TPU examples of properties

The following general assessments concerning the chemical behaviour at room temperature of TPUs, which are not representative of all grades of TPUs, should be verified by consultation with the producer of the selected grades and by tests under operating conditions. 

Chemical resistance depends on the composition of TPUs and general chemical properties are subject to the compatibility of the fillers and reinforcements with the ambient conditions. K the fillers are well adapted, the chemical properties are the same for filled and neat polymers. 

UV stabilizers are needed Generally unsatisfactory behaviour Generally unsatisfactory behaviour 

Good behaviour with conventional oils, greases, gas oil, fuels without alcohol but certain additives in high-performance oils can be incompatible with the TPUs 

Fuels containing alcohol or rich in aromatic hydrocarbons can cause degradation or unacceptable swelling 

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