Which type of adhesive is typically used for high-temperature applications?

In high-temperature applications, a heat-resistant epoxy is the preferred choice because it is specifically formulated to withstand elevated temperatures without losing its structural integrity or bonding capabilities. Standard epoxies, while strong, may degrade or lose effectiveness when exposed to high heat over time. Heat-resistant epoxies are designed with additives that enhance their performance under thermal stress, making them ideal for environments where temperature fluctuations are common.

While polyurethane and silicone adhesives have their own benefits, they do not possess the same level of high-temperature resistance as heat-resistant epoxies. Polyurethane, in particular, performs well in flexible applications but may not maintain bond strength under intense heat. Silicone adhesives can tolerate some heat, but they are typically used for their flexibility and water resistance rather than in structural applications requiring high tensile strength at elevated temperatures.

Thus, heat-resistant epoxy stands out as the superior choice for applications where temperature rises beyond normal operational levels.