PVC glue, PVC solvent, and solvent cement are all terms that refer to a type of adhesive used to join PVC and UPVC pipes and fittings.
PVC glue is a type of adhesive specifically formulated for use with PVC (polyvinyl chloride) pipes and fittings. It typically comes in a tube or canister and is applied to the surface of the PVC material before it is joined with another piece of PVC
PVC solvent is another term for the same type of adhesive as PVC glue. The solvent in the adhesive helps to dissolve and fuse the PVC material, creating a strong and durable bond.
Solvent cement is a broader term that can refer to any type of adhesive that uses a solvent to create a bond. However, in the context of PVC and UPVC pipes and fittings, solvent cement is typically used interchangeably with PVC glue or PVC solvent.