Ultra grey gasket former. Grey. 99 g. Special heat-resistant hard sealant, non-squeezing out of flanged joints in case of strong tightening. It was developed specially for Japanese cars. Operating properties exceed similar ones set by manufacturers. It has unique resistance to oils and anti-freezes, does not damage oxygens and does not cause corrosion. The operating range: from -54°C to +343°C. Application. Thoroughly clean the surfaces. Apply it on the surface in an even continuous layer, looping around the bolt holes. Assemble the unit before the product dries up. The complete curing is in 24 hours.