTER ACT THE AFFECTS OF THE COLD TEMPERATURE EXPOSURE, WARM THE RESIN GENTLY BY PLACING IT IN A SEAL PLASTIC BAG
AND IMMERSE IT IN HOT WATER OR A WARM ROOM AND ALLOW IT TO ACCLIMATE UNTIL IT IS UNIFORMLY AT 75°F TO 80°F MAXIMUM BEFORE
ADDING THE CURING AGENT.
1. PLACE THE BOTH CONTAINERS IN A HOT BOX OR A WARM ROOM AND ELEVATE THE AMBIENT CURE TEMPERATURE TO AT LEAST 75°F TO 80°F.
2. PLACE BOTH COMPONENTS UNDER DIRECT SOLAR HEAT FOR SEVERAL HOURS UNTIL IT IS WARM TO THE TOUCH.
A HEAT POST CURE USING INFRARED LAMPS
(120°F TO 150°F FOR 2 HOURS)
AFTER IT HAS CURED TO NONE TACKY-DRY TO THE TOUCH WILL INSURE FULL CURE.
USE AN INFRARED HEAT LAMP FOR LARGER PARTS IF A PROCESS OVEN IS NOT AVAILABLE
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MAX CLR RESIN SYSTEM
FOR FABRICATING VERY CLEAR COMPOSITE LAMINATES
MAX CLR RESIN SYSTEM COMES IN SEVERAL VERSIONS AND KIT SIZES
link updated 1/11/2010
MAX CLR LOW VISCOSITY
STANDARD VERSION OFFERING CRYSTAL CLARITY, LOW VISCOSITY,
LONG WORKING TIME AND IMPACT RESISTANCE
24 OUNCE KIT COMBINED VOLUME
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96 OUNCE KIT COMBINED VOLUME
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1.5 GALLON COMBINED VOLUME
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7.5 GALLON COMBINED VOLUME
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MAX CLR FAST SETTING
ACCELERATED VERSION OF THE STANDARD MAX CLR LOW VISCOSITY PROVIDING 30%
FASTER CURE TIME WITH MINIMAL LOSS OF COLOR STABILITY OR EMBRITTLEMENT
24 OUNCE KIT COMBINED VOLUME
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1.5 GALLON COMBINED VOLUME
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MAX CLR HIGH PERFORMANCE
HIGH PURITY GRADE VERSION OF THE MAX CLR SERIES
MAX CLR IS THICKER OR HIGHER IN VISCOSITY
DUE TO THE HIGHER EPOXY CONTENT OR LESS DILUTION
OFFERING HIGHER HARDNESS, HIGHER HEAT RESISTANCE,
FASTER CURE AND HIGHER CURED MECHANICAL PROPERTIES
24 OUNCE KIT COMBINED VOLUME
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96 OUNCE KIT COMBINED VOLUME
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1.5 GALLON COMBINED VOLUME
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7.5 GALLON COMBINED VOLUMEhttp://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=220500555178
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Crystal Clear Transparent Color
Excellent color stability
2:1 Mix Ratio
Higher Hardness
None Blushing Formulation
Faster development of mechanical properties
Higher chemical resistance
High surface hardness
MAX CLR-HPIs an excellent resin system applications where color stability and water clarity is crucial
Scientific Specimen PreservationMolding ResinKayak, Canoe Stitch and TapeSurfboard Fiberglass Laminating ResinCraft Decoupage ResinHigh Gloss Bar Counter Top CoatingPlaque CoatingsClear CastingsChemical Resistant Coatings
MAX CLR can be used for large castings by pouring the resin in steps or stages until the desired volume is achieved
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MAX CLR-HP APPLIED AS A PROTECTIVE GLOSS COATING
MAX GPE WHITE GEL COAT
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WITH MAX CLR-HP AS A CLEAR TOP COAT
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MAX CLR RESIN SYSTEM AS A CLEAR CASTING RESIN
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PHYSICAL PROPERTIES
AND
MECHANICAL PROPERTIES
Density
1.10 G/CC
Form and Color
Clear Liquid
Viscosity
2,800 – 3,200 cPs @ 25ºC Mixed
Mix Ratio
50 Parts “B” to 100 Parts “A” By Weight
Working Time
45 – 50 Minutes @ 25ºC
(100 Gram Mass)
Peak Exotherm
70ºC (100 Gram Mass)
Thin Film Set Time
4 to 6 Hours
Handle Time
8 Hours
Cure Time
2 to 7 days @ 25ºC or 8 hours at room temperature plus 1 hours at 100ºC
Hardness
80 ± 5 Shore D,
Tee-Peel Strength
5.7 Lbs. per inch Width
Tensile Shear Strength
2,935 psi @ 25ºC
1,970 psi @ -40ºC
1250 psi @ 100ºC
Elongation
3.0% @ 25ºC
Flexural Strength
13,000 psi
Flexural Modulus
344,000 psi
Heat Deflection Temp.
