3M™ Aerospace AC-350 B-2 Dark Gray AMS-S-8802D Class B-2, Type II Spec Fuel Tank & Fuselage Sealant - 3.5 oz Kit

Features

Application Life and Cure Time
(At 75 degrees F, 50% Relative Humidity)

B-1/2

B-2

*Application life refers to the length of time that mixed compound remains at a consistency suitable for application with spatula or caulking gun. Application life is always measured at a standard temperature of 77 degrees F with a relative humidity of 50%. In general, for every 20 degree rise in temperature, the application life is halved; and for every 20 degree drop, it is doubled. High humidity levels during the mixing process will shorten application life.

**Tack-free time is the length of time after which a mixed sealant will no longer tightly adhere to LP-P-690 standard low-density polyethylene film.

***Cure time is defined as the length of time it takes AC-350 Class B sealant to reach 30A hardness. It depends on three factors: remaining application life, temperature and relative humidity. The temperature/humidity factors for application life also apply to curing. To accelerate the curing process, apply heat up to (but no more than) 140 degrees F.

Typical Physical and Performance Properties of Cured Compound after 14 days at 77 degrees F / 50% Relative Humidity

Downloads

 Safety Data Sheet