PR-1770 Class C is a two-part, high-temperature faying surface sealant for use from -55 °C to +180 °C, with outstanding resistance to aircraft fuels and lubricating oils and resistance to degradation by phosphate ester hydraulic fluids. It is a manganese dioxide cured sealant based on Permapol® P-5 modified polysulphide polymers; the uncured sealant is a thick liquid applied by brush or roller.
Features
- Service temperature -55 °C to +180 °C
- Retains excellent elastomeric properties after prolonged exposure to aircraft fuels
- Mixing ratio Part B : Part A = 10 : 1 by weight; mixed colour dark grey
Applications
- Faying surface sealing in aircraft structures
Notes
- Typical properties tested in accordance with AIMS 04.05.001
- The dash number indicates application life in hours (e.g. C-12: 12 hours)
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