Formed-in-Place Gasketing With Silicones

Formed-in-place gasketing is a versatile concept, which offers cost reduction and improved sealing performance in small engines. Easily automated, the process can lower both material and labor costs in high volume production.

The concept itself is simple. A paste-consistency silicone rubber is applied to the flange area of the parts to be sealed. The parts are then assembled, and the silicone paste is squeezed into every area to fill large or small gaps between the mating surfaces as the parts are drawn together. The paste then cures to form a durable rubber seal which is stable from -100 to 450 F.