Description
3202 Mushroom Seal is the original LRTM mold seal. Made from 100% green silicone rubber that is designed to be resistant to damage in a production molding operation, yet resilient enough to conform to the mold flange profile providing a vacuum-tight seal.
Normally used as the primary mold seal preventing the resin from leaving the mold cavity and entering the high vacuum area of the perimeter flange used for mold closure clamping.
Designed to fit into a mold groove that is 10 mm wide by 3 mm deep for the head compression to be between 1mm to 1.5 mm. Then the 5 mm x 10 mm stem is centered for the stem so the actual groove is a "T" shape.
Compatible with all poly and vinyl esters, epoxies, urethane, molding resins. Designed to handle molding temperatures up to 160 F, for higher mold temperatures choose the (8095) Red Mushroom Seal of the same profile size yet designed to handle up to 225 F molding temperatures.
Note:
The seal compression for the 3202 Mushroom Seal can be adjusted by first inserting a wire or plastic cord in the stem groove before inserting the seal stem, this prevents the stem from fully seating to be bottom of the groove allowing for adjustment of the seal head compression.
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