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Primary Piping System Installation J I Ep' 1fVE8 A. Cleaning the Bonding Surfaces Several basic adhesive systems are available from Smith Smith Fibercast recommends cleaning all bonding sur- Fibercast.The 7000 and 8000 series adhesives differ in oper- faces before bonding. DO NOT TOUCH THE BONDING ating characteristics and working time(pot life). See Table 6 SURFACES OR ALLOWTHEM TO BECOME C T 1- for recommended usage and approximate number of bonds ATD. per kit.The working life of each kit is based on an ambient temperature of 75•F(24•C). Acceptable cleaning methods are as follows: • Sand all bonding surfaces until contaminated area is re- Smith Fibercast adhesives are a two-component system moved_ However,the sanding operation must be light which must be mixed prior to use.Detailed instructions for ad- enough to prevent changing the taper angle. hesives are provided with each kit.Read these instructions • Cut off contaminated surface and replace with a new ta- thoroughly and follow the recommended procedures.The cure per or sleeve coupling. time and pot-life of the adhesive is dependent on temperature. • Wire bushes may be used Refer to the adhesive instructions.Ambient temperatures above for cleaning T.A.B.surfaces; 100•F require extra care by the fabricator to assure sufficient however,they must be clean working time of the adhesive.Refer to Adhesive Working Life and free of oily contamina- (page 8)for both warm and cod weather conditions. tion. • Dirt contamination can be re- moved b water washing. Beh _ - sure the surfaces are dry befores bonding. NOTE: Using solvent as a cleaning method is optional. If preferred by the customer, use solvent. . Trichloroethylene solvent is available from Smith Fibercast. x Some alternate cleaning solvents available through local hardware or industrial supply houses are acetone,methylene chloride,and methyl ethyl ketone. After cleaning,be sure any residual solvent has evaporated before applying adhesive. DO T USE SOLVENTS THAT LEAVE AILY FILM ON THE BONDING SURFACES. WARNING: Some degreasers and solvents are ex- tremely flammable. Be sure to read warning labels Thoroughly mix the adhesive. Complete informa- ■ on containers. Never use gasoline,turpentine, or tion and safety precautions are diesel fuel to clean joints. packaged with each adhesive kit. ardew Review all safety precautions thor- SOLVENT DISPOSAL:Solvent is classified as a hazardous ouhly before mixing the waste and cannot be dumped.It can be used as a solvent and al- adhesive. Adhes6we lowed to evaporate during use.Empty solvent cans meet EPA regulations for disposal and can be disposed of in a normal a. When the weather is cool or the manner.These guidelines are based on federal regulations.State adhesive has been stored in a and local regulations and ordinances should be reviewed. cool environment,prewarm the adhesive kits. Be sure all solvent has evaporated before applying b. Empty all of the contents of the hardener bottle into adhesive. the can of base adhesive. c. Mix all of the adhesive with all of the hardener. B. Repairing Weathered Surfaces( V Degradation) NEVER SPLIT A KIT. Do not spill hard- When machined surfaces of pipe and fittings are exposed ener during the mixing process. Cut to direct sunlight for a prolonged period of time the result through the adhesive with the edge could be a foss of bond strength.All machined surfaces that of the mixing stick to assist in mixing have turned yellow or brown in color must be repaired.For the two components. exposed T.A.B.ends cut 1/2-inch minimum off of the end of d. Mix until the adhesive has a uni- the spigot and retaper. Exposed fitting bells and pipe tapers form color and a consistent flow should be lightly sanded with an 80 to 120 grit sandpaper or off the mixing stick. Wipe down emery cloth until the original factory-fresh appearance re- the sides,bottom,and under the turns.T.A.B.couplings cannot be repaired,they must be re- rim of the can with the mixing stick to assure complete placed. mixture. 7 Installation Instructions