Deuteron® MM 659

• Deuteron® MM 659 is synergistic com- pounds of organic duromeric PMU powders (Polymethyl urea) with inorganic matting agents. They are particu- larly suitable as matting agents for radiation-curable systems.
• Deuteron® MM 659 is especially designed to show a high matting performance with low influence on the final coating viscosity – a key property in many 100 % UV curable systems.

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 659 an MM 669 especially improves 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 feeling
• Improved blocking resistance
• Insoluble in solvents commonly used in coatings
• Polymer content biodegradable
   

Dosage

• Typical addition range: 100 % UV curable: 1 %–12 % w/b or s/b UV: 1 %–10 %
• 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

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.

• Paper bag (10 kg net)

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