Nonflammable aerosol

Quantity limits: Included in, not in addition to, the quantity limits for other aerosols: The total aggregate quantity per person cannot exceed 2 kg (70 ounces) or 2 L (68 fluid ounces). The capacity of each container must not exceed 0.5 kg (18 ounces) or 500 ml (17 fluid ounces).

Some of these flat-tire-fixer products are nonflammable aerosols and some are not. Those containing flammable products are forbidden in carry-on and checked baggage.

See the regulation: 49 CFR 175.10(a)(1)(ii)