110ºC
CHEMICAL RESISTANCE PERFORMANCE
FULL IMMERSION at 30°C
MEASURED PERCENT CHANGE IN WEIGHT
REAGENT
3 days
28 days
Deionized Water
0.49
1.50
Sea Water
0.11
0.98
Methanol
7.93
-2.41
Ethanol
3.98
10.28
Toluene
0.40
2.86
Xylene
0.04
0.05
Butyl Cellosolve
16.63
5.31
MEK
Destroyed
Destroyed
10% Lactic Acid
1.81
5.42
10% Acetic Acid
0.11
0.45
70% Sulfuric Acid
0.08
0.14
50% Sodium Hydroxide
0
0
10% Sodium Hypochlorite
0.51
1.36
SPECIMEN CURE CYCLE 7 days @ 25ºC plus 1 hours at 100ºC
1 CUBIC INCH SPECIMEN SIZE
NOW AVAILABLE FOR FREE DOWNLOAD
MAX CLR TABLETOP THICK COATINGS BULLETIN.pdf
A CONCISE GUIDE ON HOW TO USE THE MAX CLR SERIES FOR TABLETOPS, COUNTERTOPS, PLAQUES AND IMBEDDING PROJECTS
MAX CLR REACTION RATE GRAPH.pdf
ANALYTICAL GRAPH OF CURE RATE OF THE MAX CLR SERIES EPOXY RESIN
MAX CLR SERIES HEAT PERFORMANCE GRAPH.pdf
ANALYTICAL GRAPH COMPARING THE HEAT PERFORMANCE OF THE MAX CLR SERIES
WHICH EPOXY IS BEST FOR YOUR APPLICATION?
Epoxy based polymers are one of the most versatile thermoset resins that can be modified into a multitude of applications and fit very specific task as demanded by the application. It offers ease of use and generally safer to handle over other types of thermoset resins which makes it the choice material for many high performance composites.
New ideas demand new technology in material science and the skill to compose its constituent into a synergistic composite.
What is impact testing?
Impact testing is one of the most revealing test methods that demonstrate a material’s ability to resist and withstand a high-rate of pressure loading,
its behavior during and after the impact can define its maximum mechanical property and conditional limits upon its destruction.
Why is Impact Testing Important?
The impact resistance of an object provides the ultimate measure of its resistance to its definitive destruction.
Governed by the many laws and dynamics of physics, a skilled chemist or materials engineer
can determine the design equilibrium and ultimate performance by careful analysis of the material’s disassociation and the manner of its destruction.
With this knowledge, other aspects of mechanical performance can be accurately derived and through skilful engineering one can determine:
The impact energies the part can be expected to see in its lifetime,
The type of impact that will deliver that energy, and then
Select a material that will resist such assaults over the projected life span.
Adobe Flash Player must be installed in your computer to view the demonstration video
Click on the box if you see a blank screen and a dialog box will open and download the latest version of the Adobe Player
PROPER MIXING OF EPOXY RESINS
DURING COLDER SEASON, THE EPOXY RESIN AND CURING AGENT WILL BE THICKER OR HIGHER IN VISCOSITY.
