PPG PR-148 Blue PRC Standard Spec Adhesion Promoter – 16 oz for Production MRO Use

PPG PR-148 Blue in 16 oz glass bottle format provides the same high-performance adhesion promotion as the 2 oz version, in a larger package designed for production environments, high-volume MRO operations, and applications where multiple sealing joints are treated in a single work session. The blue tint enables clear visual verification of complete promoter coverage before sealant application.

Meeting PRC Standard Specification requirements, PR-148 Blue is compatible with the full range of PPG polysulfide and polythioether aerospace sealants. Its proven chemistry enhances adhesion on aluminum alloy, steel, titanium, and composite aircraft substrates, ensuring long-term sealant joint integrity in fuel tanks, wet bays, and structural applications.

The 16 oz glass bottle minimizes packaging changes during extended operations and provides sufficient material for treating large sealing areas in a single continuous work session, reducing the risk of interruptions that could affect sealant application timing requirements.

Product Specifications

Technical Information

PR-148 Blue 16 oz is optimized for production-scale aerospace sealing operations where consistent adhesion promoter performance is critical across multiple joints and large surface areas. The formulation’s active coupling agents remain stable throughout the shelf life of the product when stored per PPG’s recommendations, ensuring consistent adhesion performance from the first to last application from the bottle.

The blue colorant is precisely calibrated to provide clear visual differentiation between treated and untreated surfaces under normal workshop lighting conditions, while remaining completely compatible with all overcoating sealant systems. It does not affect sealant cure chemistry, mechanical properties, or fuel resistance of the completed joint.

For large-area applications, PR-148 Blue should be applied in thin, uniform coats using a clean brush or lint-free wipe, working systematically across the surface to avoid missed areas. Coverage rate and flash-off time per the PPG TDS must be observed for specification-compliant results.

Why Choose PPG PR-148 Blue 16 oz?

• ✅ PRC Standard Spec Qualified — Aerospace compliant adhesion promotion
• ✅ Blue Visual Indicator — Quality inspection made easy
• ✅ 16 oz Production Size — Ideal for high-volume MRO and production work
• ✅ Compatible with All PPG Sealants — Fuel tank, structural, and window applications
• ✅ PPG Aerospace Quality — Globally approved, proven in service worldwide

Frequently Asked Questions

Q: What is the MPN for PPG PR-148 Blue 16 oz PRC Standard Spec?
A: The Manufacturer Part Number is 0148XXXXA016PT.

Q: Can PR-148 Blue be used with non-PPG sealants?
A: PR-148 Blue is primarily qualified for PPG aerospace sealant systems. Consult the specific sealant manufacturer’s TDS for compatibility with non-PPG products.