Plastic codes

glass transitionmeltstructure
1 PET, polyester polyethylene terephthalate 69°C 250-260°C semi-crystalline, 30-40%
2 HDPE high-density polyethylene -135°C 130-135°C semi-crystalline, 70-80%
3 PVC polyvinyl chloride 80°C 100-260°C amorphous
4 LDPE low density polyethylene -125°C 105-115°C semi-crystalline, 45-55%
5 PP polypropylene 0 to -10°C 160-165°C semi-crystalline(isotactic, most commercial stuff) or amorphous(atactic)
6 PS polystyrene 95°C 240°C amorphous
9 ABS acrylonitrile butadiene styrene 110°C 105°C amorphous
7 other (acrylic, fiberglass, nylon, polycarbonate, polylactic acid, ...)
7 nylon (many different types) 50°C 215-260°C semi-crystalline, 35-45%
7 PC polycarbonate 150°C 265°C amorphous
7 PLA polylactic acid 150-160°C 180-220°C either, depending on manufature
7 acrylic (many different types) amorphous
7 PCL polycaprolactone -60°C 60°C semi-crystalline?

My heat gun advertises itself as being able to go up to 480°C. Most kitchen ovens can go up to 230°C.

Other measures that might be useful to include: