Deuteron® MK-L is an organic duromeric matting agent that finds applications across a broad spectrum of coating formulations, including water-borne, solvent-borne, and 100% systems. These matting agents can serve as stand-alone additives or be combined with other materials to enhance overall performance. They consist of micronized duromeric plastic powders based on PMU (polymethyl urea). The unique synthesis of Deuteron MK matting agents results in highly amorphous particle structures with a comparatively high surface area (BET), making them excellent matting agents.

Functions: Flattener

End Uses: Solventborne Coating, Waterborne Coating

Features: Abrasion Resistance, Blocking Resistance, Chemical Resistance, Excellent Scratch Resistance, Good Light Stability, Heat Resistance, High Performance, Improved Mechanical Resistance, Matting, Polishing Resistance, Weather Resistance

Technical Data Sheet

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Identification & Functionality

CASE Ingredients Functions

Features & Benefits

Product Features

The use of Deuteron® MK-L especially im- proves the following properties:

  • Good matting effect
  • Low influence on viscosity
  • High mechanical and chemical resistance
  • High scratch resistance and resistance to polishing
  • Support of soft effects.
  • Temperature resistant up to over 200 °C, short-
  • time up to over 300 °C
  • Pleasant touch (can range from "paper touch" to "soft feel")
  • Improved blocking resistance
  • Insoluble in solvents commonly used in coatings
  • Biodegradable.

Applications & Uses

Use Level
1% - 15 %
Product Applications

Deuteron® MK-L can be used in almost all coating applications ranging from water borne and solvent borne to 100 % systems. They can be used as stand-alone additives or in combination with other ma- terials to further improve their properties. Because of the wide range of available particle sizes the Deuteron® MK-L range is suitable for thin and thick film applications.


Dosage Information
  • Typical addition range: 1 %–15 %.
  • The required dosage level highly depends on the system (e.g. binder type, additives, solvent content) and appli- cation parameters. Thus, it is highly recommended to determine the needed addition level by a practical ladder study.
Processing Recommendations

The PMU chemistry in general is highly compatible in a wide range of systems. Due to that Deuteron® MK-L mat- ting agents can be incorporated easily by a high-speed stirrer without the need for specific wetting agents or dispersing aids. They are shear stable in high shear pro- cesses but should not be ground in a bead mill.


Physical Form
Fine white powder
Typical Properties
ValueUnitsTest Method / Conditions
Oil Absorptionapprox. 310g Palatinol N/100 g(DIN ISO 787/5)
OH Contentapprox. 0.27%-
Densityapprox. 1.47g/cm³-
Particle Size Distribution
ValueUnitsTest Method / Conditions
Particle size (dv90)approx. 17μm-
Particle size (dv50)approx. 7.3μm-

Packaging & Availability

Packaging Type
Regional Availability
  • Canada
  • Mexico
  • USA
Packaging Information

Paper bag (10 kg net)

Storage & Handling

Shelf Life
24 months
Storage and Shelf Life Conditions
  • 24 months at room temperature and dry conditions.
  • Storage temperature should not exceed 35 °C.