laser markable plastics 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))
Alternative colors available
1.42 g/cm3

Main Features

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

Target industries


Technical details

  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Condition Test Method
    Tensile strength 8200 psi @73°F ASTM D 638
    Elongation at yield (tensile test) 10 % @73°F ASTM D 638
    Elongation at break (tensile test) 54 % @73°F ASTM D 638
    Modulus of elasticity
    (tensile test)
    293,800 psi @73°F ASTM D 638
    Flexural strength 11,200 psi @73°F ASTM D 790
    Modulus of elasticity
    (flexural test)
    375,200 psi @73°F ASTM D 790
    Compression strength 2700 psi @ 1% Deformation ASTM D 695
    Compression strength 12,260 psi @ 10% Deformation ASTM D 695
    Compression modulus 265,000 psi @73°F ASTM D 695
    Impact strength (Izod) 1.14 ftlbsin @73°F, notched ASTM D 256
    Rockwell hardness 85 - @73°F ASTM D 785
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Condition Test Method
    Melting temperature 336 F ASTM D 3418
    Service temperature 284 F Short Term -
    Service temperature 212 F Long Term -
  • product-technical-detail-collapse-item-2-lvl-1
    Other properties Value Unit Condition Test Method
    Moisture absorption 0.12 % @ 24 hrs ASTM D 570