Astra Seals®

ASTRA SEAL® IS A UNIQUE EXTREME TEMPERATURE AND PRESSURE SEALING SOLUTION DEVELOPED BY NES - THERE IS SIMPLY NO BETTER SEAL FOR CRYOGENIC APPLICATIONS.

Created by an Aerospace Engineer to combat the harsh environments associated with liquid oxygen and the problems associated in sealing other cold media, such as liquid nitrogen and hydrogen, the Astra Seal® copes perfectly with the extreme low temperatures which make most O Rings brittle, which in turn leads to failure.

Extended rigorous testing in harsh environments has shown that NES Astra Seal® outperforms FFKM for compression set.