RX1-09-06550

Flamemaster Chemseal CS 415 Class B-1/2 is an aluminium-coloured, two-part, manganese-dioxide-cured polysulfide sealing compound. It is intended for sealing external aircraft seams, depressions and gaps to support weather tightness and aerodynamic smoothness.

The uncured material is thixotropic, low-sag and suitable for application by extrusion gun or spatula. Once cured, it offers flexibility and resistance to fuel, water and other aerospace fluids.

• Manufacturer part number: CS415B1/2 6OZ
• Reference specification: MIL-S-38228
• Class: B-1/2
• Colour: aluminium / silver grey
• Minimum application time: 30 minutes at 25 °C and 50% relative humidity
• Service temperature range after cure: -54 °C to +121 °C
• Supplied as a 3.5 oz cartridge

Please consult the manufacturer’s current technical data sheet and safety data sheet before use. Verify suitability against the applicable maintenance data and material requirements.