1 US GALLON COMBINED VOLUME (128 FL.OZ)
1/2 GALLON PART A (64 FL.OZ)
1/2 GALLON PART B (64 FL.OZ)
Epoxy/Polyamide based resins are one of the best systems to use for applications that will be subject to water immersion and marine environments.
It provides excellent resistance to salt water, acidic and caustic exposure and retains its physical properties even after prolonged water immersion.
PRODUCT DESCRIPTION
MAX BOND LOW VISCOSITY A/B is a two-part epoxy/polyamide resin system specially formulated to provide structural strength to a variety of marine and boat building uses such as structural fiberglassing, waterproofing, and high strength bonding application.
It is the low viscosity version (thinner) of MAX BOND family of marine grade resin systems providing improved ease of use and faster fiberglass fabric wetting.
Bonds To Steel, Aluminum, Metals, Concrete, Fiberglass, And Composites Waterproofing Sealant For Wood, Metals, Concrete 1:1 Mix Ratio, Equal Parts By Volume Or By Weight Brush, Roller Coat, Trowel Applied Excellent Impact Resistance Excellent Balance Of Strength And Flexibility Excellent Water/Salt Water Resistant For Marine/Aero Applications Low Shrinkage, Wide Range Of Service Temperature
The consistency of this formulation is similar honey (5600 cPs @77°F) . It is only diluted from the base epoxy and curing agent formulation to yield ease of use and general fabric impregnation. Over dilution of epoxy resin (below 1000 cPs similar to the consistency of mineral oil) are over diluted with lower functional epoxy diluents that will also dilute and lower the final cured mechanical strength.
All the MAX BOND series of epoxy resin demonstrates excellent adhesion to polyester based marine hulls.
MAX BOND LOW VISCOSITY A/B demonstrates structural bond strengths to a variety of substrates commonly used in the manufacturing of modern marine vessels of such as wood, steel, aluminum, copper and other metal alloys, polyester constructed fiberglass, and most plastics. It is an excellent resin system as an impregnating resin for fiberglass fabric, wood sealing, waterproofing and in all manners of boat building construction, repair, and maintenance.
It is room temperature cured or heat cured for faster cure time.
WHICH EPOXY IS BEST FOR YOUR APPLICATION?
Epoxy based polymers are one of the most versatile thermoset plastics 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 make 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 at a short amount of time. 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 engineering, one can determine the impact energies the part can withstand and design the construction that will resist such assaults over the projected lifespan.dddddd
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High Impact Boat Building Marine Grade Epoxy Resin For Impregnating \u0026 Fiberglassing \u0026 Wood Sealing.
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[isdntekvideo]THIS KIT INCLUDES A SET OF YORKER CAPS FOR CONTROLLED DISPENSING.
Use these Yorker caps to dispense the material with ease and minimize over pouring and reduce spills. We do not recommend using dispensing pumps The curing agent or PART B of any epoxy resin system is sensitive to moisture and carbon dioxide, which will react with the curing agent and form carbamate crystals lower strength and performance.
How To Use This Resin System
Review All Published Data Regarding This Product. Prepare the surface for bonding or coating, especially if applying over an old coating
Proper Usage Data And Other Detailed Information Are Posted At This Page.
Mix the Resin And Curing Agent Only After The Surface Is Prepared For Application. SURFACE PREPARATION
The quality of adhesion of any coating or adhesive application is dependent on how well the surface is prepared. The resin system must be able to properly 'wet-out' the surface to form a continuous film. Surfaces demonstrating poor wettability prevents the liquid resin from forming a cohesive bond. Improper surface wetting yields poor adhesion and will delaminate during use.
