JST produces elastomer seal, material includes HNBR, NBR, FKM, AFLAS.

There are lots of factors affecting an elastomer seal's performance, such as the chemical reactivity of the elastomer seal , working temperature, working pressure and working medium will influence the sealing performance.

To make sure seal with no leakage and suitable for high temperature, lower temperature, high pressure, H2S/CH4/CO2 working conditions, JST elastomer seals has passed H2S fluid immersion test and PR2 test. Below is one example of our HNBR85 compound.

One of the strength of JST lies in the quality of our our material brands.

For example, the durability range formulated to offer excellent resistance to both explosive decompression and sour gas,as well as impressive high and lower temperature capabilities. Operators using endurable seals can expect to improve their productivity by reducing maintenance and equipment downtime.