Which of the following is a characteristic of chemcially activated adhesives?

Chemically activated adhesives are distinguished by their curing process, which occurs through a chemical reaction. This means that once the adhesive components are mixed, they undergo a transformation that changes them from a liquid state to a solid state, effectively bonding materials together. The chemical reaction involved can vary, but it typically involves the activation of certain compounds that react with one another to form a durable bond.

In contrast, other types of adhesives often rely on external conditions such as heat or moisture to cure; for example, some may require heat to enable curing while others might be water-based and cure as the water evaporates rather than through a chemical reaction. Additionally, while there are some adhesives derived from natural products, not all chemically activated adhesives fall in this category since many are synthetic and designed for specific bonding requirements. Hence, the defining characteristic of chemically activated adhesives is indeed their reliance on a chemical reaction to achieve curing.