Epoxy and MMA Adhesives
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An epoxy adhesive is a two-part component of resin and hardener that is kept separate until needed for bonding. Before application, it is thoroughly mixed to activate, then applied to the substrates to create a strong structural bond.
Methyl methacrylate adhesives are acrylic adhesives also comprised of a two-part component of resin and hardener that needs to be thoroughly mixed before application. Similar to epoxy, MMAs are used for structural bonding.
Because both have similar bond strengths and are structural adhesives, or adhesives that become part of the structure they are bonding, epoxies and MMAs are often compared with each other. The difference between the two, however, are the raw materials used to make them. Epoxies are made of epoxy resin and a hardener, whereas MMAs are made of acrylic resin and a hardener.
The temperature that epoxy adhesives can withstand depends on the specific formula and manufacturer, but many types of epoxy adhesives can withstand temperatures between 150°F and 300°F (65°C to 149°C). Some high-temperature epoxies can withstand temperatures up to 600°F (315°C) or higher. However, it's important to note that the temperature range for a particular epoxy should be verified with the manufacturer, as using the adhesive outside of its recommended temperature range can result in weakened bonds or failure.