TEMPER BOTH COMPONENTS TO AT LEAST 23°C TO 25°C BEFORE MIXING. A GOOD METHOD IS TO PLACE THE BOTTLES IN A WARM ROOM FOR 24 HOURS OR PLACE BOTH COMPONENTS IN A PLASTIC BAG AND SEAL TIGHTLY AND THEN PLACE IN HOT WATER BATH FOR ABOUT 2 TO 4 HOURS. REMOVE FORM THE WATER BATH AND INSURE THAT THE COMPONENTS ARE BELOW 80°F BEFORE MIXING TOGETHER. THIS WILL LOWER THE VISCOSITY TO THE CONSISTENCY AS SHOWN ON THE VIDEO DEMONSTRATION.
PLEASE VIEW THE FOLLOWING VIDEO FOR THE PROPER MIXING OF EPOXY RESIN. IT DEMONSTRATES THE PROPER TECHNIQUE OF MIXING ANY TYPE OF EPOXY RESIN REGARDLESS OF MIX RATIO OR FORMULATION.
THE SLIDES SHOW DEMONSTRATES ONE OF THE MOST COMMON CAUSE OF TACKY AND UNCURED SPOTS PROBLEMS WHICH CAN BE DIRECTLY CORRELATED TO THE QUALITY AND MIX TECHNIQUE.
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DEMONSTRATION OF REMOVING SURFACE AIR BUBBLES USING THE ACETONE SPRAY TECHNIQUE
IMPROVING SURFACE GLOSS, LUSTER AND OVERALL SURFACE DURABILITY
PLEASE VIEW THE FOLLOWING VIDEO DEMONSTRATION REGARDING BATCH SIZE MIXING.
THE RESIN USED WAS BASE LINE LABORATORY FORMULATION PREPARED FOR THIS DEMONSTRATION WHICH HAS SIMILAR POLYMER CROSS LINKING REACTION WHEN MIXED IN LARGE MASS AND ALLOWED TO REACT IN A CONFINED MASS
MAX CLR-HP A/B
IS EXCELLENT FOR TABLETOP BARTOPS AND PLAQUE COATINGS
PLEASE DOWNLOAD OUR MAX CLR COATING TECHNIQUES BULLETIN FOR FREE INSTRUCTIONS AND TIPS TO USE THIS SYSTEM FOR COATINGS APPLICATIONS
http://www.polymercompositesinc.com/max_clr_tabletop_bulletin.pdf
Through several years of doing business in this ebay forum, I have had the pleasure of meeting hundreds of very talented people and many occasions became very involved with their project.
My collaboration with Mr. Rod Ham was one that reminded me of the rewards of sharing and lending my capacity for creating polymer products and experience in its use with his adept craftsmanship in woodworking. With his kind permission, I am posting a copy of our correspondence which details our exchange of ideas and fabricating procedure in which in the end our collaboration, yielded this amazing art piece.
I hope this document finds it way to other artisans and alike that would find value in its content.
Gerald Lapuz
PolymerProducts
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Rod Ham’s Tabletop Project, A Lesson In Synergy.pdf
MAX CLR can be cut or ground to shaped and polished to high gloss finish.
This process will also increase scratch resistance and surface luster
Polishing Procedure
Allow to fully cure for 48 hours before grinding
Cut or grind to shape
Sand 400 grit wet dry
Wet sand with 1600-grit sand paper
Polish with abrasive free wax or polish.
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FOR IMBEDDING OR LARGE CASTING APPLICATIONS
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CREATE POLYMER COMPATIBLE DYES WITH ABSOLUTE COLOR TRANSPARENCY
USE MAX CTE WITH ANY OF THE MAX CLR EPOXY SYSTEM TO MAKE COLOR TRANSPARENT CASTINGS
MAX CTE
Color Tint Extractor
Colors and tints can be added to
MAX CLR-HP to create transparent colored castings.
