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> Kevlar 49 100% 38 in wide 6 oz. free epoxy resin offer
Kevlar 49 100% 38 in wide 6 oz. free epoxy resin offer
This is a very rare find since colored Kevlar Fabrics are typically hybridized with either fiberglass, carbon or a thermoplastic fiber.
The red and black strands are both Aramid or Kevlar providing excellent balance and ease of use. It is very supple and easily molded to shape. This Kevlar weave can be used for surfboards, kayaks, motorcyle fairings and other decorative applications where this unique color combination will stand out.
We acquired a limited quantity (3 each 100 yard per roll) from a special run, stock up on this very rare item.
If you wish to purchase more than what is available at this listing, please click on the following link to purchase from our store inventory.
THE MINIMUM CUT YARD IS 1 YARD OR 3 FEET IN LENGTH
FOR MULTIPLE YARD PURCHASE WILL BE CONTINUOUS IN LENGTH
MAX CLR-A/B CLEAR IMPREGNATING EPOXY RESIN
MAX CLR-HP AB CLEAR IMPREGNATING EPOXY RESIN
For multiple yard purchase, request for an invoice and
Kevlar is the Du Pont registered trademark for the genric Aramid type fibers.
It is one of the lowest density materials that demostrates high strength, high modulus organic fiber.
Its weight to strength ratio surpasses that of carbon fiber and fiberglass. It combines high tensile strength (43,000 PSI) and high modulus (19 million PSI) with light weight and toughness superior to other reinforcing fibers for plastics.
At cryogenic temperatures (-320°F.) performance is excellent with essentially no embrittlement or degradation of fiber properties. Kevlar 49 can offer both a significant weight saving and improved stiffness versus glass in addition to superior vibration damping and good impact resistance.
A kayak made with Kevlar 49, for example, weighs about 18 pounds while the weight of a comparable boat made with glass would be over 30 pounds.
The advantages over glass in small aircraft are similar - weight savings and improved impact resistance. For example, Kevlar 49 is used in a number of parts on the Lockheed L-1011 because of weight savings of up to 30% compared to similar parts made of glass. One unusual benefit of Kevlar is its "quietness". A cowling made of Kevlar will be quieter and less sensitive to engine vibrations than its glass or carbon fiber counterpart.
Epoxy resins such as our MAX CLR, MAX BOND, MAX GPE or MAX ULV can be used with this fabric and demostrates excellent compatibility.
MAX BOND LOW VISCOSITY 2 Gallon Kit
The use of polyesters resin is not recommended because of poor adhesion and compatibility with Kevlar or armid type fabrics.
Type of yarns Warp Yarn Kevlar 49, 1140 denier
Fill Yarn Kevlar 49, 1140 denier
The minimum cut length is 1 yard
(folded and packaged in sealed bag)
For multiple yard purchase, request for an invoice and
(3 feet lenght by 38 inches wide per unit)
Cut lenght greater than 10 yards will be supplied rolled on cardboard core
For our complete listing, please click the logo
OUR PHOTO SHARING SITE CAN BE VIEWED AT:
Hundreds of posted pictures from many other applications with our MAX EPOXY SYSTEM
Aircraft Advanced Composites, Marine and Boat Building, General Composites
Step One: Choose the best composite fabric to use for the application.
Fiberglass: 7781 or 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 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 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 laminate 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.
Heat cured epoxy systems demonstrates dramatically higher mechanical performance than room temperature cured epoxy resins. This type of resins demonstrates high heat resistance, are practically insoluble to any solvent and extremely high tensile and compressive strength. Its requirement of controlled elevated temperature curing limits its use to industrial users that have the ability to place the item in an oven or a controllable heat source.
Most heat cured resin will fall into two categories of heat curing.
These types of systems will typically consist of a Part A and Part B system similar to room temperature curing system. 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 or load will either be gummy or brittle almost glass-like. Another evidence of B-staged epoxy resin is that it 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.
This type of epoxy system will not polymerize 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.
PolymerProducts, The Epoxy Experts
For All Your Composite Fabric Needs
We Have Just Acquired Thousands Of Yards
· Aluminum and Phenolic Honeycomb Cores
Factory woven by one of the largest weavers and producers of composite fabrics for aerospace, marine, electronic and structural composite materials.
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.
For our complete listing, please click the logo
OUR PHOTO SHARING SITE CAN BE VIEWED AT:
Hundreds of posted pictures from many other applications with our MAX EPOXY SYSTEM
