MMA AT-420 (BLACK)

MMA-AT420

AT420 is a two-part methacrylate, flexible, structural bonding adhesive designed for the structural bonding of various substrates, including fiberglass, steel, aluminum and various plastics (not low energy surfaces). Combined at a ratio of 10:1, AT420 has a working time of 3 – 7 minutes and achieves nearly 90% of its ultimate strength in 10 – 15 minutes at room temperature curing. AT420 provides high strength and very flexible bonds to the above reference surfaces, with generally no preparation effort. AT420 bonds very strongly to steel, stainless steel, and aluminum metals and will allow a great deal of movement of the substrates due to CTE (Coefficient of Thermal Expansion) differences. AT420 adhesives are not UV stable and will yellow over time.