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Extract Any Color Using MAX CTE from Rit® Powder Dye
100% Soluble in Epoxy Resin
Make True Transparent Colored Epoxy Resin
Easy to Use Just Mix, Filter And Add To Any Of Our MAX Epoxy Resin
Adjust Color Saturation
Low Cost Alternative To Pigment Dispersion
Low Toxicity, No Solvents, None Flammable
Color Stable
Wide Selection Of Colors
MAX CLR-HP FOR COMPOSITE APPLICATIONS
Don’t how much resin to buy to go with the fiberglass?
A good rule of thumb is to calculate 65% fiberglass to 35% resin by weight. Use 60% to 40% as a safe factor. For example:
1 yard of 8 ounce fabric at 38 inches wide weighs 224 grams
1 yard of 10 ounce fabric at 38 inches wide weighs 280 grams
(224/60%) X 40% = 149.3 grams of resin needed
1 gallon of resin = 4239 grams (1.12 g/cc)
1 gallon is 128 fluid ounce
1 fluid ounce of resin = 33.17 grams
So for every square yard of 8 ounce fabric, you will need 4.50 fluid ounces of mixed resin
VIEW OUR NEWEST ADDITION TO OUR FREE INSTRUCTIONAL VIDEO
This video demonstrates the best technique of fabricating fiberglass laminate using a wet lay-up process.
Adobe Flash Player must be installed in your computer to view the demonstration video.
Click on the box if you see a blank screen and a dialog box will open and download the latest version of the Adobe Player
CARBON FIBER FLAT PANEL PRODUCTION
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WOOD FIBERGLASSING
Satin Weave Style For Contoured Parts Fabricating
Composite Fabricating Basics
TYPES OF FABRIC WEAVE STYLE AND SURFACE FINISHING
FOR RESIN TYPE COMPATIBILITY
PLAIN WEAVE
Is a very simple weave pattern and the most common style. The warp and fill yarns are interlaced over and under each other in alternating fashion. Plain weave provides good stability, porosity and the least yarn slippage for a given yarn count.
8 HARNESS SATIN WEAVE
The eight-harness satin is similar to the four-harness satin except that one filling yarn floats over seven warp yarns and under one.
This is a very pliable weave and is used for forming over curved surfaces.
4 HARNESS SATIN WEAVE
The four-harness satin weave is more pliable than the plain weave and is easier to conform to curved surfaces typical in reinforced plastics. In this weave pattern there is a three by one interfacing where a filling yarn floats over three warp yarns and under one.
2×2 TWILL WEAVE
Twill weave is more pliable than the plain weave and has better drivability while maintaining more fabric stability than a four or eight harness satin weave. The weave pattern is characterized by a diagonal rib created by one warp yarn floating over at least two filling yarns.
COMMERCIAL FIBERGLASS-FABRIC WEAVER
Finishing Cross Reference
And
Resin Type Compatibility
RESIN COMPATIBILITY
Burlington Industries
Clark Schwebel
J.P Stevens
Uniglass Industries
Epoxy, Polyester
VOLAN A
VOLAN A
VOLAN A
VOLAN A
Epoxy, Polyester
I-550
CS-550
S-550
UM-550
Phenolic, Melamine
I-588
A1100
A1100
A1100
Epoxy, Polyimide
I-589
Z6040
S-920
UM-675
Epoxy
I-399
CS-272A
S-935
UM-702
Epoxy
CS-307
UM-718
Epoxy
CS-344
UM-724
Silicone
112
112
n-pH (neutral pH)
Satin Weave Style For Contoured Parts Fabricating
These styles of fabrics are one of the easiest fabrics to use and it is ideal for laying up cowls, fuselages, ducts and other contoured surfaces with minimal distortions. The fabric is more pliable and can comply with complex contours and spherical shapes. Because of its tight weave style, satin weaves are typically used as the surface ply for heavier and courser weaves. This technique helps reduce fabric print through and requires less gel coat to create a smoother surface.
