See also General Information under Nylon 6,6

General Description: The addition of glass fibre to nylons leads to very significant increases in strength, stiffness, heat distortion temperatures, abrasion resistance and dimensional stability, though properties can be anisotropic - including mould shrinkage, leading to potential distortion. In the case of nylon 6,6 - unlike many polymers - this is achieved without loss of impact strength, though elongation to break is, as usual, reduced very substantially. Glass-reinforced nylon is commonly coloured black.

Applications include many engineering components including "under-bonnet" automobile parts and most components on wind-surfers.