PPG Aerospace® P/S 870 C-12 Gray MIL-PRF-81733D Type IV-12, Class 1, GA Spec Corrosion Inhibitive Sealant - 6 oz 654-SemKit

The PPG Aerospace® P/S 870 C-12 is a two-part, manganese dioxide–cured polysulfide sealant, supplied in a 6 oz 654-SemKit, designed to meet MIL-PRF-81733D Type IV-12, Class 1, GA specification. This high-performance sealant is formulated for airframe sealing applications requiring superior corrosion inhibition, providing long-term protection against galvanic and environmental corrosion while maintaining excellent adhesion to aerospace-grade substrates.

The C-12 designation allows for a controlled work life and precise tooling, making it suitable for complex assemblies, OEM production, and MRO maintenance operations. Once cured, P/S 870 C-12 forms a durable, flexible seal capable of withstanding aviation fuels, oils, hydraulic fluids, and environmental exposure, ensuring structural integrity and longevity.

1. Product: P/S 870 C-12 Corrosion Inhibitive Sealant
2. Manufacturer: PPG Aerospace® / PRC-DeSoto®
3. Packaging: 6 oz 654-SemKit (two-part system)
4. Color: Gray
5. Chemistry: Manganese dioxide–cured polysulfide
6. Specification: MIL-PRF-81733D Type IV-12, Class 1, GA
7. Function: Airframe sealing with corrosion protection
8. Provides resistance to fuels, oils, hydraulic fluids, and environmental stresses
9. Ensures durability, flexibility, and long-term adhesion
10. Suitable for OEM assembly and MRO aerospace applications