• March 05. 2026

JST’s advanced HNBR compound, designated by material code H6390 (Durometer 90), is a premium elastomer specifically formulated for demanding rubber sealing applications. Renowned for its exceptional durability, high tensile strength, and chemical resistance, this material sets a high standard for reliability in critical environments.   Key Properties & Certifications: NORSOK M-710 C...

• March 12. 2026

In heavy machinery and hydraulic presses operating above 250 bar, sealing reliability determines system performance. The critical question: Are compound seals (like Glyd Rings) more reliable than traditional single seals?   Single Seals: Three Fundamental Limitations   Standard O-rings and U-cups struggle in high-pressure environments for three reasons: Extrusion: High pressure forc...