Description

MRO and aviation engineers rely on PPG PR1440A-1/2 because it provides a fast, reliable seal for integral fuel tanks, fuselage joints and fillets on aircraft ranging from the most advanced military platforms to commercial airliners. Its two-part polysulfide formula resists aviation fuels, hydraulic fluids, oils and extreme temperatures. Ensuring structural integrity and safety for millions of passengers each year. Ground crews and AOG teams trust this sealant to reduce downtime, deliver precise application and maintain mission-critical performance in emergency repairs. That’s why PPG PR1440A-1/2 is a must-have for MRO stockrooms and AOG kits across the aviation industry.
Key Technical Specs for PPG PR1440A-1/2
Type: Two-part polysulfide sealant, manganese dioxide-cured.
Volume: 150?ml (0.15?L / 5.07?fl.?oz.) Semkit cartridge.
Common Uses: Sealing integral fuel tanks, fuselage joints, structural fillets and other critical aircraft seams.
Service Temperature Range: -54?°C to 121?°C (-65?°F to 250?°F), intermittent up to 135?°C (275?°F).
Chemical Resistance: Resistant to aviation fuels (Jet A, Jet A-1, avgas), hydraulic fluids, oils and water.
Adhesion: Strong to aluminium, titanium, stainless steel and composites.
Cure Time / Viscosity: Brushable, non-sag formula; cures at room temperature to form a resilient flexible seal.
Approvals & Specifications for PPG PR1440A-1/2

MIL-S-8802F: Type II, Class A-1/2
Boeing: BMS 5-26U, Type 2, Class A-1/2
Airbus: AIMS 09-00-002
Sikorsky: SS 8664
Bell Helicopter: 299-947-107
Hughes Helicopters: 6500126, Type 2
Aerojet: SPC-34162 Class 2-1/2
US Army Missile Command: MIS 30391, Type 1, Class 2
Typical Aircraft MRO / AOG Applications for PPG PR1440A-1/2
Sealing integral fuel tanks during routine maintenance or modification.
Repairing fuselage joints and fillets in emergency AOG scenarios.
Reduces downtime by enabling rapid, precise application.
Essential for MRO teams to keep aircraft airworthy and maintain safety standards.
Compatibility & Safety Notes for PPG PR1440A-1/2

Compatible with aluminium, composites, titanium, stainless steel and painted surfaces.
Resistant to aviation fuels, hydraulic fluids, oils and water.
Non-sag, brushable formula allows use on vertical or overhead surfaces.
PPE recommended; refer to SDS for detailed handling instructions.
Packaging & Procurement for PPG PR1440A-1/2 (matched to the Aerospheres page and common market packs)
Supplied in 150?ml (0.15?L / 5.07?fl.?oz.) Semkit cartridge.
Shelf life ~9 months in cool, dry storage.
Certificates of Conformance (CoC) available from authorized distributors.
Why PPG PR1440A-1/2 is Chosen for AOG / MRO

Rapid, accurate mixing and application reduces aircraft downtime.
Provides a durable, flexible seal under extreme temperatures and chemical exposure.
Versatile for multiple aircraft platforms and maintenance scenarios.
Trusted globally by aviation engineers and ground crew.
Practical Suggestions for Your Team (AOG mindset) for PPG PR1440A-1/2
Keep pre-stocked in AOG kits for emergency repairs.
Train ground crew in correct mixing and application techniques.
Regularly check expiration dates and storage conditions.
Ensure proper surface preparation to optimize adhesion.
Manufacture / Aviation Spec Codes for PPG PR1440A-1/2

Manufacturer: PPG Aerospace
Applicable Specs: MIL-S-8802F, BMS 5-26U, AIMS 09-00-002, SS 8664, 299-947-107, 6500126, SPC-34162, MIS 30391