SATIN WEAVE TYPE CONFORMITY UNTO CURVED SHAPES
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Plain Weaves, Bi-axial, Unidirectional Styles For Directional High Strength Parts
Use this weave style cloth when high strength parts are desired.
It is ideal for reinforcement, mold making, aircraft and auto parts tooling, marine and other composite lightweight applications.
PLAIN WEAVE STYLE FOR HIGH STRENGTH
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Please visit our ebay store for all available composite fabric suitable for your needs.
Step Two: Choose the best epoxy resin system for the job
The principal role of the resin is to bind the fabric into a homogenous rigid substrate
called a composite laminate or FRP- FIBER REINFORCED PLASTIC.
The epoxy resin used in fabricating a laminate will dictate how the
FRP will perform when load or pressure is implied on the part.
To choose the proper resin system consider the following factors
that is crucial to a laminate’s performance.
SIZE AND CONFIGURATION OF THE PART
(NUMBER OF PLIES AND CONTOURED, FLAT OR PROFILED)
CONSOLIDATING FORCE
(FREE STANDING DRY OR HAND LAY-UP, VACUUM BAG OR PLATEN PRESS CURING)
CURING CAPABILITIES
(HEAT CURED OR ROOM TEMPERATURE CURED)
LOAD PARAMETERS
(SHEARING FORCE, TORSIONAL AND DIRECTIONAL LOAD, BEAM STRENGTH)
ENVIRONMENTAL EXPOSURE
(OPERATING TEMPERATURE, AMBIENT CONDITIONS, HUMIDITY, CHEMICAL EXPOSURE, CYCLIC FORCE LOADING)
MATERIAL AND PRODUCTION COST
(BUYING IN BULK WILL ALWAYS PROVIDE THE BEST OVERALL COSTS AS WELL AS DOING IT RIGHT THE FIRST TIME)
These factors will dictate the design and the composition of the part and must be carefully considered during the design and engineering phase of the fabrication.
MAX BOND LOW VISCOSITY FOR MARINE APPLICATIONS
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MAX GPE FOR GENERAL CONSTRUCTION LOW COST APPLICATIONS
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SAFE TO USE ON POLYSTYRENE FOAM
MAX CLR HP CRYSTAL CLEAR HIGH PERFORMANCE APPLICATION
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MAX HTE FOR HIGH TEMPERATURE RESISTANCE APPLICATIONS
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Specimens were cured 3 Hours at 25˚C plus 2 Hours At 155˚C
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Step Three: Proper Lay-Up Technique
Pre-lay-up notes
Lay out the fabric and precut to size and set aside
Avoid distorting the weave pattern as much as possible
For fiberglass molding, insure the mold is clean and adequate mold release is used
View our video presentation above “MAX EPOXY RESIN MIXING TECHNIQUE”
Mix the resin only when all needed materials and implements needed are ready and within reach
Mix the proper amount of resin needed and be accurate proportioning the resin and curing agent.
Adding more curing agent than the recommended mix ratio will not promote a faster cure.
Over saturation or starving the fiberglass or any composite fabric will yield poor mechanical performance. When mechanical load or pressure is applied on the composite laminate, the physical strength of the fabric should bear the stress and not the resin. If the laminate is oversaturated with the resin it will most likely to fracture or shatter instead of rebounding and resist damage.
Don’t how much resin to use to go with the fiberglass?
A good rule of thumb is to maintain a minimum of 30 to 35% resin content by weight, this is the optimum ratio used in high performance prepreg (or pre-impregnated fabrics) typically used in aerospace and high performance structural application.
For general hand lay-ups, calculate using 60% fabric weight to 40% resin weight as a safe factor.
This will insure that the fabricated laminate will be below 40% resin content depending on the waste factor accrued during fabrication.
Place the entire precut fiberglass to be used on a scale to determine the weight ratio between the resin and fabric composition.
