PPG PR1776MB-2 (100-ml-Semkit) LOW WEIGHT FUEL TANK SEALANT (100-ml-Semkit)

Additional Product Information

Overview

PPG PR1776MB-2 is trusted by aircraft engineers and MRO teams across the aviation industry for reliable, fuel-tight sealing of critical fuselage and integral fuel tank joints. Its rapid-curing, two-part polythioether formulation reduces downtime during scheduled maintenance and urgent AOG situations. Lightweight yet durable, the sealant maintains excellent elastomeric properties under extreme temperatures and prolonged exposure to aviation fuels. Supplied in a precise 100-ml Semkit, it ensures quick, accurate mixing and application for mission-critical repairs.

Key Technical Specs

• Product Type: Two-part, polythioether-based, rapid-curing sealant
• Volume / Packaging: 100 ml (3.38 fl oz) Semkit cartridge
• Service Temperature: -62°C to +160°C (-80°F to +320°F) continuous; intermittent excursions up to 216°C (420°F)
• Primary Use: Sealing integral fuel tanks, fuselage joints, and access doors exposed to fuel or moisture
• Performance: Maintains elastomeric flexibility after prolonged exposure to aviation fuels; chemical and fuel resistant
• Load-Bearing: Not load-bearing; designed for sealing and fuel-tight integrity only

Approvals & Specifications

• OEM / MRO Approvals: Referenced in military and commercial maintenance programs
• Aircraft Spec Codes: Often listed under Boeing, Lockheed Martin, and military OEM programs; Airbus may require Certificates of Conformance (C of C)
• Certification Notes: Meets internal PPG PR1776MB-2 performance criteria; rapid cure suitable for AOG applications

Typical Aircraft MRO / AOG Applications

• Sealing integral fuel tanks, fuselage joints, and structural interfaces exposed to fuel or condensate
• Rapid AOG repairs requiring fast-curing sealant to prevent aircraft groundings
• Scheduled maintenance for fuel-tight, flexible sealing
• Stocking Benefits: Immediate availability in AOG kits allows engineers to restore fuel integrity quickly, reducing operational delays

Compatibility & Safety Notes

• Compatible with aluminum, titanium, and common aircraft composite substrates (proper surface preparation required)
• Two-part mixing ensures consistent curing; minimal waste in 100 ml Semkit format
• Non-load-bearing; not intended as a structural adhesive
• Wear gloves, eye protection, and use ventilated work areas

Packaging & Procurement

• 100 ml (3.38 fl oz) Semkit with pre-measured Part A and Part B for accurate mixing
• Individually boxed with lot number and shelf life information
• Suitable for immediate use in AOG kits or smaller scheduled maintenance tasks

Why Chosen for AOG / MRO

• Rapid curing minimizes aircraft downtime
• Compact Semkit design prevents waste in small maintenance jobs
• Trusted by MRO teams for critical fuel sealing on military and commercial aircraft
• Lightweight and easy to handle for ground crew in remote or confined areas

Practical Suggestions for Your Team (AOG Mindset)

• Keep 1-2 Semkits per AOG kit for quick fuel-seal repairs
• Train ground crew on proper mixing, surface prep, and curing time
• Store in dry, climate-controlled conditions; check expiration date before use
• Include printed SDS and TDS in the kit for immediate reference

Manufacturer / Aviation Spec Codes

• PPG Manufacturer P/N: PR1776MB-2
• OEM References: Boeing, Lockheed Martin, and other military OEMs (specific codes via supplier C of C)
• Certification: PR1776 series meets internal PPG performance specifications; consult PPG for project-specific approvals

Alternative Names & Descriptions

• PPG PR1776MB-2 Semkit
• PR1776MB-2 100 ml fuel tank sealant
• PPG 100 ml Semkit integral fuel tank sealant
• PR1776MB-2 Two-part aviation sealant
• PPG PR1776MB series sealant (Class B)