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 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

  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Parameter Norm
    Tensile strength at yield 60 MPa 50mm/min DIN EN ISO 527-2
    Tensile strength 60 MPa 50mm/min DIN EN ISO 527-2
    Modulus of elasticity
    (tensile test)
    2700 MPa 1mm/min DIN EN ISO 527-2
    Notched impact strength (Charpy) 6 kJ/m2 max. 7,5J DIN EN ISO 179-1eA
    Elongation at break (tensile test) 32 % 50mm/min DIN EN ISO 527-2
    Flexural strength 81 MPa 2mm/min, 10 N DIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    2400 MPa 2mm/min, 10 N DIN EN ISO 178
    Ball indentation hardness 140 MPa ISO 2039-1
    Impact strength (Charpy) 110 kJ/m2 max. 7,5J DIN EN ISO 179-1eU
    Elongation at yield (tensile test) 11 % 50mm/min DIN EN ISO 527-2
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Parameter Norm
    Service temperature 100 C long term NN
    Service temperature 140 C short term NN
    Glass transition temperature -60 C DIN EN ISO 11357
    Melting temperature 168 C DIN EN ISO 11357
  • product-technical-detail-collapse-item-2-lvl-1
    Other properties Value Unit Parameter Norm
    Resistance to hot water/ bases (+) - -
    Resistance to weathering - - -
    Flammability (UL94) HB - corresponding to DIN IEC 60695-11-10;

Stock program