CANZ Glossary of Terms

Laminate defect that occurs due to mechanical or thermal stress and is characterised by separation between laminae.

To remove a part from a tool or a tool from an intermediate model.

A comparison of weight per volume, measured in pounds per cubic foot, grams per litre or pounds per gallon.

Limiting – value for material property that can be used to design structural or mechanical system to specified level of success with 95 per cent statistical confidence.

Lubricant for spray equipment.

Non conductor of electricity; ability of material to resist flow of an electrical current.

Accelerator used in conjunction with BPO catalyst, or as co-promoter for cobalt/MEKP systems.

Diluting (reducing or thinning) agent.

Capability of substance or part to maintain its shape when subjected to varying forces, moments, degrees of temperature and moisture, or other stress.

Accelerator used in conjunction with BPO catalyst; more effective than DEA.

Small sunken dots in gel coat surface, generally caused by foreign particle, air void, or catalyst droplets in gel coat or laminate.

Homogeneous mixture of suspended solid particles in liquid medium.

A change in shape from that which is intended. Wavy gel coat surface reflection often found in conjunction with print-through. Commonly caused by a problem in laminating system.

Extra layers of reinforcement for added stiffness or strength where fasteners or other abrupt load transfers occur.

Leaking, sagging and puddling of laminating resin from reinforcement.

Ability of fabric (or prepreg) to conform to shape of contoured surface.

Laminate defect that occurs during moulding process and is characterised by dry, unwet fibres that have never been encapsulated by matrix material.

A mould made by casting over or duplicating another article.