CPVC glue, also known as solvent cement, is specifically formulated for use with CPVC pipes and fittings, offering a unique chemical composition tailored to withstand higher temperatures compared to standard PVC. While CPVC glue can technically create a bond when used on PVC materials since both are types of plastic, it's not recommended. The reason lies in the differing thermal properties and potential chemical incompatibility, which might not provide the desired strength or reliability for PVC applications. For optimal results, it's advisable to use the glue that matches the material you're working with: PVC glue for PVC materials and CPVC glue for CPVC materials. This approach ensures the integrity of the plumbing or any project you're undertaking, reducing the risk of leaks or failure.

Gluing polypropylene can be challenging due to its non-porous, oily surface that resists most common adhesives. For effective bonding, start by cleaning the surface with isopropyl alcohol to remove any oils or contaminants. Next, treating the surface to increase its adhesion potential is crucial; this can be achieved either by lightly sanding the area with fine-grit sandpaper or by using a plasma treater, if available. Once the surface is prepared, apply a polypropylene adhesive—a type specifically formulated for this plastic. Epoxy designed for plastic or a polyolefin adhesive are usually most effective. Apply the adhesive as per the instructions, press the pieces together firmly, and allow adequate time for curing. Always wear protective gloves and work in a well-ventilated area to ensure safety.

Polyvinyl chloride (PVC) is a popular and versatile thermoplastic polymer widely used in construction, healthcare, electronics, and automotive industries, among others. The monomer unit that forms PVC is vinyl chloride (VC), which has the chemical formula C2H3Cl. The structure of the vinyl chloride monomer consists of two carbon atoms double-bonded to each other, with one carbon atom bonded to two hydrogen atoms and the other to a chlorine atom. This structure is what gives PVC its unique properties - durability, resistance to environmental degradation, and ability to be plasticized or softened with the addition of phthalates. In polymerization, multiple vinyl chloride monomers connect through the breaking of the double bond between the carbon atoms, forming long chains of PVC. The process of polymerizing VC into PVC can involve several methods, including suspension, emulsion, and bulk polymerization, each providing different characteristics to the final product.