Temperature Guidelines

Resin:
Melt Temperature:
Softening Point:
Heat Deflection Temperature:
Glass Transition Temperature:

Polypropylene (PP)
329°F (165°C)
310°F (154°C)
194°F (90°C)
14°F (-10°C)

* Polypropylene products produced for some filtration applications are made from resin that complies with FDA regulations for food contact. The regulation compliance is product number dependent / specific.

* Impact at cold temperatures is likely to cause strand cracking or breakage

Resin:
Melt Temperature:
Softening Point:
Heat Deflection Temperature (66 psi):
Low Temperature Brittleness, F₅₀:

Low Density Polyethylene (LDPE)
230°F (110°C)
185°F (85°C)
113°F (45°C)
-166°F (-110°C)

* All natural LDPE products are manufactured with resin that complies with FDA regulations for food contact.

Resin:
Melt Temperature:
Softening Point:
Heat Deflection Temperature:
Low Temperature Brittleness, F₅₀:

Medium Density Polyethylene (MDPE)
257°F (125°C)
185°F (85°C)
113°F (45°C)
-166°F (-110°C)

* Made from resin that is not compliant with FDA regulations for food contact, unless otherwise specified (product number dependent / specific).

Resin:
Melt Temperature:
Softening Point:
Heat Deflection Temperature:
Low Temperature Brittleness, F₅₀:

High Density Polyethylene (HDPE)
275°F (135°C)
248°F (120°C)
158°F (70°C)
-166°F (-110°C)

* Made from resin that is not compliant with FDA regulations for food contact, unless otherwise specified (product number dependent / specific).

Resin:
Specific Gravity:
Max. Continuous Service Temp:
Min. Continuous Service Temp:
Melt Temperature:
Heat Deflection Temperature:

Polytetrafluoroethylene (PTFE)
2.14
500°F (260°C)
-100°C
608-644°F (320-340°C)
250°F @ 264 psi

* PTFE products are stabilized to control open area percentages. As product thickness increases so does the likelihood of shrinkage in applications where temperatures are elevated.

Resin:
Melt temperature:
Max. continuous use:
Max. short term temp:
U / V resistance:

Polyester (PET)
495°F (257°C)
270°F (132°C)
455°F (235°C)
Good

Resin:
Melt Temperature:
Softening Point:
Heat Deflection Temperature:
Glass Transition Temperature:

Nylon 6 (N)
428°F (220°C)
374°F (190°C)
347°F (175°C)
122°F (50°C)

* Nylon products produced for some filtration applications are made from resin that complies with FDA regulations for food contact. The regulation compliance is product number dependent / specific.