Deuteron® MM 680 is a synergistic compound comprising organic Deuteron® PMU powder (polymethyl urea) combined with inorganic materials. Tailored as a matting agent specifically for solvent-borne 2-pack PU topcoats, Deuteron® MM 680 stands out for its wax-free formulation. Its appearance is characterized by a fine white powder, offering a specialized solution for achieving desired surface finishes in solvent-borne polyurethane top coats.

Chemical Family: Polymethyl Urea

Functions: Flattener

End Uses: Solventborne Coating, Top Coat, Waterborne Coating

Labeling Claims: Biodegradable, Wax-free

Features: Blocking Resistance, Chemical Resistance, Excellent Scratch Resistance, Improved Mechanical Resistance, Matting, Polishing Resistance

Technical Data Sheet

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Identification & Functionality

Chemical Family
CASE Ingredients Functions

Features & Benefits

Labeling Claims

Applications & Uses

Use Level
1 - 10 %
Application and Dosage Information

Deuteron® MM matting agents 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.

The use of Deuteron® MM 680 especially improves the following properties:

  • Good matting effect
  • Very low influence on viscosity even at high application rates
  • High mechanical and chemical resistance
  • High scratch resistance and resistance to polishing
  • Temperature resistant up to over 200°C, short- time up to over 300°C
  • Pleasant touch felling
  • Improved blocking resistance
  • Insoluble in solvents commonly used in paints
  • Polymer content biodegradable


  • Typical addition range: 1%–10%
  • The required dosage level highly depends on the system (e.g. binder type, additives, solvent content) and ap- plication parameters such as layer thickness and film shrinkage. Thus, it is highly recommended to determine the needed addition level by a practical ladder study.


The PMU chemistry in general is highly compatible in a wide range of systems. Due to that Deuteron® MM 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
Densityapprox. 1.9g/cm³-
Particle Size (dv 50)approx. 6.7μm-
Particle Size (dv 90)approx. 13.9μm-
ValueUnitsTest Method / Conditions
Oil Absorption (Palatinol N)approx. 230g/100gDIN ISO 787/5

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.