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9 *SECTION 6 ♦ Installation If you have any questions,please contact your Smith can. This time is measured from the time the adhesive Fiberglass Products'representative. and hardener are first mixed. Working life is shorter at temperatures above 70°F(21°C)and becomes b. Bonding surfaces must be dry, so be sure all solvent longer as the temperature drops below 70°F(21°C). has evaporated before applying adhesive. Working life is affected by the quantity of mixed adhe- sive as well as by temperature. Use the following 2. Adhesive mixing-Thoroughly mix the adhesive. methods to increase the working life of adhesives: Complete information and safety precautions are packaged with each adhesive kit. Review all safety a. Occasionally stir the adhesive mixture during appli- precautions thor- cation. oughly before mix- ing the adhesive. C b. Cut the adhesive or carton so that the a. When the weatherheight of the car- is cool or the adhe- > e ton is the same as sive has been stored the adhesive can. in a cool environ- ® Line the inside of meat(60'F/16°C or ® the box with rags < below),prewarin ' or paper towels, 75o the adhesive kits. and wet the rags Do not heat above FIGURE 1.6.6 with solvent or ice FIGURE 1.6.9 80°F(27°C)! See (see Fig. 1.6.9). Fig. 1.6.6. In some DO NOT contami- cases,hardeners may crystallize. If this occurs,refer to nate the adhesive with solvent, ice, or water. Small the instructions provided in each kit. ice chests or other containers used with freezer packs or ice bags also work well. b. Empty all of the contents of the Caution: If adhesive becomes warm and starts to hardener bottle Harder 1 harden in the container,discard immediately. DO into the can of NOT USE THIS ADHESIVE TO BOND A JOINT! base adhesive (see Fig. 1.6.7). When adhesive is allowed to harden in the met- Adhesive t al container,the container may reach approxi- c. Mix all of the ad- mately 400°F(205°C). Do not handle hot con- hesive with all of tainers without heavy gloves. This exothermic the hardener. reaction will generate a dense, foul-smelling NEVER SPLIT A FIGURE 1.6.7 smoke. Therefore, place the container outdoors KIT. Do not spill in an open area until it cools. Avoid inhaling hardener during smoke. the mixing process. Cut through the adhesive with the edge of the mixing stick to assist in mixing the 1.6.4 Joint Assembly two components. 1. Bell and Spigot Joint-THE SPIGOT MUST BE d. Mix until the ad- ALIGNED AND LOCKED IN THE BELL. A cocked or hesive has a uni- misaligned joint will result in false lock-up and possi- form color and a ble joint failure either during testing or at a later date. consistent flow off the mixing stick a. When the temperature is below 70°F(21°C),prewarm (see Fig. 1.6.8). the bonding surfaces(after the joint has been cleaned Wipe down the v and the cleaner has evaporated). Caution: sides,bottom, and Evaporation may be slow at extremely low tempera- under the rim of tures. Use a hot air blower and apply heat uniformly the can with the to the bell and spigot until warm(not hot)to the mixing stick to as- FIGURE 1.6.8 touch(see Fig. 1.6.10). If torches are allowed on the sure complete job site(check local codes),use a clean-burning mixture. propane torch. Check temperature by touching out- side of the bell and inside of the spigot to avoid con- s. Adhesive working life-Working life or pot life is the tact with clean bonding surfaces. If hot to the touch, time it takes for the adhesive to harden in the mixing let cool before applying adhesive. If an electric heating RED THREAD IIA Pipe br Fittings — 11