Fiberglass Tooling
This is an easy to use, medium weight cloth that is widely used in most scale modeling, rocketry and other RC fiberglass fabrication.
It is also suitable for marine boat building, surfboard construction, Kayaks and Canoe
Construction and Specifications Data
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Physical Propertie |
Metric Units |
US Units |
|
Thickness |
254 Microns |
10 Mils |
|
Weave Type |
Plain |
Balanced |
|
Fabric Weight |
|
7.25 Ounce/Square Yard |
|
Tensile Impact |
149 J/Cm |
280 Ft-Lb/In |
|
Breaking Strength |
160 J/Cm |
300 Ft-Lb/In |
|
Yarn Construction |
ECG 75/13 Warp |
ECG 75/13 Fill |
|
Count |
14 |
16 |
Typical Packaging
USe This Resin System For This FIberglass
For Marine Boat Building And Repairs
MAX BOND LOW VISCOSITY
AVAILABLE KIT SIZES
32 OUNCE KIT | |
64 OUNCE KIT | |
1 GALLON KIT | |
2 GALLON KIT | |
10 GALLON KIT |
Resin System For Scale Modeling
MAX CLR A/B
Water Clear Transparency, Chemical Resistance, FDA
Compliant For Food Contact, High Impact, Low Viscosity
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24-Ounce Kit |
|
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48-Ounce Kit |
|
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96-Ounce Kit |
|
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1.5-Gallon Kit |
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 | |
MAX GRE A/B 96-Ounce Kit |
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 | |
MAX HTE A/B 40-Ounce Kit |
Guidelines For Fiberglass Lay-Up
- Lay out the fabric and pre-cut to size and set aside
- Avoid distorting the weave pattern as much as possible
- For fiberglass molding, ensure 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 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 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.
https://www.ebay.com/itm/222630300203
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
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, fewer 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
