We recommend you use primer on any joints that will have liquid media passing through them. The purpose of primer is to begin the chemical reaction that softens PVC and to provide an even prepped surface for the solvent cement. The softer the outer layer of your PVC, the better it will cement in your joint.Click to see full answer. Simply so, do you let PVC primer dry before cement?No – PVC Primer does not need to ‘dry’ before use – in fact, it needs to be wet to do it’s job and not impede the cement – remember, plumbers in a hurry use this daily and aren’t sitting around waiting for the primer to dry before grabbing the cement.Secondly, does oatey all purpose cement need primer? CPVC and ABS pipes don’t require a primer. According to the folks at Oatey, CPVC cement may be used without primer where local codes permit. This tells me that the priming of CPVC is not necessary. There are other variations in each solvent-cement, but that’s mostly the color and thickness. Also Know, is PVC primer the same as glue? PVC pipe cement does contain the same active ingredient as primer, tetrahydrofuran, which we will discuss shortly. Primer not only removes the glazed, protective top coat on PVC to leave a “rough” matte finish for better bonding of the glue but it also helps with the molecular bond itself.Should I sand PVC before gluing?In know that PVC should be chamfered and even lightly sanded before gluing for better insertion on the fitting (and probably some other reason). What about CPVC, a manual told me to just cut, apply glue and insert the pipe into the fitting keeping pressure. No sanding, no chamfering and no wiping with primer.
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