Wetting is the ability of a liquid to interfaces or wet-out a solid surface; its dynamics is expressed as surface tension. A surface that demonstrates low surface tension, such as waxed surface, oily surface or slick plastics like Teflon will prevent the liquid resin to wet-out and cause poor adhesion. In the same respect, if the surface is coated from a previous application, the epoxy adhesion is limited to adhesion quality of the primary coating is applied over. For best results, make sure to remove any loose or peeling old coating before application to avoid delamination. If possible remove the old coating by mechanical sanding or power washing so the applied epoxy is in direct contact with the base substrate. Applying a coating over oil-based stain should be avoided. Watch Video Demonstration On How To Test And Prepare The Surface Before Applying Any Coating or AdhesiveWhy Coatings Bead Up \u0026 Separate. Surface Test \u0026 Prep Before Applying Epoxy Coating To Avoid Crawling
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[isdntekvideo] RESIN CRYSTALLIZATION FROM PROLONGED STORAGE OR COLD TEMPERATURE EXPOSURE Check The PART A RESIN Bottle For Crystallization During the winter months, the PART A or RESIN component may crystallize and cause poor cure performance. Our MAX Epoxy Resins are formulated with high purity grade resin polymers which makes it prone to crystallization when exposed to temperatures below 57°F. Crystallization can also occur after the resin has been stored over a period. It will appear as a waxy white mass at the bottom of the bottle. The PART A or RESIN component must be in its liquid form to thoroughly mix with the PART B or curing agent to achieve full cure. DO NOT USE UNLESS PROCESSED View the following video for identification and processing.EPOXY RESIN CRYSTALLIZATION - Solidified Epoxy Resin Processing
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[isdntekvideo]DETERMINE THE AMOUNT THE BATCH SIZE NEEDED Cut and paste this link to use coverage calculator; https://instacalc.com/35245/embedd Take into account that some of the coating thickness will be absorbed into the porosity or the roughness of the surface. Begin by mixing a small batch to gain experience with the polymerization process of the resin system. Blending amounts greater than 1000.0 grams or 1 quart in volume requires careful mixing. The mixed resin must be applied within the established working time to prevent a "run-away" reaction.
Do not let the mixed resin to sit in mass greater than 10 minutes. The exothermic heat generated during polymerization will accelerate the chemical reaction and cause a 'run-away' reaction to occur. A 'run-away' reaction can produce temperatures above 300°F and cause an uncontrollable chemical reaction. Mix the proper amount of resin and curing agent and apply within 10-15 minutes to avoid this from occurring. Calculate the amount to be mixed by measuring the length x width x thickness of the area to be coated to obtain the cubic volume of the resin needed.Use These Factors To Convert Gallon Needed Into Volumetric Or Weight Measurements. Fluid Gallon To Volume Conversion
1 Gallon = 231 Cubic Inches 1 Gallon = 128 Ounces 1 Gallon = 3.7854 Liters 1 Gallon = 4 Quarts 1 Gallon = 16 Cups |
Fluid Gallon Mass Conversions
1 Gallon Of Mixed Unfilled Epoxy Resin = 9.23 Pounds 1 Gallon Of Mixed Unfilled Epoxy Resin = 4195 Grams |
Epoxy Resin Mixing Procedure The proper cure and final performance of any epoxy resin system are highly dependent on the quality and thoroughness of the mixing quality. The resin and curing agent must be mixed to homogeneous consistency to achieve proper cure and tack-free results.
