Deuteron® PMH C is a micronized deuteron plastic powder composed of PMU (polymethyl urea). It exhibits a minimal impact on viscosity and is specifically designed as a complementary agent to enhance the polishing and burnishing resistance of SiO₂. This product is supplied in powder form, facilitating its application in various processes.

Chemical Family: Polymethyl Urea

Functions: Flattener

End Uses: Solventborne Coating, Waterborne Coating

Labeling Claims: Biodegradable

Features: Blocking Resistance, Burnish Resistance, Excellent Scratch Resistance, Improved Chemical 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
Product Highlights
  • Deuteron® PMH C is a micronized duromeric plastic powder based on PMU (Polymethyl urea). The unique synthesis of Deuteron® PMH C leads to a well-balanced mix between compact and amorphous particle structures – this property makes it a good matting agent with very low influence on viscosity and porosity. Because of their highly compatible chemistry Deuteron® PMH C can be used as matting agent in a wide variety of different applications and systems.
  • Compared to the Deuteron® MK family our Deuteron® PMH C shows less matting efficiency but significantly less influence on viscosity and improved flexibility.

Applications & Uses

Application and Dosage Information

Deuteron® PMH C can be used in almost all coating appli- cations ranging from water borne and solvent borne to 100 % systems. It can be used as stand-alone additive or in combination with other materials to further improve their properties.

The use of Deuteron® PMH C especially improves the following properties:

  • Good matting effect
  • Low influence on viscosity
  • 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
  • Improved blocking resistance
  • Insoluble in solvents commonly used in paints
  • Biodegradable


  • 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.


  • The PMU chemistry in general is highly compatible in a wide range of systems. Due to that Deuteron® PMH C 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 processes but should not be ground in a bead mill.


Physical Form
Fine white powder
Typical Properties
ValueUnitsTest Method / Conditions
Densityapprox. 1.47g/cm³-
Oil Absorption (Palatinol N)approx. 167g/100gPalatinol N/100 g (DIN ISO 787/5)
Particle Size (dv 50)approx. 5.5μm-
Particle Size (dv 90)approx. 12.1μm-
Hydroxide Contentapprox. 0.27%-

Packaging & Availability

Packaging Type
Regional Availability
  • Canada
  • Mexico
  • USA
Packaging Information
  • Paper bag (15 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.