Volume 13, Issue 4
There are many occasions when solvent welding plastic pipe in 95°F (35°C) temperature and above cannot be avoided. However, by using Weld-On solvent cements and by following our standard instructions with a little extra care as outlined below, successful leak-proof joints can be made in even the most extreme hot weather conditions. Tips to follow when solvent welding in hot weather:
- Store solvent cements and primers in a cool or shaded area prior to use.
- If possible, store pipe and fittings in a shady area before solvent welding.
- Cool surfaces to be joined by wiping with a damp rag. Be sure that the surface is dry prior to applying the solvent cement.
- Try solvent welding the joints during the cooler morning hours.
- Make sure that both surfaces to be joined are still wet with the solvent cement when putting them together.
- Using a primer and heavier, high viscosity solvent cement will provide a little more working time. Vigorously shake or stir the solvent cement before use.
- There can be a greater expansion-contraction factor affecting the pipe in hot weather. We suggest you follow the advice of the pipe manufacturer regarding this condition. Anchored and final connections should be made during the cooler hours of the day.
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