Acrylic adhesives and methyl methacrylate adhesives (MMAs) are essentially the same thing. Many people will use these terms interchangeably, but different brands will often stick to one term over the other. For example, 3M’s Scotch-Weld acrylic adhesives and Infinity Bond’s MMA adhesive product lines used different terms but have very similar properties. In some cases, certain products may even be able to act as a substitute for the same application.