UNIDIRECTIONAL KEVLAR

This is a unique unidirectional reinforcing material which combines the benefits of Kevlar 49 with Owens-Corning Fiberglass S-2 Glass. It is designed for use in laminates which must have high modulus or stiffness and tensile strength combined with low weight or density. The material is specifically constructed to enhance properties of wet-out behavior, bondability and impact strength in a hand laid-up composite. As compared with woven fabrics of pure Kevlar, it should produce laminates with better fiber-resin ratios and superior stiffness. The integrity of this product is maintained through very fine, adhesive coated Dacron fill yarns that are bonded to, but not interwoven with, the unidirectional fibers. Only vinyl esters or epoxies should be used as impregnating resins. The presence of the S-2 Glass enables the fabricator to determine visually when the material is properly wet out. Resin bond is far superior to the glass than to the Kevlar. This means increased resistance to delamination. Also the presence of the S-2 Glass even in such a relatively small amount increases the impact strength of the laminate significantly. In application, it is important that the fabricator does not confuse the appearance of the cross-direction adhesive binder with air bubbles. The impregnating resin will soften this adhesive and it will flow slightly. The adhesive shows up as milky areas on both sides of the fabric within the finished laminate. A gel coat or paint covers these areas effectively. (12" Wide)

Description Part No. Price Buy UNIDIRECT KEVLAR 12" # KS-400 01-00340 $4.55