PPG PR1428A-1/2 (1-ea-S654)
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Limited availabilityLimited global stock availability due to production delays, high demand, or supply chain disruptions.Total Available Stock: 1642
PPG PR1428A-1/2 (Also known as: PR1428 Class A Sealant, Semkit 654 & Fuel Tank Access Door Sealant)
Summary: PPG PR1428A-1/2 is a two-part, manganese dioxide-cured polysulfide sealant designed for sealing aircraft fuel tank access doors and forming removable gaskets.
MRO Category: Sealants
Sub-Category: Fuel Tank Sealants / Access Door Sealants
Function: Removable sealing and form-in-place gasket fabrication
Use Cases: Fuel tank access door sealing, form-in-place gaskets
Description:
PPG PR1428A-1/2 is a high-performance, manganese dioxide-cured polysulfide sealant specifically designed for fuel tank access door applications in the aviation industry. Supplied in a 6 fl oz (177.44ml) Semkit package. This product offers a low-adhesion, brushable consistency ideal for form-in-place gaskets and removable seals. Aircraft engineers, ground crew and MRO teams rely on PPG PR1428A-1/2 for its proven durability across a wide temperature range from −54°C (−65°F) to 135°C (275°F) intermittent and its compatibility with aircraft-grade substrates. The sealant cures to a resilient finish that withstands fuel exposure and vibration, making it a trusted solution for both scheduled maintenance and AOG scenarios.
Correct volume (6 fl oz / 177.44ml), packaging format (Semkit) and intended use (fuel tank access door sealant). With a shelf life of 12 months (360 days), PPG PR1428A-1/2 is a dependable choice for aviation engineers seeking quality and consistency in sealant performance. Whether you're working on commercial jets or military aircraft, this sealant meets the rigorous demands of the aviation industry. To learn more about purchasing PPG PR1428A-1/2, aviation engineers can email sales@aerospheres.com, call UK +44 (0)3333 247 777 or US +1 888 421 7703, or simply click the Add To Cart option on the Aerospheres product page.
Spec Sheets For PPG PR1428A-1/2:
PPG PR1428A-1/2 Technical Data Sheet
Safety Data Sheet for PPG PR1428A-1/2 Part A
Safety Data Sheet for PPG PR1428A-1/2 Part B
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Additional Product Information
Trusted by MRO teams and aircraft engineers across the globe, PPG PR1428A-1/2 is the industry-standard sealant for fuel tank access doors. Used on everything from cutting-edge military jets to commercial airliners carrying millions of passengers annually. Its low-adhesion, brushable formula ensures easy removal during maintenance while delivering a reliable seal that withstands extreme temperatures and fuel exposure. Whether you're facing routine checks or AOG emergencies, this Semkit-packaged solution simplifies application and meets the rigorous demands of the aviation industry. That’s why ground crews and engineers alike reach for PPG PR1428A-1/2 because safety, speed and precision matter.
Key Technical Specs for PPG PR1428A-1/2
- Type: Two-part, manganese dioxide-cured polysulfide sealant
- Class: A
- Application: Brushable up to 25 mils (0.635mm) thickness
- Service Temperature: −54°C (−65°F) to 121°C (250°F); intermittent up to 135°C (275°F)
- Cure Profile: Room temperature cure; forms a resilient, flexible seal
- Use Case: Designed for fuel tank access door sealing and form-in-place gaskets
- Load-bearing: Not intended for structural load-bearing; optimized for sealing and removability
Approvals & Specifications for PPG PR1428A-1/2
- UN Number: UN1133 (Hazardous Material)
- ECCN: EAR99
- Commodity Code: 32149000
- Shelf Life: 12 months (360 days)
- OEM Part Number: 1428A1/2CA654SK
- Manufacturer: PPG Aerospace / PRC-DeSoto
Aircraft Manufacturer Specs (commonly referenced):
- Boeing: BAC 5000 series
- Airbus: AIMS 04-05-001
- Lockheed Martin: LMA-MC001
- Bombardier / Embraer: Often used under general fuel tank sealant specs
Typical Aircraft MRO / AOG Applications for PPG PR1428A-1/2
- Fuel Tank Access Doors: Ensures a reliable seal that’s easily removable during inspections or repairs
- FIP Gaskets: Used to fabricate custom gaskets in-situ
- Routine Maintenance: Ideal for scheduled checks and unscheduled AOG events
- Why It’s Critical to Stock:
- Enables fast turnaround during AOG
- Reduces downtime with easy application and removal
- Supports compliance with OEM specs and safety protocols
Compatibility & Safety Notes for PPG PR1428A-1/2
- Substrate Compatibility: Bonds well to aluminium, composites, and aircraft-grade materials
- Safety: Classified as hazardous (UN1133); requires proper handling and storage
- Shipping: Refrigerated shipping recommended for sea freight or transit over 7 days
- Practicality for AOG/MRO: Quick application, reliable cure and easy removal make it ideal for fast-paced maintenance environments
Packaging & Procurement for PPG PR1428A-1/2 (matched to the Aerospheres page and common market packs)
- Pack Size: 6 fl oz (177.44ml) Semkit
- Product Code: 1-ea-S654
- Colour: Black
- Stock Status: 563 units in UK stock, additional 672 available to order
- Country of Origin: United States
Why PPG PR1428A-1/2 is Chosen for AOG / MRO
- Speed: Brushable and easy to apply in the field
- Reliability: Withstands fuel exposure and temperature extremes
- Flexibility: Removable seal allows for repeated maintenance cycles
- Compliance: Meets aviation-grade specifications across multiple OEMs
Practical Suggestions for Your Team (AOG mindset) for PPG PR1428A-1/2
- Keep a buffer stock of at least 24 units for rapid deployment
- Store in temperature-controlled environments to preserve shelf life
- Train ground crew on Semkit mixing and brush application for efficiency
- Include in AOG kits for fuel system servicing
Manufacture / Aviation Spec Codes for PPG PR1428A-1/2
- Manufacturer: PPG Aerospace / PRC-DeSoto
- OEM Part Number: 1428A1/2CA654SK
- NSN: 8030-01-365-3914
- ECCN: EAR99
- UN Number: UN1133
- Schedule B Code: 3214100010
- Commodity Code: 32149000
- Country of Origin: United States
Alternative Names & Descriptions for PPG PR1428A-1/2
- PR1428 Class A Sealant
- PPG PR1428A-1/2
- Semkit 654
- Fuel Tank Access Door Sealant
- Form-In-Place Gasket Sealant
- Low-Adhesion Polysulfide Sealant
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Shipping Information
- Orders over £50 online are eligible for FREE UK Mainland delivery.
- Collection for orders is available for all customers. At Checkout, please select 'Ex-Works/Collection'.
- European Delivery is available for selected countries. Shipping costs will be calculated according to the weight of the products.
- Refrigerated shipping required for shipments going by sea or exceeding 7 days transit time.
- For additional information, please see our shipping page.
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