How does Vesconite compare with Acetal (POM) (Delrin) ?
Vesconite has much higher wear resistance. Vesconite has higher load carrying capacity and higher surface speed limits and hence PV limits than acetal.
Vesconite has better dimensional stability and lower friction.
Vesconite can be used with much finer tolerances and clearances, owing to much better dimensional stability.
Vesconite's chemical resistance to acids and solvents is much better.
Vesconite machines more easily.
Some data on polyacetal (POM) vs Vesconite :
Tensile yield strength = acetal 65MPa / Vesconite 80 MPa
Design loading = acetal 25 MPa / Vesconite 30 MPa
Thermal expansion = acetal 10 mm/mm/°C x 10-5 / Vesconite 6 mm/mm/°C x 10-5
absorption (saturated) = acetal 0.8% / Vesconite 0.5%
Maximum operating temperature continuous = acetal 100°C / Vesconite 100-120°C
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