Use And Care Manual

Glossary
Thermal Expansion The increase in a length of a plastic
part due to a change in temperature.
Thermoplastics A group of plastics which can repeatedly
be softened by heating and hardened by cooling.
Thermosetting Plastics A group of plastics which,
having been cured by heat, chemicals, or other means,
are substantially infusable and insoluble. They are
permanently hardened.
Weld Line (Knit Line) A term used to describe a mark
on a molded plastic part formed by the union of two or more
streams of plastic flowing together.
Glossary
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Glossary