PPG PR1826B-1/4 (100-ml-Semkit)

Additional Product Information

Overview

PPG PR1826B-1/4 is a trusted Class B fuel tank sealant used by aircraft engineers and MRO teams across the aviation industry. Its rapid-curing, two-part formulation allows ground crew to perform critical fuel tank and fuselage sealing tasks quickly, helping minimize aircraft downtime during AOG situations. With excellent adhesion, flexibility, and resistance to fuel and extreme temperatures, it supports the structural integrity and safety of aircraft repairs. For this reason, many aviation teams keep PR1826B-1/4 readily available for mission-critical sealing work.

Key Technical Specs for PPG PR1826B-1/4

• Type: Two-part, rapid-curing Class B fuel tank and fuselage sealant
• Size/Volume: 100 ml (3.38 fl. oz.) Semkit
• Color: Typically grey
• Viscosity/Consistency: Thixotropic paste
• Cure/Working Time: Rapid cure; process dependent
• Tensile/Peel Strength: High adhesion to aerospace substrates
• Shore Hardness: Manufacturer specified
• Service Temperature: -62°C to +160°C (-80°F to +320°F), intermittent to +216°C (420°F)
• Typical Uses: Fuel tank sealing, fuselage joint sealing, structural sealing
• Shelf Life: Manufacturer specified

Approvals & Specifications

• Boeing: PR1826B1/4-1001
• Airbus: AIPS 10-02-002
• Military: MMM-A-132 Rev A, Type 1, Class 3
• ASTM: Meets ASTM D3762 wedge test requirements

Typical Aircraft MRO / AOG Applications

• Integral fuel tank sealing and repairs
• Fuselage joint sealing to maintain structural integrity
• Rapid AOG repairs to minimize aircraft downtime
• Aircraft structural maintenance requiring flexible fuel-resistant seals

Compatibility & Safety Notes

• Compatible with metals, composites, and hybrid aircraft materials
• High resistance to aviation fuels, vibration, and temperature extremes
• Follow SDS guidance for PPE, ventilation, and handling

Packaging & Procurement

• 100 ml (3.38 fl. oz.) Semkit with sealant and adhesion promoter
• Pre-measured kit supports accurate mixing and field use
• Store in a cool, dry environment and monitor shelf life

Why PPG PR1826B-1/4 is Chosen for AOG / MRO

• Rapid curing helps reduce aircraft downtime
• Proven fuel and environmental resistance
• Ready-to-use Semkit simplifies line maintenance
• Widely trusted for critical fuel system sealing

Practical Suggestions for Your Team (AOG Mindset)

• Keep stocked in AOG response kits
• Train technicians on proper surface preparation and mixing
• Rotate inventory using FIFO to maintain shelf life
• Maintain accessible SDS/TDS documentation

Manufacture / Aviation Spec Codes

• Manufacturer: PPG Aerospace
• Boeing Spec: PR1826B1/4-1001
• Airbus Spec: AIPS 10-02-002
• Lockheed Martin Spec: SS8612
• Military Spec: MMM-A-132 Rev A, Type 1, Class 3

Alternative Names & Descriptions

• PPG PR1826B-1/4 Sealant
• PR1826 Class B Fuel Tank Sealant
• PR1826B-1/4 Semkit
• PPG Fuel Tank Sealant
• PR1826B Epoxy Sealant
• PR1826B1/4
• PR1826B1/4 SEMKIT 655
• PR1826B1/4-100ML
• PR1826B1-4:83574
• PR1826B1/4SEMKIT654
• PS860 B1/6