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IMPORTANT - READ THIS FIRST Before beginning the actual joints that are not locked up during Cool weather conditions require assembly procedures, read and installation may pass an initial special procedures when bonding make sure you and all individuals steady pressure test but can fail at a pipe and fittings. The adhesive is involved in the installation thor- later date due to reduced bond very viscous (thick) when it is cool oughly understand the following strength caused by the thick adhe- or when it is applied to cool pipe information and precautions: sive. Therefore, it is essential that or fittings. This thick adhesive can the installation crew be familiar actually be stiff enough to prevent Matching taper angles for the with the joint concept and under- complete joint lock up. There are spigot and the bell make it possible stand the importance of com- different installation procedures to mechanically "lock up" a joint pletely inserting and locking the for both warm and cool weather by wedging the spigot into the bell. spigot into the bell.The mechanical installations.These procedures are This produces a very thin line of locking of the joint is absolutely often overlooked when a crew adhesive called the bond line, or essential tinstalls piping when there are glue line,which is only a few thou- develop the full significant temperature variations sandths of an inch thick. In all strength of the joint. throughout the day or week. cases, the bonding surfaces must be clean and dry before applying Using mechanical force (such as All bonding surfaces must be adhesive. hammering against a wooden block factory fresh in appearance.When placed against a fitting or bell end end caps have been lost, surfaces joint strength is essentially con- of pipe) helps achieve lock up. will weather and cause a signifi- trolled by the adhesive thickness Note:This is the same mechanical cant loss of bond strength. When between the two matching tapered lock of matching tapers that is surfaces are weathered, retaper surfaces.The adhesive is relatively commonly used on machine tools. spigots and sand bells to achieve a brittle in thick sections and fails For T.A.B."(threaded and bonded) factory fresh appearance(See Sec- easily if the bond line is too thick. joints, special T.A.B. wrenches tion 8).NOTE:T.A.B.COUPLINGS The mechanical lock determines are recommended to achieve the THAT HAVE BEEN WEATHERED adhesive thickness. mechanical lock up in the joint. MUST BE REPLACED. INSTALLATION TRAINING SEMINARS Smith Fiberglass Products offers proof of attendance. To assist installers with proper free, in-depth training seminars installation of fiberglass piping covering both primary product Due to the ever-increasing need systems, the Fiberglass Petroleum and secondary containment pip- for manufacturer-trained installers, Tank&Pipe Institute has prepared ing installation procedures. The we highly recommend that anyone an installation checklist, "Fiber- training seminar involves hands- directly involved in underground glass Piping Systems Installation on participation, and each atten- piping installations attend the Checklist for Underground Petro- dee receives a complete Smith Smith Fiberglass Products installa- leum Pipe."This sheet is included Fiberglass Products petroleum tion training seminar. For current in Smith Fiberglass Products petro- marketing catalog containing information on training seminars, leum marketing catalogs. For a installation manuals used during contact your local Smith Fiber- copyof this checklist,contact your the seminar. Each installer attend- glass Products distributor or local Smith Fiberglass Products ing also receives documentary representative. distributor or representative. t