edge to face the edge should have a 10o chamfer to allow a sufficient quantity of adhesive into the joint. Dispense the refrigerated cement directly into the joint using a suitable dispenser. It is best to do this in only be done at least one hour after the adhesive has set. Non-thermoformed components can be heated

dissolved in solvent for the bonding of acrylic sheet for interior use only. Tensol 12 hardens as the solventCover the container and allow the mixed adhesive to stand for 5 minutes to allow the larger air bubbles to shrinks on curing allowance must be made for this when making butt joints and fillet joints. When bonding Tensol 12 is designed for the bonding of cast acrylic sheet intended for interior use only. Extruded acrylic applying the adhesive and assembling the parts. Dispense the adhesive from a small polythene bottle The bonds obtained using Tensol 70 are of approximately the same strength as the acrylic sheet. Typical

They should be left twenty four hours before taking out. This glue is very strong as it 'fuses' both for 3 to 4 hours at 80oC. Thermoformed, highly stretched components may be heated for 4 to 5 hours at 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’). Extraction and ventilation is vital. Tensol releases fumes, dangerous to inhale. The fumes can ignite under the wrong circumstances. For this reason, extraction / ventilation is vital. Wear suitable protective clothing. Thoroughly mix the adhesive by stirring, taking care to entrap as little air in the adhesive as possible. TheTensol 70 is designed for bonding cast acrylic sheet. It will also bond extruded acrylic sheet, but will cause

Do not use adhesive that has been mixed for more than 20 minutes as it will be difficult to use and give Joints will be set sufficiently to be handled after 3 hours but must not be machined for at least 24 hours applications, 1 to 2 weeks should be adequate. To obtain the maximum strength more rapidly the bond can 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.

RETURNS

Accurately weigh 5 parts of Part B into 100 parts of Part A. It is important that this is done accurately assembly. After 4 hours cure the parts can be lightly machined but, for the best results, the joint should be Before using Tensol 12 store the adhesive at 5 to 10oC for 12 hours to reduce solvent evaporation between