Examples of Application

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].

Product

Decomposition temperature (°C)

Dilauroyl peroxide

62

Dibenzoyl peroxide

72

tert-Amyl peroxyneodecanoate

47

tert-Butyl peroxybenzoate

104

Table 5.6 Applications of two-part and one-part acrylate adhesives.

Industrial branch

Application

Electric motors

Glass

Audio

Automobile

Commercial vehicles

Fixation and bonding of magnets

Bonding of solar cells, door hinges, glass furniture, mirrors Bonding of loudspeakers and accessories

Bonding of subsequentlyassembled sunroofs, bonding ofbrake lights Bonding of panels in busses and rail vehicles, bonding of reinforce­ment elements in ships

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