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Polymer Additives
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Polymer Additives
by SpecialChem
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Iriotec® 8208

Iriotec® 8208 by Merck KGaA, Darmstadt Germany is a laser sensitive granulate. It allows for a dark marking that is not dependent on the polymer.
  • The advised dosage is 1-3%, with a processing temperature above 160°C.
  • It has the best contrast and marking speed in the class, as well as the widest process window.
  • Antimony trioxide (65-75%) is encapsulated in microspheres and embedded in an impermeable polymer matrix (polyethylene, carrier; 25-35%).
  • Iriotec® 8208 can be pre-compounding, used as a dry blend, or given using gravimetric or volumetric dosage.
Product Type
Other Additives for Thermoplastics > Laser Marking Additives
Chemical Composition
Antimony trioxide embedded in polymer matrix
CAS Number
1309-64-4, 25087-34-7
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