Gasket and seal manufacture.

A gasket has a specific job: create and maintain a sealed interface between two mating surfaces. It has to compress to a controlled percentage of its free height, spring back if the joint is opened and reclosed, and survive whatever fluid, temperature, chemical or vibration the interface throws at it.

The material choice is where most gasket work is won or lost. Silicone is excellent across a wide temperature range and for anything food, medical or electronics adjacent. EPDM handles water and mild chemicals well. Nitrile handles hydrocarbons. Fluorosilicone handles both and is expensive. We'll match the grade to the environment, not the other way round.

Geometry matters as much as material. A well-designed gasket has a controlled compression stop, a defined sealing lip or bead, and features that stop it extruding into places it shouldn't. A bad drawing plus a good material still gives you a leaking seal.

For most sealing jobs, compression moulding is the right route below tens of thousands a year. LSR takes over above that. Very thin flat gaskets sometimes make more sense die-cut from sheet — we'll flag that route if it fits.