Thoroughly mix the adhesive by stirring, taking care to entrap as little air in the adhesive as possible. The

Select an adhesive (Tensol), which joins plastics such as acrylic, together permanently. Tensol is also called ‘dichlormethane methyl methacrylate’ and produces a chemical weld between two surfaces. Tensol is applied to the surfaces to be glued and they are pressed together. The surfaces are clamped for 24 hours. of the Part A. The Part A is a viscous mixture of acrylic polymer dissolved in monomer. The Part B is aThey should be left twenty four hours before taking out. This glue is very strong as it 'fuses' both

sheet can be used if it is suitably annealed prior to bonding. Tensol 12 must not be used with Perspex ME, applying the adhesive and assembling the parts. Dispense the adhesive from a small polythene bottleonly be done at least one hour after the adhesive has set. Non-thermoformed components can be heated An alternative to a vice is a set of G-Cramps. These spread the pressure across the surfaces being joined, in much the same way as a vice. Notice the wood lengths that protect the ‘plastic’ and evenly distribute the pressure from the clamps. edge to face the edge should have a 10o chamfer to allow a sufficient quantity of adhesive into the joint. Tensol 70 is a two component, acrylic adhesive which hardens at room temperature by the polymerisation Liquid solvent is applied using a brush or a syringe (often supplied with the glue). As it is a liquid, it is drawn along joints and surfaces through a process called capillary action. Care must be taken, as the glue damages exposed surfaces (as it melts the surfaces of the materials forming a ‘weld joint’).