2 part brush consistency elastomeric compound for sealing fuel tanks and pressurized cabins. It has outstanding resistance to aviation fuels over a temperature range of -65F to +275F. Excellent adhesion to aluminum, magnesium, titanium, stainless, etc. Recommended as a liner/sealer for composite tanks. Cures at room temperature in 48 hours working life 2 hours. Meets MIL-S-8802 type 1 Class A. Must be sent by UPS ground only. No hazard fee. Orm-D.