The mating surfaces must be clean
and free of grease before bonding. Parts having a single joining surface are
simply pressed against a sponge or felt pad that has been impregnated with
solvent. The quantity of solvent used should be kept to a minimum to avoid
drips and crazing. More complex multi-plane joining surfaces require contoured
solvent applicators made from wood or metal. It may be necessary to allow a
few seconds to ensure sufficient swelling. The parts are then clamped together
with a moderate pressure. The parts are removed from the clamping equipment
and must not be used for a period of 24 to 48 hours to ensure that full
strength has been achieved. Heat can be used to accelerate the overall rate of
evaporation and reduce the cycle time.
