Poly Seal Industries

Poly Seal IndustriesRequest A Quote

Berkeley, CA

Prototype to production, we produce standard molded rubber parts and custom molded rubber items. Standard products include bumpers, bushings, grommets, mounting feet, stoppers and suction cups. Custom products include vibration absorbers, rapid transit train track fasteners and more.

Rubber Molding Power Pages

Compression Molding

Compression Molding

Molding is a manufacturing process that uses a mold - the latter being a solid container used to give shape to a piece of material. It is a forming process. The form is transferred from the mold to the material by...

Rubber Injection Molding

Rubber Injection Molding

Rubber injection molding is when uncured rubber is transformed into a usable product by injecting raw rubber material into a mold cavity made of metal. The applied pressure produces a chemical reaction like...

Rubber Molding

Rubber Molding

Rubber molding is a process of transforming uncured rubber or an elastomer into a usable product by transferring, compressing, or injecting raw rubber material into a metal mold cavity...

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