paperlined.org
trades > fabrication > plastic > low_qty_techniques

ABS

Acrylic

Somebody at my hackerspace recommends trying either this or ABS.

Polypropylene

[1]

"Polypropylene (PP) is one of the easiest thermoplastics to weld"

Polyethylene

[1]

"Another fairly easy thermoplastic to weld is polyethylene (PE)."

PVC

[1]

"can be extremely temperamental"

Sources

  1. IAPD Magazine — tips [HTML version]
  2. Bak-Ag.com — welding guide, contains a table of recommended temperatures for various plastics
  3. Wegener Welding — guidelines, contains many useful details, including a table of temperatures