Heat Deflection Temperature (HDT) / Vicat Softening Temperature (VST) TestTest (Polymer)
In stock
Description
The Heat Deflection Temperature (HDT) and Vicat Softening Temperature (VST) tests are important thermal tests used to evaluate the heat resistance of thermoplastic materials.
HDT determines the temperature at which a plastic specimen bends under a specified load, indicating its ability to retain shape under mechanical stress at elevated temperatures.
VST determines the temperature at which a standard indenter penetrates 1 mm into the softened material, indicating the material's softening point.
These tests are widely used in quality control, material selection, product development, automotive, electrical, packaging, and engineering industries to ensure plastics perform reliably at elevated temperatures.
