PPG PR1428B-2 (100-ml-Semkit)

Additional Product Information

PPG PR1428B-2 is trusted by MRO teams and aircraft engineers worldwide because it delivers reliable, removable sealing for critical fuel tank access doors on everything from next-generation military jets to commercial passenger aircraft. Its low-adhesion polysulfide formula resists aviation fuels and extreme conditions, ensuring safe, efficient maintenance while simplifying inspection and rework. This sealant is a proven industry standard across the aviation industry, supporting the safety of millions of passengers each year by helping ground crews and AOG teams keep aircraft mission-ready. When precision, safety and dependability matter most, engineers reach for PPG PR1428B-2.

Key Technical Specs for PPG PR1428B-2

• Type: Two-part, low-adhesion polysulfide sealant
• Primary Use: Sealing aircraft fuel tank access doors, forming form-in-place gaskets and protecting electrical components from fuel, moisture and dirt
• Service Temperature: -65°F to 250°F (-54°C to 121°C), with intermittent excursions up to 250°F (135°C)
• Consistency: Thixotropic paste, low-sag, suitable for extrusion gun or spatula application
• Cure/Work Life: B-2 variant provides ~2 hours application life at 25°C (77°F)
• Protection: Resistant to fuel, environmental exposure and short circuits

Approvals & Specifications for PPG PR1428B-2

• PPG OEM Part No.: PR1428B2-1001
• UN Number: UN3082
• Class: CL9, PGIII
• ECCN: EAR99
• Compliance with aerospace standards for fuel tank access door sealing

Typical Aircraft MRO / AOG Applications for PPG PR1428B-2

• Essential in MRO inventories for fuel tank maintenance, prevents fuel leaks and protects wiring and components
• Valuable for AOG situations, allowing fast turnaround and on-wing repairs without long downtime
• Supports aircraft safety, inspection, and structural integrity for both military and commercial fleets

Compatibility & Safety Notes for PPG PR1428B-2

• Safe for use on typical aircraft metals, composites and primer coatings
• Easy application makes it practical for MRO teams, ground crew and rapid-response AOG repairs
• Shelf life: 9 months (270 days) from manufacture, stored correctly

Packaging & Procurement for PPG PR1428B-2 (matched to the Aerospheres page and common market packs)

• Pack Size: 100-ml Semkit cartridge
• Colour: Black
• Origin: United Kingdom
• Ideal for single-job use to minimize waste

Why PPG PR1428B-2 is Chosen for AOG / MRO

• Removable, low-adhesion seal allows repeated access for inspections
• Versatile, fuel-resistant and temperature-stable, making it a reliable “go-to” sealant for aircraft engineers and ground crew
• Critical for fast-response situations to reduce aircraft downtime

Practical Suggestions for Your Team (AOG mindset) for PPG PR1428B-2

• Always keep stock on-hand for fast response: A 100-ml Semkit is ideal for single-job applications, so having multiple kits ready in your MRO inventory reduces aircraft downtime during AOG situations.
• Pre-kit the tools for rapid deployment: Store the sealant with extrusion guns, spatulas, and mixing pads so ground crews can start on-wing repairs immediately without searching for equipment.
• Verify substrate compatibility in advance: Ensure the surfaces are clean and compatible; this avoids delays or rework during critical AOG repairs.
• Use proper surface prep: Solvent wipe and dry surfaces according to TDS instructions to maximize adhesion while keeping the seal removable for future inspections.
• Track shelf life and batch rotation: PR1428B-2 has a 9–12 month shelf life, rotate stock to avoid using expired or degraded sealant during urgent repairs.
• Document usage for audit & repeatability: Record batch numbers, application areas, and cure times to meet OEM compliance and maintain traceability for safety-critical aircraft components.
• Train your AOG crew on quick application: Two-part mix must be blended correctly; pre-brief the team on working time (~2 hours at 25°C / 77°F) to avoid wasted material or delayed repairs.
• Keep extra kits in AOG “rapid response boxes”: For airlines or MROs servicing multiple aircraft types, having PR1428B-2 ready in modular toolkits ensures teams can respond immediately to fuel tank or access door maintenance needs.

Manufacture / Aviation Spec Codes for PPG PR1428B-2

• Commonly referenced by OEMs such as Boeing, Airbus, Lockheed Martin for fuel tank and access door sealing, though always verify per specific aircraft maintenance manual

Alternative Names & Descriptions for PPG PR1428B-2

• PR-1428B-2 access door sealant
• PR-1428B-2 Semkit
• Fuel tank access door sealant (PPG)
• Low-adhesion polysulfide sealant for aircraft maintenance
• PR1428B2SEMKIT:K6807
• PR1428B2-TU