AS3145 FAA-PMA Clear Silicone Adhesive Sealant for Aircraft Maintenance Applications
The AS3145 FAA-PMA Clear Silicone Adhesive Sealant is an FAA Parts Manufacturer Approval (PMA) qualified silicone sealant designed specifically for use in aircraft maintenance and repair operations. Meeting the AS3145 aerospace standard, it provides reliable bonding, sealing, and gasketing performance on a wide variety of aircraft surfaces including metal, glass, composite, and rubber materials.
Its clear silicone formulation delivers excellent weathering resistance, UV stability, and flexibility over the wide temperature range experienced by aircraft in service. The FAA-PMA approval ensures it meets the rigorous quality and performance standards required for use on FAA-certificated aircraft, making it a trusted solution for certified maintenance facilities and line maintenance operations.
The convenient 3 oz tube format allows precise application of sealant to specific areas without the waste or complexity of cartridge-and-gun systems, making it ideal for small repairs, gasket applications, and touch-up sealing jobs on aircraft.
Product Specifications
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | AS3145C |
| Specification | AS3145 |
| Regulatory Approval | FAA-PMA Approved |
| Color | Clear |
| Product Type | Silicone Adhesive Sealant |
| Package Size | 3 oz Tube |
| Substrate Compatibility | Metal, Glass, Composite, Rubber |
| Application Method | Direct Tube Extrusion |
| Industry Use | FAA Certificated Aircraft Maintenance, Line Maintenance, MRO |
Technical Information
AS3145 silicone sealant cures via a room-temperature vulcanization (RTV) mechanism, reacting with atmospheric moisture to form a flexible, durable silicone elastomer. The cured silicone provides excellent adhesion to metal, glass, and composite substrates without requiring a separate adhesion promoter in most applications, simplifying the repair process for certified maintenance technicians.
The cured material maintains its flexibility and adhesion over a temperature range far exceeding that of polysulfide sealants, making it suitable for applications involving significant thermal cycling such as engine compartment gaskets, electrical component sealing, and exterior fairings. Its excellent UV resistance prevents degradation of joints exposed to sunlight on aircraft exterior surfaces.
FAA-PMA approval requires that the product is manufactured to consistent quality standards with full traceability, ensuring every batch meets the AS3145 performance requirements. The FAA-PMA designation allows it to be used as a replacement part on type-certificated aircraft when used per the approved maintenance data.
Why Choose AS3145 Silicone Sealant?
- ✅ FAA-PMA Approved — Qualified for use on certificated aircraft
- ✅ AS3145 Qualified — Meets aerospace silicone sealant standard
- ✅ Clear Formulation — Clean, professional appearance on completed repairs
- ✅ Wide Temperature Range — Maintains seal from arctic cold to engine heat
- ✅ Multi-Substrate Bonding — Metal, glass, composite, rubber in one product
Frequently Asked Questions
Q: Is AS3145 approved for use on FAA-certificated aircraft?
A: Yes. AS3145C carries FAA-PMA approval, allowing it to be used as an approved replacement material in aircraft maintenance when applied per the appropriate maintenance data.
Q: What is the MPN for this product?
A: MPN is AS3145C. Spec: AS3145 FAA-PMA.
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