Standard & Custom

Press Leaders

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Compression and Transfer Molding Equipment

A-B     C-D     E-F     G-H     I-J     K-L      M-N     O-P     Q-R     S-T     U-V     W-X
Glossary Terms E-F
Used in the Compression, Lamination and Transfer Molding Process

EPDM:

Ethylene propylene diene monomer.

EBONITE:

A hard rubber made by vulcanization of rubber with high levels (greater 30 parts) of sulfur, where the high hardness is due to the action of the sulfur.

FLATNESS:

The degree to which platens are designed to withstand deflection and maintain parallelism.

FLASH EXTENSION:

The distance flash extends beyond the part (after removal of a tear trim, but before any other operation to reduce or remove).

FLASH:

The material which flows beyond the part boundaries at the parting lines of the mold, or into openings, housing inserts, ejector pins, etc.

FLOW MARKS, LINES OR CRACKS:

Variants by degree with "cracks" the most severe of surface imperfections caused by imperfect flow of the raw compound during forming.

FORMULATION:

Kinds and proportion of ingredients for a mix, together with the method of incorporation. Also called recipe.