Sealants · SKU 09-04643

PS-890 Class B Fuel Tank Sealant

The fillet grade of PS-890, a two-part polysulfide paste applied by gun or spatula.

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

AmericaMore distributors coming soon

EuropeMore distributors coming soon

OceaniaMore distributors coming soon

The brushable grade for fastener and faying seals is PS-890 Class A. The European listing for the same chemistry is PR-1440 at a distributor.

Which class and grade a repair calls for is in the maintenance data.

Type	Two-part manganese dioxide cured polysulfide
Class	B: low-sag paste for fillet sealing
Service temperature	-54 °C to 121 °C, excursions to 135 °C
Grade	B2

Source: a distributor's listing, checked 2026-09-30.

Where can I buy the Pro-Seal Fuel Tank Sealant P/S 890 B2?

A distributor we checked lists it in the Americas. The link to its page, with the live price and stock, opens when the partnership does.

Pro-Seal Fuel Tank Sealant P/S 890 B2Where to buy