For best cure results, measure the resin and curing agent using a weighing scale. Mix the resin and curing agent by hand to minimize air bubble entrapment. Blend for 3 minutes and transfer the entire mixture in another clean container and mix for another 2 minutes. This technique will prevent tacky or uncured resin and ensure a homogeneous mixture. The demonstration below utilized a different resin system than the MAX BOND LOW VISCOSITY. This mix technique is applicable for mixing two component epoxy resin system
How To Mix Epoxy Resin For Food Contact Coating. Avoid Tacky Spots, Minimize Air Bubble When Mixing - YouTube
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[isdntekvideo]PHYSICAL PROPERTIES
Density (Mixed) | 1.10 gm/cc |
Form and Color | Part A – Clear Liquid |
| Part B – Amber Liquid |
Viscosity Mixed | 5,624 cPs @ 77°F (25ºC) |
Mix Ratio | Equal parts by weight or by volume |
Working Time | 65 Minutes @ 77°F (25ºC) (200 gm mass) |
Peak Exotherm | 280°F 300 gram mass |
Cure Time | 36 Hrs. Minimum |
Accelerated Heat Cure Time | 2 Hrs. @ room temperature plus |
| 120 min. @ 212°F (100°C) |
MECHANICAL PROPERTIES
Hardness | 85 Shore D |
Tee-Peel Strength | 3.7 Pounds Per Inch Width |
Compressive Strength | 12,300 psi @ 77°F (25ºC) |
Tensile Shear Strength | 3,800 psi @ 77°F (25ºC) |
| 1,900 psi @ -112°F (-80ºC) |
| 1050 psi @ 212°F (100ºC) |
Elongation | 2.3% Maximum Yield |
Service Temperature | -67°F to 250°F |
Dielectric Value Electrical insulation | 510 volts per .001" film thickness |
CHEMICAL RESISTANCE TEST
10 Day Soak Test @ 77°F (25°C) - WEIGHT CHANGE IN PERCENT
Distilled Water | .17 % |
3% Salt Water | .21 % |
Sulfuric Acid 30% | 1.9 % |
Nitric Acid | 3.8 % |
Ammonia 10% | 3.7 % |
Sodium Hydroxide | 10.00 % |
Anti-Freeze or Motor Oil | No Effect |
Customer Boat Building Video With MAX BOND LOW VISCOSITY
Blondie Build vlog003: How to fillet with epoxy and wood flour.
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[isdntekvideo] Transom Fabrication MAX BOND LOW VISCOSITY was used as a laminating adhesive to bond 3/4 inch plywood to create the transom. It was also used as a coating to seal the wood, yielding a waterproof protective coating.
BASICS STEPS OF WOOD SEALING AND WATERPROOFING
For Trailer Flooring Or Boat Deck Replacement
Step 1. Ensure that the wood is as dry as possible; any excessive moisture will be sealed the wood once it is coated with the resin.
Pre-cut the plywood to the desire size and shape before applying the epoxy coating. Cutting will be very difficult once the plywood has been sealed with the epoxy resin. Step 2. MAX BOND LOW VISCOSITY Preparation And Mixing Prepare the MAX BOND LOW VISCOSITY, prewarm or temper the Resin and Curing Agent To 75 °F for best results. The viscosity and cure time of the resin system is greatly affected by temperature; it will be thicker and cure slower during colder temperature and thinner and cure faster during the summer months. The mix ratio is 1:1 by volume or by weight and offers up to 60 minutes of working time. Blend the two components until uniform in consistency, hand mix or use a mixer at slow speed as not to introduce air bubbles. Thinning The MAX BOND LOW VISCOSITY With Acetone (Optional) Use a fast evaporating solvent to dilute the epoxy such as acetone to reduce the viscosity and improve wetting and saturating porous wood. This will create an effective wood penetrating sealer and upon cure, it will saturate the wood more efficiently and seal the wood completely. Add no more than 5% solvent by weight or by volume to the mixed resin. Too much solvent will retard the reaction rate of the resin and will cure slowly to weak and soft finish. How To Accurately Calculate 5% Solvent Addition By Weight Determine The Weight Of The Mixed Resin And Curing Agent. = W1 Divide W1 by 95% = W2 Multiply W2 by 5% = W3 Add W3 + W1 = Mixed Epoxy 95% + Acetone 5% = 100% with 5% Acetone Diluted Epoxy/Curing Agent Mixture
For Example; 1000 Grams Of Mixed Epoxy And Curing Agent / .95 = 1053.0 Grams ( W1) 1053.0 grams x .05 = 52.6 grams ( W2) Amount Of Acetone Needed 1000 Grams ( W1) + 52.6 Grams ( W2) = 1052.6 Grams Total Epoxy/Curing Agent Plus 5% Acetone Dilute Mixture
Mixture Weights To Make 1 Quart Of MAX BOND LOW VISCOSITY With 5% Acetone Dilution This Amount Will Coat Two Sheets Of All Sides Of A 4' x 8' Plywood
MAX BOND LOW VISCOSITY PART A |
500 Grams |
MAX BOND LOW VISCOSITY PART B |
500 Grams |
Acetone Solvent |
52.6 Grams |
Purchase this scale with any of our product offering and the shipping cost of the scale is free.
