Sealants · SKU A01I4L4B7
PS-870 Corrosion Inhibitive Sealant
A polysulfide sealant made to stop corrosion between aluminium parts and dissimilar metals, in three classes.
- TypeTwo-part manganese dioxide cured polysulfide
- Service temperature-54 °C to 121 °C, excursions to 135 °C
- Packaging100 ml Semkits
Where to buy
AmericaDistributor coming soonOur partner for this region is on its way
EuropeDistributor coming soonOur partner for this region is on its way
OceaniaDistributor coming soonOur partner for this region is on its way
More distributors
AmericaMore distributors coming soon
EuropeMore distributors coming soon
OceaniaMore distributors coming soon
Class C is the one for faying surfaces: the sealant between two parts riveted together. A distributor lists it as resisting only limited fuel exposure; for fuel tanks see PR-1440.
Which class a joint calls for is in the maintenance data.
Specifications
| Type | Two-part manganese dioxide cured polysulfide |
|---|---|
| Class A | Brush, up to 25 mils |
| Class B | Low-sag paste, gun or spatula |
| Class C | Roller and faying-surface sealing |
| Service temperature | -54 °C to 121 °C, excursions to 135 °C |
| Packaging | 100 ml Semkits |
Source: a distributor's listing, checked 2026-09-30.
Sizes listed 4 rows
| Part | Class | Cure Time |
|---|---|---|
| PS870AB100 | Class A | 2 Hour |
| PS870BA100 | Class B | 1/2 Hour |
| PS870BB100 | Class B | 2 Hour |
| P870C12100 | Class C | 1/2 Hour |
Questions people actually ask
Where can I buy the PS870 Corrosion Inhibitive Sealant?
A distributor we checked lists it in the Europe & UK. The link to its page, with the live price and stock, opens when the partnership does.
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