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Stockwell Elastomerics, Inc.
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Stockwell Announces Silicone Foam Port Plugs for Environmental Test Chambers

PHILADELPHIA —Stockwell Elastomerics (www.stockwell.com) recently announced the availability of silicone foam port plugs for environmental test chambers in three standard sizes to fit 3-inch, 4-inch, and 6-inch diameter openings.

Stockwell’s E-Plug™ Chamber Port Plugs are available in semi-custom shapes and can be cut quickly from pre-made bun stock for fast delivery, according to a company release. The plugs are fabricated from lightweight silicone foam with a flexible closed cell skin surface on one side. And they are designed to press fit into access openings on environmental test chambers to seal against air, humidity, temperature escape, or ambient air entry into the testing environment.

Standard E-Plugs™ are produced from 4-inch thick lightweight silicone foam with a 0.125-inch thick closed cell silicone foam skin on one side. Silicone foam remains flexible and resilient at temperatures from -67°F to +392°F. The materials are also inherently flame retardant to address facility safety concerns. Test engineers and laboratory managers benefit from reduced downtime when replacements can be supplied from off the shelf standard sizes.

Semi-Custom E-Plugs™ are fabricated quickly from pre-made 4-inch thick silicone foam sheets with skin on one side. Options for Semi-Custom E-Plugs™ can include reinforced silicone pull handles, internal concentric cuts to facilitate cables, sealed side edges for high humidity requirements, and ESD edge coating to reduce static build-up. Each of these semi-custom features can be developed in discussions with Stockwell Elastomerics’ Applications Engineering team.

Stockwell Elastomerics’ core competence is the fabrication and molding of silicone rubber and similar high performance elastomers. On-site production capabilities include adhesive lamination, slitting, die cutting, water jet cutting, and custom fabrication and molding.