https://www.ebay.com/itm/222630300203
Application Procedure Use a brush, or a short-nap roller to apply the resin/solvent mixture. A thick roller nap is not recommended as the resin cures prematurely due to resin build-up in the roller. Allow the first coat to absorb for 10 minutes to allow the acetone to evaporate and then apply a second coat to ensure resin saturation. First coat will be readily absorb by the uncoated wood. Apply several coats consecutively to seal the wood porosity. This will also improve the structural strength of the plywood by binding all the wood fibers into a unitized layer. Some 'grain-raising' may occur which can be sanded upon cure with fine-grit sandpaper and then re-coated.
Second Application After 24 Hour Cure Once the first coat has cured to the touch (after 9 to 12 hours), apply the MAX BOND LOW VISCOSITY. Omit the solvent addition for the final coat to yield the best cured water resistance, mechanical properties and coating performance. Completely Cured Waterproof And Sealed Plywood Ready For Installation FIBERGLASSING Fiberglass Fabric Best Suited For Boat Building and Repairs Use the Style 7500 For Flat Layups10-Oz Fiberglass Plain Weave Style 7500 | 3 Yards | https://www.ebay.com/itm/223496626702 |
10-Oz Fiberglass Plain Weave Style 7500 | 5 Yards | https://www.ebay.com/itm/223495621157 |
10-Oz Fiberglass Plain Weave Style 7500 | 10 Yards | https://www.ebay.com/itm/312585593625 |
| ||
9-Oz Fiberglass 8 Harness Satin Weave Style 7781 | 2 Yards | https://www.ebay.com/itm/223669319695 |
9-Oz Fiberglass 8 Harness Satin Weave Style 7781 | 5 Yards | https://www.ebay.com/itm/223508087559 |
9-Oz Fiberglass 8 Harness Satin Weave Style 7781 | 10 Yards | https://www.ebay.com/itm/313471251199 |
AVAILABLE KIT SIZES
32 OUNCE KIT | https://www.ebay.com/itm/311947109148 |
64 OUNCE KIT | https://www.ebay.com/itm/311947125422 |
1 GALLON KIT | https://www.ebay.com/itm/311947117608 |
2 GALLON KIT | https://www.ebay.com/itm/311946370391 |
10 GALLON KIT | https://www.ebay.com/itm/222624960548 |
AVAILABLE FIBERGLASS, CARBON FIBER, AND KEVLAR FABRICS
FIBERGLASS PLAIN WEAVE 1.5-OUNCE HEXCEL 120 - 5 YARDS | https://www.ebay.com/itm/222623985867 |
FIBERGLASS PLAIN WEAVE 1.5-OUNCE HEXCEL 120 -10 YARDS | https://www.ebay.com/itm/311946399588 |
FIBERGLASS PLAIN WEAVE 7.0-OUNCE HEXCEL 7532 -5 YARDS | https://www.ebay.com/itm/222624899999 |
FIBERGLASS PLAIN WEAVE 10-OUNCE STYLE 7500 -3 YARDS | https://www.ebay.com/itm/223496626702 |
FIBERGLASS PLAIN WEAVE 10-OUNCE STYLE 7500 -5 YARDS | https://www.ebay.com/itm/223495621157 |
FIBERGLASS SATIN WEAVE 9.0-OUNCE HEXCEL 7781 -5 YARDS | https://www.ebay.com/itm/223508087559 |
| |
CARBON FIBER FABRIC 3K 2x2 TWILL WEAVE 6 OZ -3 YARDS | https://www.ebay.com/itm/311947275431 |
CARBON FIBER FABRIC 3K PLAIN WEAVE 6-OZ -3 YARDS | https://www.ebay.com/itm /311947292012 |
Pictures contributed by our actual customer that used the MAX BOND LOW VISCOSITY For Boat Building
Pictures contributed by Mr. Lee R.
