CANZ Glossary of Terms

In the context of FRP, primarily useful as a cleaning solvent for removal of uncured resin from applicator equipment and clothing. Very Flammable Liquid.

Any number of materials used to modify the properties of polymer resins. Categories of additives include reagents, fillers, viscosity modifiers, pigments, UV absorbers, flame retardant materials, waxes, promoters etc.

A bonding substance that creates a molecular attraction, holding two surfaces together.

Failure in an adhesive joint that occurs between the adhesive material and the adherend; contrast with Cohesive Failure.

To cure at room temperature with addition of catalyst but without assistance of heat and pressure.

Resin which cures with a tacky surface (air inhibits its surface cure).

Wrinkling of gel coat film resembling alligator hide; caused by poor cure at time of contact with styrene from a subsequent or preceding coat.

Additive used to provide special flammability characteristics to a polyester.

Aromatic polyamide used to make high strength fibres, commonly known as Dupont Kevlar

Spray method which should normally be avoided as it consists of directing spray passes by gun rotation at the wrist (arcing), as opposed to conventional stroke from shoulder, keeping fan pattern perpendicular to mould.

Weight of a fibre reinforcement per unit area (width times length) of tape or fabric.

Lowest temperature required to initiate or cause self sustained combustion in absence of a spark or a flame.

Moulding technique in which an entire composite assembly is placed in an autoclave (or closed vessel with pressure/heat capability) at 50 to 10 psi pressure to consolidate the laminate by removing entrapped air and volatiles.