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l7 <br />' ♦ f.:g Deme .. .. _.... ...r , .. ... <br />1. Cleaning the Bonding Surfaces Note: Use of solvent as a cleaning c. Mix all of the adhesive with all <br />method is o tional of the hardener NEVER SPLIT <br />a. Smith Fiberglass Products has <br />determined that cleaning the <br />bondingsurface is required only <br />when the bonding surfaces, on <br />either pipe orfittings, have been <br />contaminated by grease, oil, dirt, <br />fingerprints, etc. Freshlytapered <br />spigots or factory -fresh spigots <br />and bells do not require solvent <br />cleaning unless visibly contami- <br />nated. DO NOT TOUCH THE <br />BONDING SURFACES OR AL- <br />LOW THEM TO BECOME <br />CONTAMINATED. <br />Acceptable cleaning methods are: <br />• Sand all bonding surfaces until <br />contaminated area is removed. <br />However, the sanding operation <br />must be light enough to prevent <br />changing the taper angle. <br />• Cutoff contaminated surface and <br />replace with a new taper or sleeve <br />coupling. <br />• Wire brushes may be used for <br />cleaning T.A.B. TM surfaces; how- <br />ever, they must be clean and free <br />of oily contamination. <br />• Dirt contamination can be re- <br />moved by water washing. Be sure <br />the surfaces are dry before bonding. <br />Figure 1.6.5 <br />p <br />If preferred by the customer, solvent A KIT Do not s ill hardener <br />1,1,1 trichloroethaneisavailablefrom <br />Smith Fiberglass Products. Some al- <br />ternate cleaning solvents available <br />through local hardware or industrial <br />supply houses are: acetone, alcohol, <br />methylene chloride and methyl ethyl <br />ketone. After cleaning, be sure any <br />residual solvent has evaporated be- <br />fore application of adhesive. DO <br />NOT USE SOLVENTS WHICH LEAVE <br />AN OILY FILM ON THE BONDING <br />SURFACES. <br />•QWARNING: Some degreasers <br />and solvents are extremely <br />flammable. Be sure to read warning <br />labels on containers. Never use gaso- <br />line, turpentine, or diesel fuel to <br />clean joints. <br />If you have any questions, please <br />contact your Smith Fiberglass <br />Prod ucts'representative. <br />b. Bonding surfaces must be dry, <br />so be sure a I I solvent has evapo- <br />rated before applying adhesive. <br />2. Adhesive mixing <br />Thoroughly mix the adhesive. <br />Complete information and safety <br />precautions are packaged with <br />each adhesive kit. <br />a. When the weather is cool or the <br />adhesive has been stored in a <br />cool environment (60° F/ 16° C <br />or below), prewarm the adhe- <br />sive kits. Do not heat above <br />80° F (27'Q! (See Figure 1.6.6.) <br />In some cases, hardeners may <br />crystallize. If this occurs, refer <br />to the installation instructions <br />provided in each kit. <br />b. Empty all of the contents of the <br />hardener bottle into the can of <br />base adhesive (See Figure 1.6.7). <br />13 <br />p <br />during the mixing process. Cut <br />through the adhesive with the <br />edge of the mixing stick to assist <br />in mixing the two components. <br />d. Mix until the adhesive has a <br />uniform color and a consistent <br />flow off the mixing stick (See <br />Figure 1.6.8). Wipe down the <br />sides, bottom, and under the <br />rim of the can with the mixing <br />stick to assure complete mix- <br />ture. <br />1.6.6 <br />Figure 1.6.7 <br />1.6.8 <br />