Deuteron MK-F
Organic PMU matting agent with a 4.6 micron median particle size. The middle of the three MK grades, for films too thin to carry the coarse grade cleanly.
Organic PMU matting agent with a 4.6 micron median particle size. The middle of the three MK grades, for films too thin to carry the coarse grade cleanly.
Deuteron MK-F is a micronized duromeric plastic powder based on polymethylurea. The synthesis produces highly amorphous particles with a comparatively high BET surface area, which is what makes the chemistry work as a matting agent.
As an organic polymer it holds a balance between matting performance, viscosity and mechanical stability that inorganic matting agents do not. It has a low influence on viscosity at the loadings needed to hit a gloss target.
MK-F sits between the other two grades, with a median particle size of 4.6 microns and a dv90 of 10.6 microns. Oil absorption is 278 g per 100 g. It is the grade to reach for when MK reads as texture in the film but MK-F6 costs more matting efficiency than the job needs.
It is insoluble in the solvents commonly used in coatings, temperature resistant beyond 200 °C and briefly beyond 300 °C, and biodegradable.
| Property | Typical value |
|---|---|
| Appearance | Fine white powder |
| Density | approx. 1.47 g/cm³ |
| Particle size dv50 | approx. 4.6 µm |
| Particle size dv90 | approx. 10.6 µm |
| Oil absorption (DIN ISO 787/5) | approx. 278 g Palatinol N per 100 g |
| OH content | approx. 0.27 percent |
| Temperature resistance | Over 200 °C, short-term over 300 °C |
Dosage: A typical addition range of 1 to 15 percent. The level depends heavily on the binder type, other additives, solvent content and the application parameters, so determine it with a ladder study.
Typical values from the manufacturer's technical data sheet. They describe the product, they are not a specification. We will send the current TDS and the batch documentation your qualification needs.
Tell us the binder system, the property you are targeting, and the volume you expect. We will confirm the grade, send the documentation, and ship a sample from North American stock.
Compatible without specific wetting agents or dispersing aids.
Insoluble in the solvents commonly used in coatings.
Usable across the full range of coating systems.
A 10.6 micron dv90 that stays smooth in mid-build films.
Supports surface feel from a paper touch through to a soft feel.
It is specified where the formulation needs a strong matting effect at low viscosity impact, high mechanical and chemical resistance, scratch resistance and resistance to polishing, improved blocking resistance, and a pleasant surface touch.
PMU chemistry is highly compatible across a wide range of systems, so Deuteron MK-F can be incorporated with a high-speed stirrer without specific wetting agents or dispersing aids.
It is shear stable in high shear processes. Do not grind it in a bead mill: the particle size distribution is the product, and milling destroys it.
Package sizes: Paper bag, 10 kg net.
Storage: 24 months at room temperature in dry conditions. Storage temperature should not exceed 35 °C.
Under Regulation (EC) No. 1272/2008 Deuteron MK-F is not classified as a dangerous product and does not require hazard labelling. The safety data sheet and the regulatory information sheet carry the detail your review will want.
By film thickness and how fine a surface you need. MK is the coarsest at 6.3 microns dv50 and 13.8 dv90, with the highest oil absorption at 325, so it mattes hardest per unit added. MK-F sits at 4.6 and 10.6 microns, MK-F6 at 3.5 and 6.5. Thin films need the finer grades or the coarse particles read as texture.
Somewhere between 1 and 15 percent, and the honest answer is that the number depends on your binder, your solvent content and your application method. Run a ladder study. Tell us the system and the gloss you are targeting and we will suggest where to start it.
No. It is shear stable in high shear mixing, but a bead mill will grind the particle size distribution away, and that distribution is what produces the matting. A high-speed stirrer is all it needs.
No. Polymethylurea is an organic urea-based thermoset with no fluorine in it, which is why the chemistry is used as a route away from PTFE micronized waxes in coatings.
It is temperature resistant to over 200 °C, and briefly to over 300 °C, so it holds through normal oven-cured and coil schedules.
Yes. We send the Technical Data Sheet (TDS), Safety Data Sheet (SDS), and Regulatory Information Sheet on request, in the manufacturer's current revision. Use Request TDS or SDS above and tell us what your qualification review needs.
Coarser at 6.3 microns dv50, mattes harder per unit.
Finer at 3.5 microns dv50, for the thinnest films.
PTFE-modified matting agent where slip is wanted too.