What process is involved in solvent welding PVC piping?

The process of solvent welding PVC piping involves using a solvent to chemically bond the PVC pipe and fittings together. When a solvent like PVC cement is applied, it effectively softens the surfaces of the pipe and fitting. As the solvent evaporates, it creates a strong bond as the softened PVC materials fuse together to form a solid connection once the solvent has fully cured. This type of joint is particularly effective in providing a leak-free, durable seal under varying pressures and conditions.

Understanding the importance of the chemical bond in the solvent welding process helps clarify how it differs from methods like using heat to weld materials, mechanical connectors, or fasteners such as screws and bolts. Each of those alternatives operates on different principles—either using physical connectors or thermal means—which do not apply to the unique properties and adhesives used in solvent welding PVC.