One-part and two-part adhesives are used mainly for structural bonding as they have a very good adherence to metals, glass and plastic materials, a high tolerance to slightly contaminated and oiled surfaces, and a relatively short curing time compared to epoxy resin-based or polyurethane-based reactive adhesives. Some typical applications are listed in Table 5.6.
MMA-based adhesives can be used in a temperature range from -50 °C to 100 °C and, for a short period, they can even support temperatures of up to 180 °C. The viscosity of mixed two-part methacrylates can be customized so as to allow large gaps to be bridged. Various degrees of elasticity are also easily generated.
Table 5.5 Temperature requirement for a 10-h decomposition half-life for different peroxides [39].
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Table 5.6 Applications of two-part and one-part acrylate adhesives.
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