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Iriotec® 8855

Iriotec® 8855 by Merck KGaA, Darmstadt Germany is a laser marking, antimony-free inorganic pigment with little color influence. It is free from intentionally added heavy metal compounds, in line with RoHS or CONEG regulations. It offers heat stability in all polymers under normal processing conditions. It is suitable for diode pumped solid state (DPSS), fiber laser. It shows very good performance in transparent silicone rubber. Iriotec® 8855 is used in plastic components that require high temperature & weather resistance and purity. It is especially recommended for technical aliphatic polymers (PA, POM), but can also be used in all other polymers to create dark markings.

Original Datasheet:
In the United States, Canada and Puerto Rico the performance materials business of Merck KGaA, Darmstadt, Germany operates as EMD Performance Materials.
Select your region for receiving the correct data sheet:
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Iriotec® 8855
Product Type
Inorganic Pigments
Physical Form
Powder, Dry, free-flowing
Bluish grey
Product Launch Date
Oct 7, 2019
Product Status
Applications/ Recommended for
  • PA, Nylon
  • Other Thermoplastic > POM (Polyacetal)
  • Other Rubber > QM, VQM, Silicone Rubber
  • Safety, regulation & environment > Heavy metal-free

Iriotec® 8855 Properties


Value & Unit
Test Condition
Test Method
Processing Temperature
< 750 °C
Titanium Dioxide Content
> 95 %
Particle Size
< 10 µm
(Laser Diffraction Measurement. D90)

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