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Solvent bonding differs from adhesive bonding, because the solvent does not become a permanent addition to the joined substrate. [4] Solvent bonding differs from other plastic welding processes in that heating energy is generated by the chemical reaction between the solvent and thermoplastic, and cooling occurs during evaporation of the solvent ...
Plastic welding is welding for semi-finished plastic materials, and is described in ISO 472 [1] as a process of uniting softened surfaces of materials, generally with the aid of heat (except for solvent welding). Welding of thermoplastics is accomplished in three sequential stages, namely surface preparation, application of heat and pressure ...
Weld-On is a division of IPS Corporation, a manufacturer of solvent cements, primers, and cleaners for PVC, CPVC, and ABS plastic piping systems. Weld-On products are commonly used for joining plastic pipes and fittings .
Polypropylene fittings for solvent welding. A solvent is applied to PVC, CPVC, ABS or other plastic piping to partially dissolve and fuse the adjacent surfaces of piping and fitting. Solvent welding is usually used with a sleeve-type joint to connect pipe and fittings made of the same (or compatible) material.
Due to its specific composition, bonding CPVC requires a specialized solvent cement different from PVC, with high-strength formulas being first introduced in 1965 by Genova Products, followed by alternatives such as IPS's Weld-On line. Primers, solvent cements, and bonding agents for CPVC reportedly must meet ASTM F493 specifications, differing ...
Because the solvent can permeate the plastic, the solvent evaporates out through the surface of the plastic, causing the weld to drop out of solution and solidify. A common use for solvent welding is for joining PVC ( polyvinyl chloride ) or ABS ( acrylonitrile butadiene styrene ) pipes during plumbing , or for welding styrene and polystyrene ...