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Irasorb CTO M10

Technical Datasheet | Supplied by Keeling & Walker
Irasorb CTO M10 by Keeling & Walker is an infrared filter and laser marking additive. It is a patent protected high efficiency NIR absorber based on modified tungsten oxides. It is a highly efficient infrared absorbing material, which has been especially designed to be used in extrusion processes in the polymer industry. This additive also generates white marks on dark polymers. Irasorb CTO M10 disperses very well in PET, PC and PMMA to give transparent films.
Product Type
  • Other Additives for Thermoplastics > Infra-red Filters
  • Other Additives for Thermoplastics > Laser Marking Additives
Chemical Composition
Modified tungsten oxide
Physical Form
Dark blue
Product Status
Applications/ Recommended for
  • PC
  • PET
  • PMMA
  • Extrusion
  • Visual aspect & aesthetics > Transparency

Irasorb CTO M10 Properties


Value & Unit
Test Condition
Test Method
Surface Area
10 - 30 m2/g
(Brunauer-Emmett-Teller (BET) Theory)
< 15 %
(At 1000 nm)
Bulk Density
1500 - 2200 g/I

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