Genuine Ford Fluid ZC-30-A Silicone Gasket Remover - 12 oz. Specifically formulated to soften cured RTV and residue left from multi-layer steel gaskets Allows removal of gasket residue with a plastic or wood scraper Safe for aluminum and cast iron gasket surfaces Assures a safe cleaning process without risk of damaging the sealing surface Eliminates the need for metal tools or abrasives for removing gasket residue