- 1). Clamp the work pieces together in the way they are to be welded, then place them on a solid work surface you can weld on without having to move or shift the PFA parts around.
- 2). Feed the PFA welding rod into the forced hot air plastic welder. The hole into which the filler rod is inserted is located at the tip of the welder and will be the same size as the welding rod.
- 3). Turn on the welder and allow it to heat up. Position the welding tip at a 45-degree angle to the workpieces, then feed the welding rod into the welder so it extrudes directly onto the joint between the two parts being joined.
- 4). Draw the welder backward along the length of the weld seam, depositing the molten PFA welding rod as you go. Once the part is fully welded, allow the plastic to cool completely before moving the work pieces. This may take between 10 and 15 minutes, depending on the surrounding air temperature.
- 5). Clean the PFA welding rod out of your forced air welder to prevent it from contaminating future welds you may make on other types of plastic.
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