Soldering plastic is often the cheapest option for fusing two pieces of plastic together or repairing a broken object. You will need an electric welding gun and a rod to weld the plastic. The hardest part of this procedure is getting used to the heat produced by the gun. Follow these tips for welding plastic.
Steps
Step 1. Heat the gun for at least 20 minutes
Step 2. Prepare the plastic to be welded
Remove plastic components from the item if possible. Clean the plastic with a mild soap or detergent and water. Dry the plastic with a cloth.
Step 3. Sand the plastic
Find the spot to be welded. Sand the edges with 80-grit sandpaper until they are smooth to the touch.
Step 4. Secure the seams
Join the parts to be welded and secure them with aluminum tape. Make sure you do this by placing them in the exact position where you will need to weld them.
Step 5. Put the soldering rod into the heated gun
It will serve as a guide for the hot air in the welding gun.
Step 6. Slowly move the tip of the gun over the spot to be welded
You will see the plastic melt together. To determine if the temperature is accurate, move the gun near and away from the plastic pieces, working around the area continuously and evenly.
Step 7. Let the plastic cool for at least 5 minutes
Step 8. Sand the seam with 150 grit sandpaper
Step 9. Cover the entire piece of plastic with a water-based solvent
Advice
- Work in a ventilated area.
- You can use clamps to hold the pieces together as you weld them.
- Use gloves and eye protection during this procedure for safety reasons.
Warnings
- The temperature of the welding gun could reach 274 ° C and therefore could cause a fire in contact with flammable objects. When you're done, place the gun on the gun stand to cool it down.
- Do not touch the barrel or tip of the gun when using it.
