Puncture sealant
Puncture sealant means a mixture that may include, but is not limited to, solvent constituents, mixed rubber compound, and process oil that is applied to the inner liner of a finished tire for the purpose of sealing any future hole which might occur in the tread when an object penetrates the tire.
Source
40 CFR § 63.6015
Scoping language
Terms used in this subpart are defined in the Clean Air Act and in 63.2, the General Provisions. The following are additional definitions of terms used in this subpart: