PPG Aerospace/PRC DeSoto® Fuel Tank Sealant - 6oz PS890B2-60Z

This aircraft fuel tank sealant is designed for integral fuel tank and fuselage sealing applications. It withstands temperatures from -65°F to 250°F, with short-term exposure up to 275°F. The cured sealant retains elastomeric properties even after extended contact with jet fuel and aviation gas, helping provide reliable performance in demanding conditions.

WARNING: This product can expose you to chemicals including carbon black (airborne, unbound particles of respirable size [= 10 micrometers]), titanium dioxide (airborne, unbound particles of respirable size) and toluene, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov.

Overview

P/S 890 Class B is an aircraft integral fuel tank sealant. It has 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.

Features & Benefits

• Thermal rupture resistance for reliable performance
• Low-temperature flexibility to help maintain seal integrity
• Corrosion resistance
• Flexibility with no cracks after bending 180 degrees over a 0.125 inch (3.18 mm) mandrel
• Resistance to hydrocarbons
• Repairable to itself and suitable for both freshly cured and fuel-aged fillets
• Outstanding resistance to water, alcohols and petroleum-based fluids
• Fungus resistant and non-nutrient

Specifications

• Color: Part A – Black, Part B – White, Mixed – Gray
• Mixing Ratio by Weight: Part A : Part B – 10:100
• Base Viscosity: 11,000 (1100) (Brookfield #6 @ 10 rpm), Poise (Pa-s)
• Application Life: 2 hours @ 77°F (25°C), 50% RH
• Cure Time: 14 days @ 77°F (25°C), 50% RH
• Cured Specific Gravity: 1.55
• Nonvolatile Content: 95%
• Tensile Strength: 300 psi (2069 kPa) – Standard cure, 14 days @ 77°F (25°C), 50% RH
• Elongation: 300% – Standard cure, 14 days @ 77°F (25°C), 50% RH