Color pigment addition to an epoxy resin system with a scale - YouTube
[isdntekvideo]
Adding Color
These are color concentrates only and must be dispersed in an epoxy resin or PART A component. These color concentrates are used to blend in with MAX GPE COLORED EPOXY SYSTEM to attain other colors or to intensify color opacity.
MAX COLOR KIT https://www.ebay.com/itm/311946633043
By definition, a fabricated COMPOSITE material is a manufactured collection of two or more ingredients or products intentionally combined to form a new homogeneous material. The created composite is defined by its performance that is greater than the sum of its individual parts. This method is also defined as a SYNERGISTIC COMPOSITION.
COMPOSITE MATERIAL COMPOSITION
REINFORCING FABRIC & IMPREGNATING RESIN
PLUS
'ENGINEERED PROCESS'
EQUALS
COMPOSITE LAMINATE WITH THE BEST WEIGHT TO STRENGTH PERFORMANCE
Note The Uniformity Between The Impregnating Resin And Fiberglass Fabric Making A Transparent Laminate
With respect to the raw materials selection -fabric and resin, the fabricating process and the and curing and test validation of composite part, these aspects must be carefully considered and in the engineering phase of the composite.
TYPES OF FABRIC WEAVE STYLE AND SURFACE FINISHING FOR RESIN TYPE COMPATIBILITY
Fabrics are generally considered ”balanced” if the breaking strength is within 15% warp to fill and are best in bias applications on lightweight structures. “Unbalanced” fabrics are excellent when a greater load is required one direction and a lesser load in the perpendicular direction.
Weaves:
Most fabrics are stronger in the warp than the fill because higher tension is placed on the warp fiber keeping it straighter during the weaving process. Rare exceptions occur when a larger, therefore stronger thread is used in the fill direction than the warp direction.
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. |
2x2 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. |
SATIN WEAVE TYPE CONFORMITY UNTO CURVED SHAPES
All of our fiberglass fabrics is woven By HEXCEL COMPOSITES, a leading manufacturer of composite materials engineered for high-performance applications in marine, aerospace for commercial and military, automotive, sporting goods and other application-critical performance. These fabrics are 100% epoxy-compatible and will yield the best mechanical properties when properly fabricated.
