P/S 870 Class C is a corrosion inhibitive sealant. It
has a service temperature range from -65°F (-54°C)
to 250°F (121°C), with intermittent excursions up
to 275°F (135°C). This material acts as an effective
barrier against the common causes of corrosion on
aluminum alloys or between dissimilar metals. The
cured sealant maintains elastomeric properties after
limited exposure to both jet fuel and aviation gas.
P/S 870 Class C is a two-part, manganese dioxide
cured polysulfide compound. The uncured material is designed for roller and faying surface sealing
applications. It cures at room temperature to form a
resilient sealant having excellent adhesion to common
aircraft substrates.
The following tests are in accordance with MILPRF-81733 Type IV and other OEM specifications test
methods
