“Glue” is a term commonly inappropriately applied to the solvent cement process for thermoplastics. It is true that some types of thermoplastics utilize glues, but not all. Don’t let misconceptions about joining methods be the downfall of your project. CPVC materials manufactured to ASTM standards, such as ASTM 441 and ASTM F439, are designed to be chemically welded through a process known as solvent cement welding. It is not a glue.