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The purpose of primer is to begin the chemical reaction that softens PVC and to provide an even prepped surface for the solvent cement. As you may know, PVC joints are not glued together exactly, but fused through a chemical change. The softer the outer layer of your PVC, the better it will cement in your joint.
Do you let PVC primer dry before cement?
2 Answers. 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.
Do you need purple primer on PVC pipe?
Purple Primer can be used with all types, schedules and classes of PVC and CPVC pipe and fittings. A low VOC formulation. In most cases a successful solvent cement joint can be made without using a primer. But, if you want to increase the probability of making a successful joint, using a primer is the thing to do.
How long do you let PVC primer sit?
Both primer and cement are important. Apply and glue – hold in place for about 5 to 10 seconds. You will be good to go!May 30, 2010.
How does PVC primer and glue work?
Joining a pipe to a pipe fitting requires specially formulated primer and cement—no ordinary adhesive but a chemical solvent that melts the surface of the PVC and then quickly re-hardens to fuse the pieces together. The result is an airtight, leak-proof bond similar to what you get with welding metal.
Is PVC primer the same as glue?
The cement is simply an adhesive that holds the pipes together but the primer actually dissolves the surfaces of the PVC so that when a pipe and fitting are connected, they adhere and become a seamless material.
How do you get PVC primer off?
The longer the primer sits on the surface, the harder it becomes to remove. Dampen a clean white cloth with 4 to 5 drops of clear PVC cleaner. Apply several more drops of the clear cleaner if the cloth becomes dry, and continue blotting until the purple primer stain is no longer visible.
Can you glue PVC twice?
In fact, you can, as long as you accept that it will not provide a bond as strong as “cold welding” with PVC cement. As answered before, PVC cement is not a glue but a solvent, melting the PVC so you can “cold weld” it without using heat.
Does oatey all purpose cement need primer?
The PVC Cement is recommended for potable water, pressure pipe, conduit and DWV applications. Oatey products have earned the trust of plumbing professionals for over 100 years.Oatey® 4 oz. PVC Regular Clear Cement and Purple Primer Handy Pack. Color: Clear Size: 4 oz.
How long after gluing PVC can I run water?
After joining the pipes you must hold them together for 30 seconds until the plastic hardens or they can slip apart. It takes another 15 minutes for the joint to harden to a point at which it can withstand water pressure and two hours to fully cure.
What is the difference between purple and clear PVC primer?
The purple is so that the building inspector can tell that the plumber used primer by visual inspection. Clear is fine to use.
Is gluing PVC primer necessary?
Usually PVC jobs require about half the amount of primer as they do cement. In short, primer is your friend. It may not be completely necessary on all jobs, but we recommend you take all the precautions available to ensure your joints are leak-free and as strong as possible.
What is the difference between PVC cleaner and PVC primer?
The cleaner is formulated to remove surface dirt and any oil or grease that exists on the pipe from the manufacturing process. Primer/cleaner and primer contain more aggressive solvents and will soften the pipe surface to allow the solvent cement to penetrate more effectively.
Can you use too much PVC cement?
Using too much solvent cement can cause the PVC to dissolve to the point of weakening the joint, lessening the integrity of its waterproof capabilities. However, if you use too little solvent cement, the pieces may not be fully welded together, which may lead to leaks or other problems down the road.
How long does it take for purple PVC primer to dry?
Apply purple PVC primer to the outside of the PVC pipe and to the inside of the PVC fitting. Allow the primer to dry, which should only take about 10 seconds.
Does PVC primer expire?
Know which products are closest to expiring and should be used sooner.Defining shelf life. Product Shelf Life (from date of manufacture) PVC Cements, Primers, and Cleaners 3 years ABS Cements and Cleaners 3 years CPVC Cements 2 years.
Can I use acetone as PVC primer?
Acetone is one of the main ingredients in priming fluid, after all. So, will acetone do the same job as the PVC primer? Well, yes it can be moderately effective in cleaning and softening the pipe, readying it for the PVC cement.
What is oatey purple primer used for?
Oatey® Purple Primer is an NSF-listed, aggressive primer for use on all schedules and classes of PVC and CPVC pipe and fittings. It removes contaminants such as surface dirt, grease and grime as well as softens the pipe surface to allow for a fast, secure solvent weld.
