laser markable plastic POM-C / acetal

Ensinger's TECAFORM AH LM white is a modified POM-C which contains a special additive that allows for a very high degree of contrast when marked with laser etching plastic technology. As plastic applications become increasingly critical, and the desire for improved traceability of finished plastic parts increases concurrently, plastic laser marking has likewise become more necessary and desirable than ever before. The laser markings exhibited by TECAFORM AH LM white manifest themselves as dark grey or black in color, in contrast to other more simple color modifications, which result in a less visible color shift that is more light grey or white when exposed to plastic laser input and only barely visible. This very high contrast of plastic laser marking in TECAFORM AH LM also makes possible the use of very small font sizes necessary for the smallest part surfaces. Laser markable plastic acetal ensures compliance to traceability requirements in both food and pharmaceutical industries, and also meets legal and agency requirements associated with those industries such as FDA and EU 10/2011. TECAFORM AH LM white laserable plastic acetal copolymer is available as a stock item in the form of sheets and round bars with short delivery times. An alternative color, TECAFORM AH LM grey can also be manufactured on request.



Chemical designation
POM-C (Polyacetal (Copolymer))
1,41 g/cm3

Main Features

  • laser-markable
  • resistent to cleaning agents
  • high strength
  • high toughness
  • good machinability
  • difficult to bond
  • good slide and wear properties

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Tensile strength at yield60MPa50mm/minDIN EN ISO 527-2
    Tensile strength60MPa50mm/minDIN EN ISO 527-2
    Modulus of elasticity
    (tensile test)
    2700MPa1mm/minDIN EN ISO 527-2
    Notched impact strength (Charpy)6kJ/m2max. 7,5JDIN EN ISO 179-1eA
    Elongation at break32%50mm/minDIN EN ISO 527-2
    Flexural strength81MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    2400MPa2mm/min, 10 NDIN EN ISO 178
    Ball indentation hardness140MPaISO 2039-1
    Impact strength (Charpy)110kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Elongation at yield11%50mm/minDIN EN ISO 527-2
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Service temperature100Clong termNN
    Service temperature140Cshort termNN
    Glass transition temperature-60CDIN EN ISO 11357
    Melting temperature168CDIN EN ISO 11357
  • Other properties
    Other propertiesValueUnitParameterNorm
    Resistance to hot water/ bases(+)--
    Resistance to weathering---
    Flammability (UL94)HB-corresponding toDIN IEC 60695-11-10;

Stock program