860B1/6 Fuel Tank Sealant

860B1/6 Fuel Tank Sealant is a quick repair, aircraft integral fuel tank sealant with 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 is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas.

P/S 860 Class B-1/6 is a two-part, manganese dioxide cured polysulfide compound. The uncured material is a low sag, thixotropic past suitable for application by extrusion gun. It has excellent adhesion to common aircraft substrates when correctly primed with PR-148 Adhesion Promoter.

Surface Preparation:  Immediately before applying sealant to primed substrates, the surfaces should be cleaned with solvents.  Contaminants such as dirt, grease, and/or processing lubricants must be removed prior to sealant application.  Substrate composition can vary greatly. This can affect sealant adhesion, It is recommended that adhesion characteristics to a specific substrate be determined prior to application on production parts or assemblies.  See Tech Data Sheet for more detailed instructions.

860B1/6 Fuel Tank Sealant is supplied in two-part can kits and Semco® cartridges.
The storage life of P/S 860 Class B-1/6 is at least 6 months when stored at temperatures below 80°F (27°C) in original, unopened containers.

Storage Life: At least 6 months when stored at temperatures below 80°F (27°C) in original, unopened containers.

This product is safe to use and apply when recommended precautions are followed. Comply with all local safety, disposal and transportation regulations. Check the Safety Data Sheet (SDS) and label of the individual products carefully before using the products. SDS’s are available on request.

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