PPG Proseal PS-890 B-1/2 Fuel Tank Sealant - 3.5 Oz. Cartridge

PPG P/S 890 Class B B-1/2 is a two-part, manganese dioxide-cured polysulphide sealant for aircraft integral fuel tank and fuselage sealing work. Supplied in a 3.5 oz cartridge, it is a low-sag, thixotropic paste intended for fillet sealing and application by extrusion gun or spatula.

The cured sealant is designed to retain elastomeric properties following prolonged exposure to jet fuel and aviation gasoline. It cures at room temperature to form a resilient seal with adhesion to common aircraft substrates when correctly prepared.

• Manufacturer part number: 0890B1/2AM65
• Product series: P/S 890 Class B
• Grade: B-1/2
• Format: 3.5 oz cartridge
• Typical application life: 1/2 hour at 25°C and 50% relative humidity
• Typical tack-free time: less than 4 hours at 25°C and 50% relative humidity
• Service temperature range: -54°C to 121°C; intermittent excursions up to 135°C
• Material: two-part polysulphide compound

Refer to the applicable PPG Technical Data Sheet and Safety Data Sheet, together with the approved maintenance data for the intended task, before use.