Typical fabric weights regardless of weave pattern
1 yard of 8 OSY fabric at 38 inches wide weighs 224 grams
1 yard of 10 OSY fabric at 38 inches wide weighs 280 grams
Ounces per square yard or OSY is also know as aerial weight which is the most common unit of measurement for composite fabrics.
If a scale is available, measuring by weight will insure accurate composite fabrication and repeatability, rather than using OSY data.
To determine how much resin is needed to adequately impregnate the fiberglass, use the following equation:
(Total Weight of Fabric divided by 60%)X( 40%)= weight of mixed resin needed
fw = fabric weight
rc = target resin content
rn= resin needed
(fw/60%)x(40%)= rn
FOR EXAMPLE
1 SQUARE YARD OF 8-OSY FIBERGLASS FABRIC WEIGHS 224 GRAMS
(224 grams of dry fiberglass / 60%) X 40% = 149.33 grams of resin needed
So for every square yard of 8-ounce fabric,
It will need 149.33 fluid ounces of mixed resin.
Computing for resin and curing agent requirements based on
149.33 grams of resin needed
MIX RATIO OF RESIN SYSTEM IS 2:1 OR
50PHR (per hundred resin)
2 = 66.67% (2/3)
+
1= 33.33%(1/3)
=
(2+1)=3 or (66.67%+33.33%)=100% or (2/3+1/3)= 3/3
149.33 x 66.67%= 99.56 grams of Part A RESIN
149.33 x 33.33%= 49.77 grams of Part B Curing Agent
99.56 + 49.77 = 149.33 A/B MIXTURE
Common Factors Of 100% Solids (Zero volatiles and unfilled epoxy resin)
1 gallon of resin = 4239 grams (1.12 g/cc)
1 gallon = 128 fluid ounces
1 gallon of resin = 231 cubic inches
1 fluid ounce of resin = 33.17 grams
Apply the mixed resin unto the surface and then lay the fabric
and allow the resin to saturate through the fabric.
NOT THE OTHER WAY AROUND
This is one of the most common processing error that yields sub-standard laminates.
By laying the fiberglass unto a film of resin, less air bubbles are entrapped during the wetting-out stage.
Air is pushed up and outwards instead of forcing the resin through the fabric which will entrap air bubbles.
This technique will displace air unhindered and uniformly disperse through out the fiberglass with minimal mechanical agitation or spreading.
Note the slide show presentation
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Typical Fiberglass Reinforcing Technique Unto A Wood Substrate
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For Vacuum Bagging Process
VACUUM BAGGING
INSTRUCTIONAL VIDEO
ROOM TEMPERATURE CURED MAX EPOXY RESIN
MAX BOND LOW VISCOSITY
USED FOR STRUCTURAL APPLICATIONS
TOP AND BOTTOM LAYER 9 OUNCE 4 HARNESS SATIN WEAVE
15 LAYERS CORE 24-OUNCE FIBERGLASS PLAIN WEAVE ROVING
MAX CLR-HP
FOR CARBON FIBER CRYSTAL CLEAR HIGH PERFORMANCE
SINGLE PLY 12-OUNCE 2X2 TWILL WEAVE CARBON FIBER
Given enough time and the proper selection of the fabric’s surface treatment (fabric to resin compatibility), a dry fabric will seek a state equilibrium and distribute the applied resin and naturally release air bubbles entrapped within the laminate.
It is then very important that the proper viscosity, working time and surface treatment of the fabric must considered.
Given enough time and the proper selection of the fabric’s surface treatment (fabric to resin compatibility), a dry fabric will seek a state equilibrium and distribute the applied resin and naturally release air bubbles entrapped within the laminate.
It is then very important that the proper viscosity, working time and surface treatment of the fabric must considered.
There are also fabricating techniques that can be employed to yield high performance laminate.
Depending on the size of the part, processes such as high pressure pressing, vacuum bagging and vacuum assisted resin transfer molding are superior methods over hand dry lay-up.
Air voids or porosity within the laminate is typically where failure propagates when load is applied
(fracturing, compression failure, tearing, torque, tensile strength, creep).
