- Remove the damaged plastic item. Clean damaged areas of the plastic with soapy water or a mild solvent degreaser. It must be clean of any fibers or molds.
- Sand the area of the plastic needing repair. Use sandpaper of 80 grit. Round off edges and damaged areas. Join the damaged parts with foil tape.
- Preheat plastic welding gun for 15 minutes. Determine the temperature needed for the plastic you are welding. Temperatures usually ranges between 500 to 550 degrees F. Moving the tip of the welding gun closer or away from the workpiece will help adjust the temperature.
- Insert the plastic welding rod and damaged plastic into preheated welder. Feed the rod with a steady motion, moving the applicator tip along the joint. Allow enough time to cure. The rod will need to be of the same material as the object being welded.
- Finish sanding. Use sandpaper with 150 grit. Then finish by covering the plastic with a water-based solvent.
How to Weld Plastic
Plastic welding is a process that brings two parts of plastic together through welding. The plastic is cheaper to repair rather than purchasing it new. Cracks, splits and even missing plastic can be repaired by following these steps.
Things You Will Need
- Be sure not to burn the plastic by leaving the welding gun on one spot too long or making it too hot.
- How to Weld PVC Fabric
- How to Repair a Cast Iron Crack Without Welding
- How to Clean Tarnish on Plastic
- DIY Plastic Welding
- What is Nylon Coating?
- How to Clean Dirty Plastic
- How to Repair an Aluminum Pipe
- How to Get Sticky Stuff off Plastic from a Sticker
- How to Clean Cosmoline
- How to Weld Aluminum With Acetylene
- How to Patch Polyethylene Tanks
- How to Clean Mildewed Plastic Furniture
- How to Clean a Craftsman Ratchet
- How to Resolder a Copper Pipe Connection That Leaks