Heat transfers through contact rather than hot air so welding work can be carried out next to heat sensitive parts (for example cables, textiles, foams) because the welding temperature is lower.
Thin parts and sheets can be welded. There is no uncontrolled heat transfer which means less wrinkling in the parts to be welded. This plastic welding method means less problems with burning holes into parts you want to weld and no oxidation of parts by hot air. Oxidised layers on welding rod and parts to be welded normally do not need to be ground away before welding work can start. . Ideal method to close small and bigger holes. Problematic plastics that absorb water are much easier to weld (for example ABS, PC, PA). Even foamed plastics can be welded.
