No, you cannot use PVC cement on ABS pipe. Using the wrong type of solvent cement will result in a joint that is not properly fused and is likely to fail.
Why Matching Cement to Pipe Material is Crucial
Solvent cement works by chemically softening the surfaces of the pipe and fitting, allowing them to fuse together in a process called solvent welding. This creates a strong, watertight seal. However, this process requires the cement to be chemically compatible with the specific type of plastic used in the pipe and fitting.
As highlighted by Oatey, a reputable source on plumbing materials:
Pipe Material For example, use PVC cement for PVC pipe fittings and ABS cement for ABS pipe fittings. This is arguably one of the most critical steps in the solvent welding process. If a cement and pipe material aren't compatible, then the pipe and fitting cannot chemically fuse together leading to joint failure.
The Correct Practice
The fundamental rule of solvent welding plastic pipe is to match the cement to the pipe material.
- Use PVC cement only for PVC pipe and fittings.
- Use ABS cement only for ABS pipe and fittings.
There are also specific transition cements designed for joining different types of plastic pipe, such as ABS to PVC, but standard PVC cement is not suitable for ABS pipe.
Consequences of Using the Wrong Cement
Attempting to use PVC cement on ABS pipe will prevent the proper chemical fusion required for a strong joint. This can lead to:
- Weak joints
- Leaks
- Complete joint failure
For reliable and safe plumbing or drainage systems, always ensure you are using the correct cement for the specific pipe material.
