How do you prep PVC sch 40 pipe for glue ?

Question

I heard 4 differnt ways at home depot . They were getting pretty heated .1 said purple primer , 1 said sand it , 1 said use clear cleaner ,& 1 said just use the heavy duty glue by itself . I was rolling , I thought they were going to come to blows !

Answer 1

Take it from me, the master plumber of OHIO.
Once upon a time you did have to sand it, but the exturding process no longer causes the outer "shell" to harden.
The difference between "priming" and a "cleaner" is the depth that the solution will soften the PVC to accept the solvent weld.
Here is what you do:
1. Make sure pipe surface and fittings are clean of dirt and oil.
2. Apply a coating of PVC cleaner to the end of the pipe and the inside of the fitting recieving the pipe. Make sure all surfaces that will be in contact are wipe thoroughly with the cleaner.
3. Wait a seconds for most of the cleaner to dry.
4. Apply PVC "cement" (its actually a solvent weld) to both the pipe and fitting.
5. Push the pipe in the fitting and rotate 1/4 turn. Hold pipe and fitting together for about a minute as it will want to back out.
6. Wipe off excess cement. (I use the cleaner for this)
7. Drains can be used in about 1 hour. Pressure piping such as water lines need to wait 24 hours, but I've had luck with waiting only 8 hours

Answer 2

I clean the cut edges with sand paper or emory cloth, use the purple primer on both ends to be connected, use either pvc glue (cold water, white pvc, cpvc for cream color pipe for hot water, or both white and cream, or the very fast setting glue, depends on the application), smear it into the fitting and then the pipe, or vise versa, push together and twist 1/4 turn at the same time, and hold in place for a minute to prevent the joint from pushing apart, wait awhile for the joint to set up and use.

OR just read the directions on the back of a can of glue, the mfg will know the best way for their product. Hope this helps.

Remember this, Home Depot and Lowes and such just hire people to work, some may know a little about what you need, but chances are the guy helping you is from the paint dept or something. Real plumbers and electricians and such don't work at places like that, they work in the real world where the real money in, not for $8.00 and hr. Good luck

Answer 3

Odds are that the pvc cement alone will suffice, but why chance a leak when it's so easy to ensure against it?

Make sure that there are no rough edges on the cut end of the pipe. Use emery cloth or sandpaper, or if you are going to be working on such projects in the future, you may want to invest in the purchase of modestly priced special tools made for the purpose. Use the purple solvent primer on the pipe and the fitting to assure that there is no oily substance on the surfaces to be glued which might interfere with bonding.

Cut and fit all pipes and fittings before gluing, then separate and glue one joint at a time. Depending upon what you are connecting with, sometimes it is necessary to glue certain joints before others, Think the assembly through before you glue. The good thing is that even if you have to redo all or part, the materials are inexpensive.

Answer 4

The sand paper would be to remove any burrs from the pipe end left over from cutting (be sure to knock off burrs from inside the pipe too). Then on both surfaces purple primer, then glue. There are glues that say no primer required (read the label) but it wont hurt to prime before using this type either - hope this helps.

Answer 5

I think priming and cleaning solutions do pretty much the same things as far as PVC is concerned. I've used the purple stuff when I've glued PVC before. Don't sand it. PVC "glue" isn't like regular glue, it actually chemically melts the plastic (which is why you put it on both pieces) and then they bond when the reaction finishes, so sanding is pointless.
Just make sure you use the types for "potable" water if it is a supply line.

Answer 6

Deburr pipe where it was cut you can use either Clear Primer or purple primer on both pipe & Fitting Then Glue Both Hold it together about 30 seconds your done.

Answer 7

Deburr the inside and outside edge of the pipe. Use purple cleaner, then swab on the PVC cement. Put fitting on completely, then turn, 1/4 turn.

Answer 8

Gluing Pvc

Answer 9

purple primer is the way to go, we just remodeled our kitchen and bath and did all new pvc runs for sinks and bathtub, be careful though it WILL STAIN anything it comes in contact with, it will also melt vinyl flooring just ask my husband.

Answer 10

The outside diameter of each pipe size remains the same, and the inside decreases with the heavier schedule. The pressure rating will then be lowered to the thinner pipe sizes rating.