Vicat Softening Temperature (VST)

Vicat Softening Temperature (VST)

Principle: 

The “Vicat Softening Temperature (VST)” can be defined as the temperature against which a flattened needle with a tip of 1 mm² penetrates 1 mm into the surface of a specified sample.

Testing procedure: 

A flat sample with a minimal surface of 10 x 10 mm and a thickness between 3 and 6 mm is placed into the tester:

A load of 10 or 50 N is applied to the sample. This setup is placed into an oil bath which is heated at a speed of 50 of 120 °C/h till the needle penetrates 1 mm into the material.

Testing applications: 
  • Determination of the softening temperature of a material
  • Comparison of the temperature resistance of materials
  • Standard: ISO 306
Testing PDF: 

Logo

VKC-CENTEXBEL is a competence centre assisting the industry in all aspects related to plastic processing, including materials, compounding and recycling.

legal notice

Get in touch

  • VKC-Centexbel Kortrijk
    Etienne Sabbelaan 49
    BE- 8500 Kortrijk
    Belgium
  • +32 56 29 27 00
  • +32 56 29 27 01
  • info@vkc.be
  • www.vkc.be