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2.7.4 Precautions WARNING:ACETONE AND 1. Electric heating collars • Take care not to disturb a com- METHYL ETHYL KETONE ARE EXTREMELY FLAMMABLEApproximate adhesive cure time . pleted containment piping joint when using electric heating when assembling additional joints. When using these cleaners,do not collars on secondary contain- The adhesive must be fully cured smoke or use near an open flame ment fittings is 25 to 35 minutes before applying stress to the (such as near the pilot light or per joint.See Part One,Section assembled joints. Read and burner of a gas appliance). Failure 6and Table 1.6.3 for additional observe the following precautions: to follow this warning can result in heating collar information. serious personal unjury or death. Avoid contact with the adhe- Never use alcohols, gasoline, Two heating collars are required sive and hardener since they turpentine, or diesel fuel to clean for each end of a containment are capable of causing skin and eye joints. fitting bond (See Figure 2.7.1). irritation.Gloves and eye protection must be used. If contact is made, 2.7.5 Adhesive cure 2. Smith Heat Packs flush eyes with water and wash skin IMPORTANT: For alcohol and Chemical heat packs are avail- with soap and water. Do not inhale able in various diameter sizes. hardener fumes; work in well- alcohol-gasoline mixtures, you MUST use DS-8000 series adhe- Two heat packs are required for ventilated areas. sive for bonding, and each bond each end of a containment fitting ZtCleaner containers may be MUST be heat-cured using elect- bond. When using chemical under pressure.Use caution ric heating collars or chemical heat packs, follow the instruc- when removinginner seals es e- tions attached to each pack. � P heat packs. cially in warm weather. Use eye For petroleum products, DS-7000 Curing saddles protection. 1,1,1 trichloroethane is not classified as flammable; series adhesive is used for bond- Curing saddles can be accomp- however,concentrated vapors can ing. These bonds do not require lished bywrapping a heating collar be ignited. When using this heat-assisted curing, but you can over the saddle outlet as shown in cleaner, do not smoke or use near shorten the cure time by applying Figure 2.7.2. For outdoor installa- an open flame. Use with adequate heat. We recommend external tions, place wind shields on both ventilation. Refer to the warning heat to assure full adhesive cure sides of the saddle to prevent heat label on each container. when ambient temperature is loss. Total cure time must be two below 70° F (21' Q. hours for saddles.Allow the saddle If more joint cleaner is needed,use to cure and cool down to ambient 1,1,1 trichloroethane.If 1,1,1 trichlo- After curing, pipe should not be temperature before bonding or roethane is not available,acetone or handled or used until the joint threading in the side run.Do not use methyl ethyl ketone is acceptable. returns to ambient temperature. chemical heat packs to cure saddles. a Figure 2.7.1 Figure 2.7.2 32