AS159 FAA-PMA Red Silicone Sealant – 3 oz Tube, 12/Pack for Bulk Aircraft Maintenance

Aerospace Sealants AS159 Red Silicone Adhesive Sealant in 3 oz tube, 12-pack format provides a bulk supply of FAA-PMA approved high-temperature red silicone sealant for MRO organizations and maintenance facilities that regularly require red silicone for engine area, firewall, and high-temperature sealing applications across their fleet. The 12-pack reduces ordering frequency and provides cost savings compared to individual tube purchasing.

The red color of AS159 serves both aesthetic and functional purposes — it provides easy visual identification and inspection of sealant coverage in high-temperature zones where confirming complete sealing is critical for safety. The red pigment is thermally stable, maintaining its color integrity at high service temperatures without fading or color migration.

Each tube in the 12-pack is individually sealed to preserve the one-component moisture-cure silicone in its uncured state, ensuring fresh, fully reactive sealant is available from every tube in the pack regardless of when individual tubes are opened during the pack’s use period.

Technical Information

AS159 red silicone achieves its high-temperature performance through a silicone polymer backbone with exceptional thermal stability. The phenyl-modified or high-phenyl silicone chemistry maintains its cross-linked elastomeric network structure at temperatures that would cause degradation, embrittlement, or adhesion loss in conventional silicone formulations and non-silicone sealants.

The red thermally stable pigment system is based on inorganic colorants that maintain their color and dispersion at high service temperatures without bleeding, fading, or chemically interacting with the silicone matrix. This ensures the visual identification function of the red color is preserved throughout the service life of the sealant in high-temperature application zones.

Cure of AS159 proceeds by room-temperature vulcanization (RTV) even in high-temperature application areas, as the sealant is applied at ambient temperature and allowed to cure before the area reaches service temperature. The fully cured silicone elastomer then demonstrates its high-temperature stability in service. Refer to the AS159 technical data sheet for minimum cure time before elevated temperature exposure.

Why Choose AS159 Red Silicone 12-Pack?

• ✅ FAA-PMA Approved — Regulatory compliant for certificated aircraft maintenance
• ✅ High-Temperature Performance — Engine nacelle, firewall, exhaust zone applications
• ✅ Red Visual Indicator — Easy coverage inspection in critical zones
• ✅ 12-Pack Bulk Value — Cost-efficient for regular fleet maintenance
• ✅ Individually Sealed Tubes — Fresh material guaranteed in each tube

Applications and Compatible Aircraft

AS159 red silicone is used in engine nacelle sealing, thrust reverser joints, firewall sealing, exhaust area gasketing, pylon fairing bonding, and other high-temperature sealing applications on commercial and military aircraft.

Frequently Asked Questions

Q: Why is AS159 red colored?
A: The red color provides thermal-stable visual identification and easy inspection of sealant coverage in high-temperature aircraft zones such as engine nacelles and firewall areas where confirming complete sealing is safety-critical.

Q: What temperatures can AS159 withstand?
A: AS159 is a high-temperature rated silicone sealant. Refer to the AS159 technical data sheet for specific temperature ratings applicable to your use case.

Q: How many tubes in the 12-pack?
A: 12 tubes of 3 oz AS159 red silicone per pack. MPN: AS159-10C-12.

Q: Is the AS159 12-pack FAA-PMA approved?
A: Yes. All tubes in the 12-pack carry FAA-PMA approval. MPN: AS159-10C-12.

Q: How should I apply AS159 from the tube?
A: Cut the tube nozzle to the desired bead width, apply to the clean, dry substrate surface, and tool the sealant into the joint as required. Allow to cure per the AS159 TDS before exposing to service temperatures.