AVAILABLE FIBERGLASS, CARBON FIBER, AND KEVLAR FABRICS
AVAILABLE FABRICS |
LENGTH |
CLICK THE LINK TO VIEW & ADD TO CART |
1.5-Oz Fiberglass Plain Weave Style 120 |
5 Yards |
https://www.ebay.com/itm/222623985867 |
1.5-Oz Fiberglass Plain Weave Style 120 |
10 Yards |
https://www.ebay.com/itm/311946399588 |
7-Oz Fiberglass Plain Weave Style 7532 |
5 Yards |
https://www.ebay.com/itm/222624899999 |
10-Oz Fiberglass Plain Weave Style 7500 |
3 Yards |
https://www.ebay.com/itm/223496626702 |
10-Oz Fiberglass Plain Weave Style 7500 |
5 Yards |
https://www.ebay.com/itm/223495621157 |
10-Oz Fiberglass Plain Weave Style 7500 |
10 Yards |
https://www.ebay.com/itm/312585593625 |
9-Oz Fiberglass 8 Harness Satin Weave Style 7781 |
2 Yards |
https://www.ebay.com/itm/223669319695 |
9-Oz Fiberglass 8 Harness Satin Weave Style 7781 |
5 Yards |
https://www.ebay.com/itm/223508087559 |
9-Oz Fiberglass 8 Harness Satin Weave Style 7781 |
10 Yards |
https://www.ebay.com/itm/313471251199 |
6-Oz Carbon Fiber 3K 2x2 Twill Weave 50 Inch Wide |
3 Yards |
https://www.ebay.com/itm/313737885612 |
6-Oz Carbon Fiber 3K Plain Weave With Tracers |
3 Yards |
https://www.ebay.com/itm/311947292012 |
Step Two:
MAX BOND LOW VISCOSITY A/B Marine Grade Boat Building Resin System, Fiberglassing/Impregnating, Water Resistance, Structural Strength
MAX BOND LOW VISCOSITY 32-Ounce Kit |
https://www.ebay.com/itm/311947109148 |
MAX BOND LOW VISCOSITY 64-Ounce Kit |
https://www.ebay.com/itm/311947125422 |
MAX BOND LOW VISCOSITY 1-Gallon Kit |
https://www.ebay.com/itm/311947117608 |
MAX BOND LOW VISCOSITY 2-Gallon kit |
https://www.ebay.com/itm/311946370391 |
MAX BOND LOW VISCOSITY 10-Gallon Kit |
https://www.ebay.com/itm/222624960548 |
MAX 1618 A/B Crystal Clear, High Strength, Lowest Viscosity (Thin), Durability & Toughness, Excellent Wood Working Resin
MAX 1618 A/B 48-Ounce Kit | https://www.ebay.com/itm/222627258390 |
MAX 1618 A/B 3/4-Gallon Kit | https://www.ebay.com/itm/222625113128 |
MAX 1618 A/B 3/4-Gallon Kit | https://www.ebay.com/itm/222627258390 |
MAX 1618 A/B 1.5-Gallon Kit | https://www.ebay.com/itm/311946441558 |
MAX CLR A/B Water Clear Transparency, Chemical Resistance, FDA Compliant For Food Contact, High Impact, Low Viscosity
MAX CLR A/B 24-Ounce Kit | https://www.ebay.com/itm/222623963194 |
MAX CLR A/B 48-Ounce Kit | https://www.ebay.com/itm/311947320101 |
MAX CLR A/B 96-Ounce Kit | https://www.ebay.com/itm/222625329068 |
MAX CLR A/B 96-Ounce Kit | https://www.ebay.com/itm/222625338230 |
MAX CLR A/B 1.5-Gallon Kit | https://www.ebay.com/itm/222626972426 |
MAX GRE A/B GASOLINE RESISTANT EPOXY RESIN Resistant To Gasoline/E85 Blend, Acids & Bases, Sealing, Coating, Impregnating Resin
MAX GRE A/B 48-Ounce Kit | https://www.ebay.com/itm/311946473553 |
MAX GRE A/B 96-Ounce Kit | https://www.ebay.com/itm/311947247402 |
MAX HTE A/B HIGH-TEMPERATURE EPOXY Heat Cured Resin System For Temperature Resistant Bonding, Electronic Potting, Coating, Bonding
MAX HTE A/B 80-Ounce Kit | https://www.ebay.com/itm/222624247814 |
MAX HTE A/B 40-Ounce Kit | https://www.ebay.com/itm/222624236832 |
Step Three:
Proper Lay-Up Technique -Putting It All Together
Pre-lay-up notes
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 to the composite laminate, the physical strength of the fabric should bear the stress and not the resin. If the laminate is over saturated 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 safety factor. This will ensure that the fabricated laminate will be below 40% resin content depending on the waste factor accrued during fabrication.
