PPG PR1776 C-2 Low Weight Fuel Tank Sealant
PPG PR1776 Class C is a low density, high temperature, aircraft-integral, two-part fuel tank sealant. Designed for brush sealing of fuel tanks and other aircraft fuselage sealing applications, the cured sealant maintains excellent elastomeric properties after exposure to both jet fuel and aviation gas.
Data Sheets
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Product Information
It is a manganese dioxide cured, Permapol P-5 polysulfide compound. The uncured material is a roller grade liquid suitable for application by brush, extrusion gun or spatula.
It has a service temperature range of -54°C (-65°F) to 121°C (250°F) with intermittent excursions up to 182°C (360°F). It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates.
This product offers up to 20% weight savings per unit volume over traditional sealants used for its purposes. It will also resist limited contact to diphosphate ester based hydraulic fluids.
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