Step Four: Proper Curing
Allow the lay-up to cure for 24 hours before handling.
Optimum cured properties can take up to 7 days depending on the ambient cure condition.
The ideal temperature cure condition of most room temperature epoxy resin is 22 to 27 degrees Celsius at 20% relative humidity.
Higher ambient curing temperatures will promote faster polymerization and development of cured mechanical properties.
Improving mechanical performance via post heat cure
A short heat post cure will further improve the mechanical performance of most epoxy resins. Allow the applied resin system to cure at room temperature until for 18 to 24 hours and if possible, expose heat cure it in an oven or other source of radiant heat (220°F to 250°F) for45 minute to an hour. You can also expose it to direct sunlight but place a dark colored cover, such as a tarp or cardboard to protect it from ultraviolet exposure.
In general room temperature cured epoxy resin has a maximum operating temperature of 250°F and 160°F or lower
if it is under stress or load.
A short heat post cure will insure that the mixed epoxy system is fully cured,
especially for room temperature cured system that can take up to 7 days to 100% cure
Some darkening or yellowing of the epoxy resin may occur if over exposed to high temperature (>250 F).
AMINE BLUSH
The affinity of an amine compound (curing agent) to moisture and carbon dioxide creates a carbonate compound
and forms what is called amine blush.
Amine blush is a wax-like layer that forms as most epoxies cure.
If the epoxy system is cured in extreme humidity (>70%).
It will be seen as a white and waxy layer that must be removed by
physical sanding of the surface followed by an acetone wipe.
Although we have formulated the MAX CLR, MAX BOND and MAX GPE product line to be resistant to amine-blush,
it is recomended not to mix any resin systems in high humidity conditions, greater than 70%.
Always make sure that the substrate or material the epoxy resin system is being applied to
is as dry as possible to insure the best cured performance.
OTHER TYPES OF EPOXY (Polymer)RESIN CURE MECHANISM
LATENT CURING SYSTEMS
Latent epoxy resins are systems that are mixed together at room temperature and will begin polymerization but it will not achieve full cure unless it is exposed to a heat cure cycle. In general, these are high performance systems that demonstrate exceptional performance under extreme conditions such as high mechanical performance under heat and cryogenics temperatures, chemical resistance or any environment that epoxy room temperature system perform marginally or poorly.
Upon the mixing of the resin and curing agent polymerization will begin and will only achieve partial cure. Some resins may appear cured or dry to the touch, this state is called ’B-Stage Cure’ ,but upon application of force will either be gummy or brittle almost glass-like and will dissolve in most solvents. The semi-cured resin must be exposed to an elevated temperature for it to continue polymerization and achieve full cure.
HEAT ACTIVATED CURING SYSTEMS
This type of epoxy system will not polymerized unless it is exposed to the activation temperature of the curing agent which can be as low as 200F and as high as 400F. In most instances these epoxy system can be stored at room temperature and remain liquid for up to six months and longer
USE AN INFRARED HEAT LAMP FOR LARGER PARTS IF A PROCESS OVEN IS NOT AVAILABLE
UV CURINGSYSTEMS
Similar to “addition cure” or catalytic polymerization, Ultraviolet Curing is another method that has gained popular use in the polymer adhesives and coatings application. It offers a unique curing mechanism that converts a liquid polymer into a solid plastic upon exposure to UV radiation. The two common commercially significant method are “FREE RADICAL INITIATION” and CATIONIC REACTION. In both reaction polymerization occurs via decomposition of a Photoiniator blended within the resin system; upon exposure to adequate wavelength of Ultraviolet energy the photoinitator degrades and casue a ring opening or cleaveage of the photoinitiator molecule and induces rapid polymerization or crosslinking. These species can be either free radical or cationic and occurs almost instantaneous creation of a polymer network.
