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Irasorb LM004

Technical Datasheet | Supplied by Keeling & Walker
Irasorb LM004 by Keeling & Walker is a non-toxic, laser marking additive. It is a mixed metal oxide with low color. Irasorb LM004 provides strong black marks with high contrast in PP, TPU and PA.
Product Type
Other Additives for Thermoplastics > Laser Marking Additives
Chemical Composition
Mixed metal oxide
Physical Form
Light yellowish
Product Status
Applications/ Recommended for
  • PA, Nylon
  • PP
  • TPE and TPV > TPU (or TPE-U)

Irasorb LM004 Properties


Value & Unit
Test Condition
Test Method
> 90
Thermal Stability
> 350 °C

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