The thermoforming environment requires high-temperature durable seals. Our 70-durometer silicone rubber cord is extruded in H, A and O cross sections to meet your thermoforming tool-building requirements.
Especially suited for pressure boxes, our “H” seal forms tighter compression for positive sheet-gripping and creates a double seal that eliminates blowouts and squeal.
The “O”, “H” and “A” sealing cords have a variety of applications (see chart).
Pressure Seal Application Recommendation: