Sour service compatibility remains critical for RGD resistant HPHT seals. H2S concentrations up to 10% cause embrittlement in standard elastomers. Qualified compounds resist sulfide stress cracking while maintaining RGD performance. API 6A FF/HH classification validates materials for severe sour environments. This dual resistance enables safe extraction from high-sulfur reservoirs, pr... https://globalsealstech.com/product/rgd-rapid-gas-decompression-o-rings/