These VCS-type flange Insulation Kits are designed to seal off all electrical conductivity and foreign surface effects on flanged joints. Their insulation capability will mitigate galvanic corrosion, leakage, and environmental degradation of pipelines and associated industrial systems. These kits can be used in severely corrosive environments and are a good assurance against early fai... https://goodrichgasket.com/Flange-Insulating-Gasket-Kit