PPG PR1828B-1/4 (1-ea-S654)

Key Features & Benefits Of PPG PR1828B

• Rapid cure formulation – Short 15-minute application life for efficient maintenance and manufacturing workflows.
• Outstanding fuel resistance – Maintains elastomeric properties after long-term exposure to aviation fuels.
• Broad service temperature range – Reliable performance from −80 °F (−62 °C) to +320 °F (160 °C), with intermittent exposure up to 420 °F (216 °C).
• Excellent adhesion – Bonds strongly to aircraft substrates including aluminum and composites.
• Low-sag, thixotropic paste – Ideal for fillet sealing, vertical or overhead applications without slump.
• Insensitive to humidity and low-temperature curing – Suitable for a variety of working environments.

Specifications & Identifiers For PPG PR1828B

• Specification Compliance: AMS 3277J, Type 2, Class B-1/4, Grade 1
• Manufacturer: PPG Aerospace (formerly PRC-DeSoto)
• Part Numbers / Kit Codes (examples):
• 1828B1/4AM654SK (6 oz Semkit® cartridge)
• 1828B1/4AM655SK (2.5 oz Semkit® cartridge)
• Application Life: ~15 minutes at 25 °C (77 °F)
• Color: White (standard)

PR-1828B-1/4 is the ideal choice for aerospace operators, OEMs, and MRO facilities needing a rapid-curing, high-performance fuel tank sealant that meets AMS 3277J standards while reducing downtime in critical sealing operations.

Product Review

PPG PR1828B Strengths / Good Points

1. Fast Cure Time (B-1/4 grade)
• The 15-minute application life is excellent for quick turnaround jobs and spot repairs.
• Minimises aircraft downtime compared to slower-curing alternatives.
2. Proven Fuel Resistance
• Holds up extremely well against jet fuel and aviation gasoline.
• Doesn’t soften, crack, or lose adhesion even after long-term fuel exposure.
3. Wide Temperature Performance
• Reliable from extreme cold (−80 °F / −62 °C) up to +320 °F (+160 °C), with short surges to 420 °F (+216 °C).
• Suitable for a wide range of operating environments, including high-altitude cold soak and ground heat cycles.
4. Excellent Adhesion to Substrates
• Bonds strongly to aluminum and composite surfaces commonly used in aircraft structures.
• Reduces the risk of leaks or rework.
5. Low-Sag, Thixotropic Paste
• Easy to apply on vertical or overhead joints without dripping or slumping.
• Clean, controlled application, especially when used with Semkit® cartridges.
6. Humidity and Temperature Tolerance
• Unlike older polysulfide sealants, PR-1828 can cure reliably in less-than-ideal shop or hangar conditions.
• Provides confidence in varied climates and working environments.
7. AMS 3277J Certified
• Meets AMS 3277J, Type 2, Class B-1/4, Grade 1, which gives operators confidence it meets industry-accepted aerospace sealing standards.

In a nutshell: PR-1828B-1/4 is valued for speed, reliability, and fuel resistance. It’s ideal for MRO teams or OEM assembly lines where downtime costs money, and a sealant that works fast and holds strong is a huge advantage.

IDENTIFICATION
Known Spec / Standard Codes For PPG PR1828B

• PR-1828 is qualified to AMS 3277J, Type 2, Class B-x, Grade 1 where “x” refers to the cure / application life (for example, B-1/2, B-1/4).
• The “B-1/4”, “B-1/2” etc. are application life sub-classes accepted under the AMS 3277 specification.

Airbus / Boeing / Other PPG PR1828B OEM Specs

• There is no direct public reference that I could locate where Airbus or Boeing have assigned their own internal specification code (like a “BAC-xxx”, “AMS-on-behalf”, or “Airbus Spec No. xxxx”) specifically for PR-1828.
• On Boeing’s own supply site, PR-1828 is listed under AMS 3277 (which Boeing accepts), but not under a unique Boeing specification number.
• Likewise, I did not find a source that shows an Airbus spec number for PR-1828 in public technical documentation.

Practical Implication
What this means for you:

• If you are verifying whether PR-1828 meets the requirements for an Airbus or Boeing project, the critical thing is whether “AMS 3277J, Type 2, Class B-(your cure grade), Grade 1” is accepted in that project’s specification / maintenance or repair documentation.
• Even though OEMs like Airbus or Boeing often have internal spec numbers or variants, in many cases what matters is adherence to the AMS standard and sometimes additional project-specific qualifications (e.g. parts approval, batch traceability).
• If you are submitting this sealant for approval or procurement, you may need to reference “AMS 3277J” plus the correct cure grade (Class B-1/4, B-1/2 etc.), and possibly obtain certification or acceptance from the OEM.

Possible Alternative Generic Product Titles:

• PR1828-B1-4_100ML
• PR-1828 B-1/4
• PR1828B1-4SK654:83574
• PR1828 B1/4 SK654
• PR1828B1/4
• PR1826B1-4-100ML
• PR1828B1-4
• PR1828B1-4-SEMKIT-654
• PR1828-CLASS B 1/4
• PR-1828-CLASS-B-1/4