Constant welding speed. To achieve a good weld, an even working speed should be maintained. When welding plastics with hot air tools, three variables are critical to achieve a good weld. It is crucial to be able to adjust the temperature on the tool according to the plastic and to maintain the set temperature throughout the welding process. With the Leister high wattage tools, you have the ability to fine tune the temperature through the electronically controlled potentiometer and maintain the temperature precisely.
Pressure is very important.
Without it you can not get plastic to join together. Pressure is applied by pushing down on the welding rod while welding, or if butt welding, on the two edges that are being overlap welded together. Leister manufactures precise speed welding tips that help the welder apply equal pressure throughout the welding process. Time is critical, because if you move too fast or too slow, the quality of the weld will be compromised.