PPG PR1440 B-1/2 Aircraft Integral Fuel Tank Sealant

PPG PR1440 B-1/2 Aircraft Integral Fuel Tank Sealant

PPG PR1440 B-1/2 is a high-performance, low-density fuel tank sealant engineered for aerospace manufacturing and maintenance.It provides exceptional resistance to aviation fuels, hydraulic fluids, and lubricants, ensuring reliable long-term sealing of integral fuel tanks and fuselage structures.The product’s smooth, non-sag paste consistency allows easy application on vertical and overhead surfaces, while its fast cure time reduces downtime in production or MRO environments.PR1440 B-1/2 maintains excellent flexibility across wide temperature ranges and offers superb adhesion to aluminium, titanium, stainless steel, and other common aircraft substrates.

Key Features

• Two-part, manganese-dioxide-cured polysulfide formulation
• Outstanding fuel, oil, and hydraulic-fluid resistance
• Fast cure (½-hour application life) for efficient sealing
• Excellent adhesion to most aircraft metals and composites
• Low density for reduced overall aircraft weight
• Non-sag paste suitable for vertical and overhead joints

Typical Applications

• Sealing of integral and external aircraft fuel tanks
• Fuselage, wing, and panel joint sealing
• OEM assembly and MRO fuel system repair
• Protection against fuel and fluid ingress in structural cavities

Performance Benefits

• Excellent fuel impermeability and durability
• Maintains flexibility under vibration and thermal cycling
• Stable performance from −55 °C to +120 °C