PR1782B2 Packaging Systems Desothane Low Density Sealant 6 Oz Petroleum Base Liquid Black (Part A)

PR-1782 Class B-2 is a low-density aircraft fuel tank and general-purpose sealant designed for fillet sealing and aircraft fuselage sealing applications. It provides significant weight savings compared with traditional aerospace sealants while maintaining excellent flexibility and fuel resistance.

The B-2 formulation provides approximately 2 hours of application life, making it suitable for larger or more detailed sealing operations where additional working time is required.

Overview

PPG Aerospace PR-1782 Class B is a low-density, two-part, manganese dioxide-cured polysulfide sealant. It has a service temperature range from -65°F (-54°C) to 250°F (121°C).

The material is designed for fillet sealing of aircraft fuel tanks and other fuselage sealing applications. It can provide up to approximately 30% weight savings per unit volume compared with conventional sealants used for similar applications.

Once cured, PR-1782 maintains excellent elastomeric properties after prolonged exposure to jet fuel and aviation gasoline and provides resistance to limited contact with diphosphate ester-based hydraulic fluids.

The uncured material is a low-sag, thixotropic paste suitable for application using an extrusion gun or spatula. It cures at room temperature to form a resilient seal with excellent adhesion to common aircraft substrates.

Features & Benefits

• Low-density formulation helps reduce installed aircraft weight
• Up to approximately 30% weight savings compared with traditional sealants
• Designed for aircraft fuel tank and fuselage sealing applications
• Two-part, manganese dioxide-cured polysulfide formulation
• Low-sag thixotropic consistency for fillet sealing
• Excellent adhesion to common aircraft substrates
• Resistant to prolonged exposure to jet fuel and aviation gasoline
• Resists limited contact with diphosphate ester-based hydraulic fluids
• Approximately 2-hour application life

Specifications

• Product: PR-1782 Class B-2
• Manufacturer: PPG Aerospace / PRC-DeSoto
• Product Type: Low-Density Aircraft Fuel Tank and General-Purpose Sealant
• Container Size: 6 oz
• Container Type: SemKit®
• Part A Color: Black
• Part B Color: Blue
• Mixed Color: Mid Grey
• Mixing Ratio by Weight: Part A : Part B – 12:100
• Application Life: Approximately 2 hours at 25°C (77°F), 50% RH
• Tack-Free Time: Less than 7 hours at 25°C (77°F), 50% RH
• Cure to 35 Shore A: Approximately 10 hours at 25°C (77°F), 50% RH
• Cured Specific Gravity: Approximately 1.11
• Application Method: Extrusion gun or spatula
• Service Temperature: -65°F (-54°C) to 250°F (121°C)

Technical Information

• Airbus AIMS 04-05-001
• Airbus AIMS 04-05-012
• Airbus AIMS 04-05-014
• Airbus AIMS 04-05-015

Safety: Refer to the current PPG Safety Data Sheet and Technical Data Sheet before handling or applying this product.