Features of Pro-Seal 872
Conductive lightning strike applications - Corrosion inhibitive
- 3-7% soluble chromates - Extrusion grade -
Low sag
P/S 872 Class B is a conductive lightning strike, corrosion
inhibitive sealant. It has a service temperature range from -67°F (-55°C) to 250°F
(121°C), with intermittent excursions up to 275°F (135°C). The cured sealant maintains
electrical continuity in a highly torqued fay surface for certain aircraft applications.
This material acts an effective barrier against the common causes of corrosion on
aluminum alloys or between dissimilar metals. The cured material is resistant to
intermittent exposure to both jet fuel and aviation gas.
P/S 872 Class B is a two part, aluminum filled, manganese
dioxide cured, polysulfide compound. The uncured material is a low sag, thixotropic paste
suitable for application by extrusion gun or spatula. It cures at room temperature to form
a resilient sealant having excellent adhesion to common aircraft substrates.
Tested are in accordance with
Lockheed STM40-114 Class B specification test methods.
Technical Data Sheet for P/S 872
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