Protective Systems
Lewcott has been the pioneer in developing and manufacturing armor composite prepreg materials. Since 1965, Lewcott has been a primary source of armor prepreg for U.S. military programs for helmets, rigid body armor, vehicular and flight armor. Only Lewcott can supply a full line of armor composite materials and provide development assistance for new.
The areas of applications/ballistic threats are:
Ø personnel helmets
Ø body armor
Ø vehicle armor
Ø armor panels
Data sheet available by clicking bold link
LC799-K2914
A 14 oz./yd2 2x2 basket weave Kevlar® fabric coated with our LC799 resin system. Suitable for laminating at equivalent weight in areal densities above 5 lb/ft2.
Nylon and other fiber / fabric materials may be available for unique threat level performance pressures from 50 PSI to 250 PSI, at temperatures ranging from 310º to 350ºF. Ballistic resistance of laminates is significantly better than either E-glass or nylon based structures. Conforms to MIL-H-44099 and MIL-H-44117 specifications.
LC799-K2916
Kevlar® fabric woven to simulate woven roving, weighing 16 oz./yd2 and coated with our LC799 resin systems.
Suitable for laminating at pressures from 50 PSI to 250 PSI, at temperatures ranging from 310º to 350ºF. Preferred to 2914 in ceramic composites. Available in 1500 and 300ºDenier.
Conforms to MIL-L-62474B specifications.
PSR133-HJ1 Qualified
A 24 oz./yd2 S-2 glass high strength silane finished woven roving, impregnated with phenolic resin. Provides comparable ballistic resistance to LC799-K2916.
PVB modified phenolic aramid fiber reinforced systems at a lower cost. This system has excellent fire resistance. Conforms to MIL-L-64154 specification. Suitable for laminating at pressures from 20 PSI to 100 PSI, at temperatures ranging from 290º to 320ºF. Vacuum bagging is possible with higher than normal resin content.
LC310-K4915
Kevlar® fabric woven to simulate woven roving, weighing 16 oz./sq. yd., produced with high modulus aramid fiber, impregnated with LC310 resin.
Suitable for laminating at pressures from 30 PSI to 200 PSI, at temperatures ranging from 270º to 300ºF. Utilized in ceramic composites and in aircraft crash seats.
LC421-K745
Lewcott’s new vinyl ester resin system coated on 13.2 oz/yd2 Kevlar® fabric, offers unique performance against demanding threat levels.
EP200
EP200 is a low temperature curing, rubber modified epoxy that cures in the 190ºF to 210ºF range. EP200 prepreg has the ability to snap cure at 275ºF in 10 minute dwells. Snap cure laminates have low void content and retain nearly identical performance properties. EP200 is self-adhesive to aramid honeycomb as well as other sandwich cores and can be used for a wide variety of structural applications.
EP200 HT
EP200 HT is an advanced epoxy prepreg system that is a low temperature curing, rubber modified epoxy that offers a wide variety of curing capabilities.
EP202
EP202 is a low temperature curing, rubber modified epoxy that offers a wide variety of curing options. EP202 prepreg has the ability to snap cure at 275° F in a 20 minute dwell as well as cure at 170°F in five hours. EP202 is flame resistant and displays a Tg of 300°F+ without requiring a post cure. EP202 can be used for a wide variety of structural applications.
EP255
EP255 is a low temperature curing, toughened epoxy that cures in the 235ºF to 275ºF range. It is self-adhesive to aramid honeycomb and can be used for a wide variety of structural applications. It is self-extinguishing, passing the 60 second vertical ignition test listed in FAR 25.853.
EP255N
A variant of EP255, EP255N has increased mechanical performance over EP255. EP255N is a modified epoxy that is cured in the 235ºF to 275ºF temperature range. It is self-adhesive to aramid and aluminum honeycomb. EP255N exhibits excellent strength properties and can be used in a wide variety of structural and aerospace applications. EP255N meets the requirement of MIL-R-9300B, Type 1. EP255N has excellent resistance to ethylene glycol, hydrocarbon fluids, and oils, Skydrol and water.
EP255 Film Adhesive
Based on the EP255 epoxy prepreg resin system, this supported film adhesive is designed for use in a variety of bonding applications such as metal to metal, composite to core or metal to core. Sandwich constructions include aramid, aluminum and various foams.
Kevlar® based armor structures are recommended where weight is critical and cost is secondary.
Available forms: Up to 60” wide Broadgoods, E-glass, S-2 glass, Aramid and Carbon.