Heavy Weight Fiberglass Fabric For Structural Construction
Warp Yarn: ECG 75 1/2 EC9 68 x2
Fill Yarn: ECG 75 1/2 EC9 68 x2
(3 Feet Long By 50 Inches Wide)
For multiple yard purchase, request for an invoice or total before paying and
Also available in full rolls at wholsale price
Please inquire and we will list the full roll price and availability
The minimum cut length is 1 yard or
3 feet length by 50 inches wide
(folded and packaged in sealed bag)
Cut lenghts greater than 10 yards will be supplied rolled on cardboard core
Note how the fabric can be folded without separation or weave distortion.
8 Harness Satin Weave is one of the most widely used weave style used in the composites industry.
This style fabric is one of the easiest fabrics to use and it is ideal for laying up cowls, fuselages, ducts and other contoured surfaces with minimal distortions.
This weave style is woven using one yarn carried over several yarns before going under a single yarn. The fabric is more pliable and can comply with complex contours and spherical shapes.
Volan Finished cloths exhibits faster and complete wet out with most thermoset resins for less air bubble entrapment and porosity. Cured laminates tend to dent rather than crack making it an ideal fabric for high impact applications. Use this fiberglass cloth when high strength parts are desired and where curved and contoured parts are to be produced.
It is ideal for structural construction, composites reinforcement, mold making, aircraft and auto parts tooling, marine and other composite lightweight applications.
Volan is also known as Chrome Finish due to presence of chromium applied to glass fibers . The Volan sizing or finish is applied to fiberglass fabric during the manufacturing process to give good bonding to epoxy, vinyl ester and polyester resins. If used with clear resins, Volan cloth will appear to have a slight greenish tint.
Aircraft Advanced Composites, Marine and Boat Building, General Composites
Click on the picture to pause or play slide show
Wood for kayak reinforcing using MAX CLR-HP with 8 Harness Satin Weave Fiberglass
MAX CLR HP used for this construction
Step One: Choose the best composite fabric to use for the application.
Fiberglass: 8 harness satin weave style
This style fabric is 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.
Other factors when selecting the proper composite fabric
In this most simple weave pattern, warp and fill yarns are interlaced over and under each other in alternating fashion. The plain weave provides good stability, porosity and the least yarn slippage for a given yarn count.
The mock leno weave is used where relatively low numbers of yarns are involved. The leno weave locks the yarns in place by crossing two or more warp threads over each other and interlacing with one or more filling threads.
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.
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.
This twill weave is more pliable than the plain weave and has better drapability 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.
Chrome Finishes (Volan A) F-16 & F-3
Heat cleaned fabric is saturated in a methacrylate chromic chloride solution, cured, and washed to remove any soluble salts. Both F-16 and F-3 are Volan type finishes with F-3 being a high chrome content version. Used with polyesters, phenolics, and epoxies, F-16 and F-3 fabrics make a light green laminate.
Step Two: Choose the best epoxy resin system for the job
The principal role of the resin is to bind the fabric into a unitized 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.
MAX BOND LOW VISCOSITY FOR MARINE APPLICATIONS
MAX GPE FOR GENERAL CONSTRUCTION LOW COST APPLICATIONS
MAX CLR HP CRYSTAL CLEAR HIGH PERFORMANCE APPLICATION
Step Three: Proper Impregnating Of Fiberglass, Carbon Fiber, Kevlar And Other Composite Fabric Technique
* 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 needed are ready and within reach
Mix the proper amount of resin needed
Over saturation or starving the fiberglass or any composite fabric will yield poor mechanical performance.
Don't how much resin to use to go with the fiberglass?
A good rule of thumb is to calculate 65% fiberglass to 35% resin by weight, this is the optimum ratio used in high performance prepreg (short for pre-impregnated fabrics) typically used for aerospace and high performance structural application.
If a scale is available, measuring by weight will insure better composite fabrication and repeatability.
Place the entire precut fiberglass to be used on a scale and determine the weight. (FW)
1 yard of this 18-ounce, 50 inch wide fabric is 1.12 pounds or 511.3 grams
(Ounces per square yard also know 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 used divided by 60%) and then multiply it by 40% = weight of mixed resin needed
(511.3 grams of dry fiberglass / 60%) X 40% = 340.9 grams of resin needed for every 1 yard, 18-ounce, 50 inch wide fiberglass
Common Factors Of 100% Solids (Undiluted and unfilled epoxy resin)
1 gallon of resin = 4239 grams (1.12 g/cc)
1 fluid ounce of resin = 33.17 grams
So for every yard of this 18 ounce 50 inch wide fabric, you will need 10.2 fluid ounces of mixed resin
Apply the mixed resin unto the surface and then lay the fabric and allow the resin to saturate the fabric.NOT THE OTHER WAY AROUND
(This is the most common mistake which yields poorly made composites)
By laying the fiberglass unto a film of resin, less air bubbles are entrapped during the wetting-out process.
Air is pushed up and outwards instead of forcing the resin through the fabric which will entrap air bubbles
This technique will displace air uniformly through the fiberglass with minimal mechanical agitation or spreading.
Given enough time and the proper surface treatment, any dry fabric will equalize the distribution of the applied resin naturally thus creating less air bubbles to be entrapped within the laminant. It is then very important that the proper viscosity, working time and
Air voids or porosity within the laminant is typically where failure
(fracturing or tearing) propagates when load is applied.
Note the slide show presentation and notice how the fabric almost becomes invisible or transparent.
This demostrates the ideal saturation of the composite reincorfcement.
PLACE CURSOR ON THE PICTURE TO PAUSE AND PLAY SLIDE SHOW
Room Temperature Cured Epoxy Resins
Clean up excess resin run off before it has a chance to set-up using a rag dampened with acetone or MEK.
PolymerProducts, The Epoxy Experts
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CLICK ON THE PICTURE TO PAUSE SLIDE SHOW
Other Fabric Weave Types And Finishing Available
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.
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