USE AN INFRARED HEAT LAMP FOR LARGER PARTS IF A PROCESS OVEN IS NOT AVAILABLE
POSSIBLE HEAT CURING TECHNIQUES
If an oven is not available to provide the needed thermal post cure, exposing the assemble part to direct solar heat
(sun exposure) for a period will provide enough heat cure for the part to be handled. Other heat curing such as infrared heat lamps can be used if a heat chamber or oven is not available.
3 Hours (after 24 hours room temperature) solar exposure Infrared heat bulb 3 hour exposure (200oF average) vacuum bag cure
DON’T FORGET OUR EPOXY MIXING KIT
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EVERYTHING YOU NEED TO MEASURE, MIX, DISPENSE OR APPLY ANY OF OUR MAX EPOXY RESIN IN ONE CONVENIENT KIT
Proportioning the correct amount is equally important to insure the intended cured properties of the resin system.
The container in which the epoxy and curing agent is mixed is an important consideration when mixing an epoxy resin system.
The container must withstand the tenacity of the chemical and must be free of contamination.
Most epoxy curing agent has a degree of corrositivity, as a general practice, protective gloves should be worn when handling chemicals of the same nature.
MIXING KIT CONTENTS
4 each 32 ounce (1 Quart) clear HDPE plastic tubs
4 each 16 ounce (1 pint) clear HDPE plastic tubs
4 each clear HDPE plastic Lids for the plastic tubs
4 each 8 ounce (1/2-Pint) Wax Free Paper Cups
5 pairs one size fits all Powder Free Latex Gloves (Large)
6 Piece HDPE Plastic Measuring Spoon Kit
(1 tablespoon to 1/8 teaspoon)
10 Piece HDPE Plastic Measuring Cup
(1 Cup to 1/8 Teaspoon)
2 each None Sterile Graduated 10 cc Syringes
1 pack of Wooden Stir Sticks (100 disposable Chopsticks)
1 pack Assorted Size Bristle Brush (5 per pack)
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PolymerProducts, The Epoxy Experts
Is Now Your One Stop Source
For All Your Composite Fabric Needs
MADE IN THE USA
We Have Just Acquired Thousands Of Yards
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Factory woven by one of the largest weavers and producers of composite fabrics for aerospace, marine, electronic and structural composite materials.
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For International Orders Please Inquire For Shipping Cost and ‘request total from seller’ to receive combined shipping cost if purchasing more than one product from our store. We will assemble the package and accurately weigh out the entire package and provide you the best shipping cost.
If you need to purchase more than what is listed in this item page, please visit our ebay store or click on the following link below to order larger quantities.
Make sure to request for a total to get the best shipping cost.
Other Fabric Weave Types And Finishing Available
Also Available in Full Rolls
Please Inquire And We Will List The Fabric Type Of Your Choice On Our eBay Store
Please inquiry for volume discount.If you have any questions or special applications,
our staff polymer chemist will be more than happy to answer your questions.
PLEASE CHECK OUT OTHER AVAILABLE
RESIN SYSTEMS AT OUR eBAY STORE
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IMPORTANT NOTICE
Your purchase constitutes the acceptance of this disclaimer . Please review before purchasing this product.
The user should thoroughly test any proposed use of this product and independently conclude satisfactory performance in the application. Likewise, if the manner in which this product is used requires government approval or clearance, the user must obtain said approval.The information contained herein is based on data believed to be accurate at the time of publication. Data and parameters cited have been obtain through publish information, PolymerProducts and Polymer Composites Inc. laboratories using materials under controlled conditions. Data of this type should not be used for specification for fabrication and design. It is the user’s responsibility to determine this Composites fitness for use. There is no warranty of merchantability of fitness of use, nor any other express implied warranty. The user’s exclusive remedy and the manufacturer’s liability are limited to refund of the purchase price or replacement of the product within the agreed warranty period. PolymerProducts and its direct representative will not be liable for incidental or consequential damages of any kind. Determination of the suitability of any kind of information or product for the use contemplated by the user, the manner of that use and whether er there is any infringement of patents is the sole liability of the user.
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