PR-1770A is a two-part, high temperature resistant, brushing sealant for use over a temperature range of -55°C to +180°C, with outstanding resistance to aircraft fuels and lubricating oils and resistance to degradation by phosphate ester type hydraulic oils.
PR-1770A is a manganese dioxide cured sealant based on Permapol® P-5 liquid polymers, a chemically modified, improved class of polysulphide polymers covered by US Patent 4,623,711. The uncured material is a thick liquid suitable for application by
brush or roller. The cured sealant maintains excellent elastomeric properties after prolonged exposure to aircraft fuels. |