January 20, 2026
Perfect Colourants & Plastics Pvt.Ltd Announces Participation at PLASTINDIA 2026
Perfect Colourants & Plastics Pvt.Ltd Announces Participation at PLASTINDIA 2026
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Light Fastness
The light fastness of masterbatch is dependent on type of pigments used. The light fastness of the pigments are based on exposure in QUV accelerated weathering tester & assessed on blue wool scale of 1 to 8.
- Scale : 1-Poor - Light Fastness
- Fastness Scale : 8 - Excellent Light Fastness
Heat Stability
Heat stability of pigment is determined by processing temperature at which the shade is retained within specific limit i.e. up to less than equal to 1 for exposure of 5 minutes based on average processing temp. of 200℃ to 280℃. Heat stability is rated on scale of 1 to 5.
- Scale 1 - Poor - Light Fastness
- Fastness Scale 5 - Stable
Migration
The light fastness of masterbatch is dependent on type of pigments used. The light fastness of the pigments are based on exposure in QUV accelerated weathering tester & assessed on blue wool scale of 1 to 8.
- Scale 1 - Heavy Migration
- Scale 5 - No Migration
Food Grade
The light fastness of masterbatch is dependent on type of pigments used. The light fastness of the pigments are based on exposure in QUV accelerated weathering tester & assessed on blue wool scale of 1 to 8.
- ‘Y’ = Food Grade
- ‘N’ = Non Food Grade
