
Sealants
PS 870 A2 Corrosion Inhibitive Sealant
SKU: PS 870 A2
Brand: PPG
Pricing on request
Specifications
| Part Number | PS 870 A2 |
|---|
Description
PPG PS 870 A-2 is a two-part, manganese dioxide-cured polysulfide sealant that protects aluminium alloys and dissimilar-metal joints against corrosion. Class A means it is applied by brush, and the -2 means about a 2-hour application life. Mixed, it is grey. It is used on faying surfaces, fasteners and wet-installed parts during airframe assembly and repair, and is made to MIL-PRF-81733 Type I-2, Class 1, Grade A.
Angad Aviation supplies this part with full traceability and documentation — request a quote for current pricing, pack sizes and lead time.
- Brand: PPG
- Part No.: PS 870 A2
Frequently asked
What do the A and -2 in PS 870 A-2 mean?
Class A is the brushable grade, and the dash number is the application life in hours, so A-2 is a brushable sealant with about 2 hours to apply it after mixing. PS 870 is also made in other classes for gun or faying-surface use.
Is PS 870 a fuel tank sealant?
No. PS 870 is a corrosion inhibitive sealant for faying surfaces and fasteners. It withstands limited exposure to jet fuel and aviation gasoline, but integral fuel tanks use a fuel tank sealant such as the PR-1782 series.
How do I get pricing and lead time?
Angad Aviation supplies this part quote-first — click Request a Quote and our team responds with current price, available pack sizes, and lead time. Parts ship with traceability and, where required, an authorized-release certificate you can verify online via Angad Verified.
From other manufacturers
Other manufacturers we source in Sealants. Not a statement of interchangeability — send us your part number and we will confirm what fits.


WS 8070 B1-2 Corrosion Inhibitive Sealant
WS 8070 B1-2 Corrosion Inhibitive Sealant
















