Welcome to Greene Tweed’s Semiconductor Chemraz® Website

Chemraz® FFKM seals are found throughout a broad range of mission-critical equipment in key process areas of the world’s semiconductor fabs, including etch, deposition, aqueous, electro-chemical (electroplating), and more.

This site provides quick and easy access to Chemraz® semiconductor information – including interactive tools, technical resources and documents, seal training, the latest product news, and an elastomer selection guide – your one-stop shop for everything Chemraz®.

For non-semiconductor Chemraz® information, visit the Greene Tweed website.