TITESEAL by GUNK T5516 No. 55 Gasket and Joint Sealing Compound - 16 oz. TITESEAL is a local family owned company based out of Charlotte, NC. For more than 75 years, LIQUID WRENCH products, developed by the people who use them, has earned the trust of hard-working tradesment and the active DIYer through consistent, superior performance and a commitment to innovation.TITESEAL Excellent for leak-proofing threaded, flanged or other assembly line connection work Special liquid compound prepared for easy application Will seal most gases Use to seal gaskets or treads on equipment or pumping lines