Place the entire pre-cut fiberglass to be used on a digital scale to determine the fabric to resin weight ratio. Measuring by weight will ensure accurate composite fabrication and repeatability, rather than using OSY (ounces per square yard) or GSM ( grams per meter square ) data.
THE USE OF A WEIGHING SCALE IS HIGHLY RECOMMENDED
Purchase this scale with any of our product offering and the shipping cost of the scale is free.
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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 safety factor. This will ensure that the fabricated laminate will be below 40% resin content depending on the waste factor accrued during fabrication.
Place the entire pre-cut fiberglass to be used on a digital scale to determine the fabric to resin weight ratio. Measuring by weight will ensure accurate composite fabrication and repeatability, rather than using OSY data.
Typical fabric weight regardless of weave pattern
1 ounce per square yard is equal to 28.35 grams
1 square yard equals to 1296 square inches (36 inches x 36 inches)
FOR EXAMPLE
1 yard of 8-ounces per square yard (OSY) fabric weighs 226 grams
1 yard of 10-ounces per square yard (OSY) fabric weighs 283 grams
Ounces per square yard or OSY is also known as aerial weight, which is the most common unit of measurement for composite fabrics. 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
OR
fw= fabric weight rc= target resin content rn=resin needed
MASTER EQUATION (fw/60%)x(40%)=rn
FOR EXAMPLE 1 SQUARE YARD OF 8-OSY FIBERGLASS FABRIC WEIGHS 226 GRAMS (226 grams of dry fiberglass / 60%) X 40% = 150.66 grams of resin needed So for every square yard of 8-ounce fabric, it will need 150.66 grams of mixed resin.
Computing For Resin And Curing Agent Amount 150.66 grams of resin needed for 1 square yard of fiberglass fabric MIX RATIO OF RESIN SYSTEM IS 2:1 OR 50 PHR (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)= 3/3 150.66 x 66.67%= 100.45 grams of Part A RESIN 150.66 x 33.33%= 50.21 grams of Part B CURING AGENT 100.45 + 50.21 = 150.66 A/B MIXTURE
GENERAL LAY-UP PROCEDURE Apply the mixed resin onto 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 onto a layer of the prepared 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 pockets unhindered and uniformly disperse the impregnating resin throughout the fiberglass.
HAND LAY-UP TECHNIQUE
Eliminating air entrapment or void porosity in an epoxy/fiberglass lay-up process
Fiberglass Hand Lay Up For Canoe and Kayak Building
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Basic Hand Lay-up Fiberglassing
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VACUUM BAGGING PROCESS For performance critical application used in aerospace vehicles, composite framing for automotive vehicles and marine vessels, a process called 'Vacuum Bagging' is employed to ensure the complete consolidation of every layer of fabric.Vacuum Bagging
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Similar to the Vacuum Bagging Process where the negative pressure is used to apply consolidation force to the laminate while the resin cures, the resin is infused into the fabric lay-up by sucking the impregnating resin and thus forming the composite laminate.
The VARTM Process produces parts that require less secondary steps, such as trimming, polishing or grinding with excellent mechanical properties. However, the vacuum infusion requires more additional or supplemental related equipment and expendable materials. So the pros and cons of each presented composite fabrication process should be carefully determined to suit the user's capabilities and needs.
Please view the following video demonstration which explains the process of Vacuum Infusion or VARTM process.
CARBON FIBER VACUUM INFUSION WITH EPOXY RESIN - VACUUM BAGGING WITH MAX 1618 EPOXY RESIN - YouTube
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TESTING FABRIC TO RESIN RATIO VIA RESIN BURN OUT
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ULTIMATE COMPRESSIVE STRENGTH
ULTIMATE COMPRESSIVE STRENGTH TEST
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6500 pounds to failure / 0.498 square inch = 13,052 psi Maximum Compressive Strength
SPECIMEN EXAMINATION AFTER COMPRESSION TEST
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EVERYTHING YOU NEED TO MEASURE, MIX, DISPENSE OR APPLY