RX1-09-06134

Flamemaster Chemseal CS 3204 Class B-2 is a two-part, standard-curing polysulfide aerospace sealant supplied in a black quart kit. It is designed for fuel-tank and fuselage sealing applications.

The Class B formulation is a thixotropic, low-sag paste suitable for application by extrusion gun or spatula. Once cured, it provides flexibility, adhesion to a range of coated and bare aircraft substrates, and resistance to fuel, water, and other aerospace fluids.

• Manufacturer part numbers: CS3204B2 BLK QT; CS3204B2 QT BLK
• Specification reference: AMS-S-8802, Type 2
• Class B-2 minimum application time: 2 hours at 25 °C and 50% relative humidity
• Black curing-agent formulation; mixed sealant is dark gray
• Quart kit packaging

Refer to the manufacturer’s CS 3204 Class B technical data sheet for application, surface-preparation, mixing, curing, health and safety, and specification details.