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4 0 <br />The adhesives are a two -component system that must <br />JOINT PREP be mixed priorto use. Detailed instructions for adhesives are <br />Cleaning the Bonding Surfaces provided with each kit. Read these instructions thoroughly <br />It is recommended that all bonding surfaces be cleaned and followthe recommended procedures. The cure time and <br />beforebondi n g. DO NOTTOUCH THE BONDING SURFACES pot life of the adhesive is dependent on temperature. Refer <br />OR ALLOW THEM TO BECOME CONTAMINATED. to the adhesive instructions. Ambient temperatures above <br />100' F require extra care bythe fabricatorto assure sufficient <br />Acceptable cleaning methods are as follows: <br />0 Sand all bonding surfaces until contamination is <br />removed. However, the sending operation must be IVA <br />enough to prevent changing the taper angle. <br />0 Cut off contaminated surface and replace with a new <br />taper or sleeve coupling. <br />• Wire brushes may be used <br />for cleaning T.A.B. surfaces; <br />however, they must be clean <br />and free of oil contamination. <br />• Dirt contamination can be <br />MTwnd by water washing. <br />NOTE: Using solvent as a cleaning method is optional. <br />Solvent maybe used if preferred by the customer. Some <br />alternate cleaning solvents available through local hardware <br />or industrial supply houses are acetone, methylene chloride, <br />and methyl ethyl ketone. After cleaning, be sure any residual <br />solvent has evaporated before applying adhesive. DO NOT <br />USE SOLVENTS THAT LEAVE AN OILY FILM ON THE <br />BONDING SURFACES. <br />A WARNING: Some degreasers and solvents are <br />1J r I kv, extremely flammable. Be sure to read warning <br />/ I % <br />ff 8 % labels on containers. Never use gasoline, <br />&WZWM3 turpentine, or diesel fuel to clean joints. Be sure all <br />solvent has evaporated before applying adhesive. <br />Repairing Weathered Surfaces (UV Degradation) <br />When machined surfaces of pipe and fittings are exposed <br />to direct sunlight for a prolonged period of time, the result <br />could be a loss of bond strength. All machined surfaces that <br />have turned yellow or brown in color must be repaired. For <br />exposed T.A.B. ends, cut 1h" minimum off of the end of the <br />spigot and retaper. Exposed fitting bells and pipe tapers <br />should be lightly sanded with an 80 to 120 grit sandpaper <br />or Emery cloth until the original factory -fresh appearance <br />returns. T.A.B. couplings cannot be repaired; they must be <br />replaced. <br />R 07. M "_ <br />Several basic adhesive systems are available from FGS <br />Smith Fibercast. The 7000 and 8000 series adhesives differ <br />in operating characteristics and working time (pot life). See <br />Table 6 for recommended usage and approximate number <br />of bonds per kit. The working life of each kit is based on an <br />ambient temperature of 75° F (24° C). <br />working time OT the adhesive. Refer to Adhesive Working <br />Life (page 7) for both warm and cool weather conditions. <br />ADHESIVE MIXING <br />Thoroughly mix the adhesive. Complete information and <br />safety precautions are packaged with each adhesive kit. <br />Review all safety precautions thoroughly before mixing <br />the adhesive. <br />111-71111111 <br />V4 <br />31 <br />