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Home / Materials Selection / Properties of Engineering Plastics

Dimensional Stability

 

Material Dimensional Staility Rating Comments
High Perform. Mats
Various
Some HPM's have exceptional dimensional stability. See HPM data page
PETP
Excellent
Acetal
Excellent
Bakelite
Good
PTFE (Virgin)
Moderate
25% glass filled PTFE has a much lower expansion rate and is one of the most dimensionally stable materials
UHMWPE
Moderate
HMWPE
Moderate
HDPE
Moderate
Polyurethane
Moderate
Polypropylene
Moderate
PVC
Moderate
Fairly high thermal expansion rate
Nylon 66SA
Moderate
High thermal expansion rate
Polycarbonate
Moderate
High thermal expansion rate. An expansion clearance should be taken into consideration
Acrylic
Moderate
High thermal expansion rate. An expansion clearance should be taken into consideration

 

Materials have been colour-coded based on their maximum continuous operation temperature in °C in air. Coding is as follows:

 

260 250 130 121 110 110 95 90 90 85 80 80 60 50

 

For more details see Min/Max Operating Temperature.

 

For a detailed specification sheets on plastic materials, or more specific information on materials and their properties please contact us.



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