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POT LIFE/CURE TIME - The pot life (working time) of adhesives is measured from the time the hardener ` <br />C20HT & SC -10 and resin are first mixed, until the adhesive starts to thicken and harden and can <br />no longer be used. The table indicates the pot life of a 6.8 ounce adhesive kit <br />under various temperature conditions. This table also indicates the cure time <br />required prior to testing of the bond. In hot weather conditions, mixed adhesive <br />may be kept cool by wrapping a damp rag around the can in order to extend the <br />pot life. <br />Temperature °F 60** 70 80 100 120 150 <br />°C (16) (21) (27) (38) (49) (66) <br />Pot Life 45 25 15 8 - - <br />(minutes) # <br />Cure Time* 12 5 4 3 2 1'/z <br />(hours) <br />* The full indicated cure time must elapse prior to testing. See note below for <br />accelerated curing. <br />** At temperatures below 65°F (18°C), an external heat source must be used to <br />force cure the adhesive. The adhesive should be warmed to 70*F (21°C) prior to <br />mixing and application of the adhesive. Adhesive may be force cured by using a <br />hot air gun, an Ameron heating blanket that will completely cover the Containment <br />fitting, or a forced air heater if the trench is covered to contain the heat. At <br />temperatures below 40°F or if it is windy, plug the end of the pipe before curing <br />and wrap insulation over the heat .blanket and fittings, if using heat blankets to <br />cure the adhesive. <br />SEALING SECONDARY After primary lines have been successfully tested, the Containment system can be <br />SYSTEM sealed. For the adhesive to perform properly,_ the pipe and fitting surfaces must <br />be free from contaminants, (e.g., water, soap, oil, grease, dirt, etc.) and lightly <br />sanded. Care must be taken to ensure that each leg of the Containment pipe goes <br />into the Containment fitting straight and is not disturbed until the adhesive has <br />cured. Note that stepping on the Containment pipe before the adhesive is cured <br />can disturb the joints enough to cause leaks. <br />Before bonding the Containment fittings to the pipe, strap a section of pipe to the <br />primary pipe where the Containment coupling fittings will later be installed. The <br />length of this pipe should usually be 11 inches long. This pipe section is to prevent <br />the Containment pipe from being forced out of the Containment fittings by <br />hydraulic action during bonding. <br />0 <br />12 <br />