Gasket makers polyester urethane fuel resistant size 2 ounces Gasket dressing and flange sealant, f or superior fluid resistance, withstands extreme temperature changes without hardening. Non-setting, non-hardening, remains tacky even with rapid changes in temperature, enabling repeated assembly and disassembly of p arts. Suitable as either a gasket maker or dressing. Seals surface imperfections between metal parts. Operating temperature range of -60 to 500F (-50 to 260C).