Gasket Sealant for Sulfuric Acid Service

Gents:

we have a sulfuric acid system constructed of PVC. one of the flanges, PVC with a soft viton gasket, is exhibiting minor leakage. we have installed a new gasket to no avail, and believe that one of the mating surfaces is slightly damaged. of course, the PVC material keeps us from "cranking down" too tight.

i think a gasket sealer is worth trying, but all of my supplies shy away from "sulfuric acid". a web search has also left me dry.

any general thoughts on the proper sealant material?

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Thomas G Laupa PE
Senior Engineer - Nalco Company
Office Address: 1601 Diehl Road, Naperville, IL, 60563 Courier Address: 1003 Remington, Fort Collins, CO, 80524 970-227-5127
800-493-5009 fax Received on Tue Oct 04 16:47:00 2005