RTV in sealant terminology stands for room-temperature vulcanizing.

• A. True
• B. False
• C. Rapid vulcanization
• D. Renewable thermal vulcanization

Answer: (A)

RTV means room-temperature vulcanizing, which describes a silicone sealant that cures at ambient temperature without needing heat or special curing conditions. This behavior is what makes RTV sealants ideal for engine and gasket work where a flexible, oil- and temperature-resistant seal is needed but you can’t or don’t want to apply heat to cure it. That’s why the statement is true: RTV is defined by curing at room temperature. Terms like rapid vulcanization or renewable thermal vulcanization aren’t standard descriptions for RTV in sealant terminology, so they aren’t used to define RTV.