What type of resin dries and becomes non-sticky very quickly?

• A. Synthetic
• B. Natural
• C. Both
• D. Neither

Answer: (A)

The key idea is how resin hardens. Synthetic resins are designed to cure quickly through chemical reactions such as polymerization or cross-linking, often aided by heat, catalysts, or solvent loss. When these reactions proceed, the resin forms a tight, interconnected network that eliminates surface tackiness and yields a hard, non-sticky film in a short amount of time. That rapid, complete set is what makes synthetic resins dry and become non-sticky very quickly.

Natural resins, on the other hand, tend to dry by evaporation of volatile components or slower oxidation, and they often retain tackiness longer until all solvents have evaporated or oxidation finishes. This slower course means they are not as quickly non-sticky as synthetic resins.

So the resin type that dries and becomes non-sticky very quickly is synthetic resin.