Which of the following is not an example of a convertible cured coating?

The correct answer is chlorinated rubber as it is not considered a convertible cured coating. Convertible cured coatings are those that undergo a chemical reaction during the curing process, which involves cross-linking and typically occurs through the addition of heat or a chemical catalyst. This category includes coatings like alkyds, polyureas, and polyester coatings, which form a complex network that enhances their performance characteristics such as durability and chemical resistance.

Chlorinated rubber, however, does not fit into this category as its curing process primarily relies on solvent evaporation rather than a chemical reaction leading to cross-linking. Thus, while chlorinated rubber can be effective in specific applications due to its quick-drying nature and resistance to water, it lacks the same structural properties derived from a convertible curing process seen in the other types of coatings mentioned. This distinction highlights the different mechanisms of curing and the properties imparted to the coatings based on those mechanisms.