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Aircraft Spruce & Specialty Co.
Corona, CA | Chicago, IL
Wasilla, AK | Peachtree City, GA
Brantford, ON Canada
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PROSEAL PR-1776M CLASS B LOW WEIGHT FUEL TANK SEALANT
MFR Model# PR1776-M B2 QT
PR-1776M Class B is a low density, high temperature aircraft integral fuel tank sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C), with very limited excursions up to 360°F (182°C). This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. It offers as much as a twenty percent weight savings, per unit volume, over traditional sealants used for these purposes. The cured sealant maintains excellent elastomeric properties after prolonged exposure to aircraft fuels both jet fuel and aviation gas, and will resist limited contact to diphosphate ester based hydraulic fluids.
PR-1776M Class B is a two-part, manganese dioxide cured Permapol® P-5 modified polysulfide. 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.
• Low Weight, 20% lower than standard sealants
• Faster Curing
• Easier to apply
• Excellent Adhesion to Titanium and Stainless Steel
• MnO2/Permapol® P-5 polysulfide
• Service temperature -65 to 250 degrees Fahrenheit
• Shelf Life: 9 months
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