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02/22'99 17:52 N0.034 1?15 <br /> 7 Bonding primary Joint preparation <br /> systems All tapered systems trust be clean,dry and warm for a proper bond. <br /> Clean:Pipe is shipped frorn the factory with end protectors_Avoid contamination from <br /> fingerprints,petroleum fumes,mist and condensation as these are adverse to good <br /> bonding.If a taper becomes dirty,sand it with emery cloth.Never touch the bonding <br /> surface with bare hands atter oleaning or sanding as this will leave an oily deposit. <br /> r————————————- Dry:Adhesivewill not bond to a wet surf2t e.If the taper is wet or moist,dry it with a <br /> The hardener contained in the E blow dryer or heat gun.Do not overheat or bum the pipe. <br /> I adhesive kit may bum the skin. I Warm:Below 50'17(10T), with a blow warm the taper <br /> 1 Avoid inhaling the vapors,Read and I p dryer or heat gun.For best <br /> I observe the label precautions. [ results,adhesive should beat least 50°F when used.Do not store kits in areas above <br /> 100°F(3810),below 329F(O°C),or in the direct sunlight during warm weather.In cold <br /> L———————W` ———J weather warm the resin to at least 50°F but rwt above t 00°F to permit good mixing and <br /> easier application. <br /> Mixing Ameron 620 adhesive <br /> • combine all of both components in the mixing container in the supplied <br /> proportions. <br /> • Nevertry to split a kit <br /> • Mix thoribughly vMh the mixing stick until all streaks are gone and the adhesive <br /> has a smooth,uniform color,Mixed adhesive color is red. <br /> • Do not allow moisture to got into the can. <br /> B20 adhesive is also available in a dual cartridge dispenser.The adhesive is dispensed <br /> through a static mixer and requires no further mixing before being applied to the <br /> bonding surfaces. <br /> Roq;n by coating thecut ends of the pipe -- w- <br /> with adhesive.Then appfy a thin,even coatof <br /> mixed adhesfv8 to the inside of the bell and <br /> to the taperedspigotends(indcafedby 3 <br /> shadfng)or to the anvra tapemdssVkn in <br /> finings oradeptem compfetely wetting&] <br /> machined surfaces wrfh the adhostm.Wipe <br /> offexcws&*wive with the spatula <br /> provided In the kit, ... <br /> Applying Ame"m 520 adhesive w <br /> Excessive amounts of adhesive may cause flow restriction inside the pipe when the <br /> adhesive has cured,or may result in'hydraufic backout'as the adhesivecures. <br /> Hydraulic backout occurs when excess adhesive prevents the joint from maintaining <br /> an interference fit and the spigot backs out of the bell during cure, <br /> Making the joint <br /> After aligning the mating surfaces so that they may be brought together <br /> in a straight line: <br /> + Insert spigot all the way into the bell. <br /> • Twist one quarter of a turn when pushing together to distribute adhesive evenly <br /> and to achieve an interference fit. <br /> • Do not cock the joint. <br /> • Over-insertion of the Joint may collapse the spigot and cause a leaky joint. <br /> ✓f Under-insertion of the joint may also cause a leaky joint. <br /> • 0o not drive the joint together with a hammer. <br /> • do not disturb the joint while the adhesive is uncured. <br /> -» ———— • Do not move adjacent pipe and fittings until adhesive has set. <br /> Do not usa any type of hammer or pat life/cure tans for Ameron 52D adhesive <br /> mallet to make up the joint. <br /> L_o———— __, ———J Pot life Is measured from the time the hardener and resin are first mixed until the <br /> adhesive starts to thicken and harden and no longer can be used.Do not use adhesive <br /> once the can has become hot. <br /> 9 <br />