Plastic Welding?

[Gunguy45]

Not sure of what you need to use...but PP probably stands for PolyPropelyene

[midunno]

i only recently learned about "plastic welding" it's all good info to see here. soem question i woulda never though of.. an answer to go with 'em!! fabulous! thanks.

[tjb330]

I purchased the a plastic welder from Harbor Freight for $80.00it had temp control and internal blower, the best plastic welder they had. I tried using this thing for a week on pvc pipe, taking care of the 3 important points; cleaning, same material and rods, and temp settings, bottom line, I got a refund. Don't know if I had a bad welder or a poorly designed tool (junk). Good thing about Harbor Freight refunds are no problem.
Sears has a Urethane Supply 5600 ht model 6 airless plastic welder. I am wondering if anyone has used this welder with any degree of success.

[GregH]

I have a similar welder and have used it with mixed success.

Some materials can not be welded and PVC pipe could be one of them and if you can weld it you need a great deal of practice to get it even half right.
What rod did you use?
The best rod is a piece of the material you are welding.

[tjb330]

I bought rods from harbor freight marked for pvc.

[kevyluv]

Hello I was wondering if any of you can identify this plastic for me and the appropriate type of welder to duplicate what you see in the pictures. What you see in the pictures are jet logs for commercial dredges. The material is 1/2" thick. I was told by another dredger that he made some pontoons out of the same stuff that was 1" thick. He told me the material was lighter than water so it would float. Thanks -Kevin

[trashman]

Originally Posted by Daxman77

I have been welding and fabricating plastics for about 7 years. If you guys have any peticular questions, I would be happy to answer them for you.

Dax

how do you distinguish between the different types of plastics? Is there some test to tell which type of rod to use? thanks