Q&A for How to Weld Plastic

You can weld plastics such as polypropylene, high density polyethylene, PVC, CPVC, ABS, Lexan, and polycarbonate.

Yes, you can! Make sure the plastic is completely clean first, and sand down any jagged edges. Warm up the iron for a few minutes and run it along the seam where you want the two pieces of plastic to meet until they are soft and pliable, then adjust them so they fit just right. If you want, you can also add some thin strips along the seam and melt them into place to make the weld stronger. Use smooth strokes with the soldering iron to completely weld the pieces together.

Loctite Epoxy Plastic Bonder is supposed to be one of the strongest plastic glues on the market. This glue is resistant to most solvents, humidity, and heat.

Plastic welding is the process of creating a molecular bond between two compatible thermoplastics (polymer material that becomes pliable with heat, and with sufficient temperature, liquid). When cooled, they return to a solid form.

It gives you the ability to fix items instead of replacing them. It's generally much less expensive to repair a broken part than to buy a new one.

A trade/vocation school. Many different skills and certificates can be added to your resume, depending on exactly what you weld for what company. Generally speaking, it takes 8 years of full-time work (minimum) to become a master in most trades, including welding.

The best solution for this is to use fiber glass for the underside and fine fiber glass for the inside, and once the resin and fiber glass has set, sand the whole thing down from the inside until a smooth finish is achieved. You may want/need to recolor the inside of the bath with special bath paint.

Good welds are very strong, even stronger than the base material. It depends on using the correct filler material and getting a clean, consistent weld. If everything goes right, the plastic can last a long time.

You could weld the plastic together. For instance, weld pieces at the corners to form a frame. Then, install the window on the wall as you normally would.