Thermochromic Masterbatch is temperature sensitive and changes colour as its temperature changes.
There are two variants
Becoming a lighter colour as the temperature rises and reversing back to the original darker colour as the temperature is reduced below the activation temperature point.
Becoming a darker colour as the temperature is cooled and reversing back to the original lighter colour when the temperature is raised above its activation temperature point.
Colour to colour, colour to translucent and translucent to colour are available, many variations can be blended.
Colour references are approximate and will be influenced by plastic thickness, addition rate, and type and clarity of plastic used.