Deuteron PMH C
PMU matting agent built for low viscosity impact. Less matting efficiency than the MK family, and significantly less effect on viscosity and film flexibility.
PMU matting agent built for low viscosity impact. Less matting efficiency than the MK family, and significantly less effect on viscosity and film flexibility.
Deuteron PMH C is a micronized duromeric plastic powder based on polymethylurea. Its synthesis gives a balanced mix of compact and amorphous particle structures rather than the highly amorphous structure of the MK grades.
That difference is the whole point of the grade. Compared with the Deuteron MK family, PMH C mattes less efficiently but has significantly less influence on viscosity and porosity, and it improves film flexibility.
Its oil absorption is 167 g per 100 g, roughly half that of Deuteron MK at 325. Low oil absorption is what keeps viscosity down at high loadings, which is why this grade suits high solids formulations and films that have to stay flexible.
| Property | Typical value |
|---|---|
| Appearance | Fine white powder |
| Density | approx. 1.47 g/cm³ |
| Particle size dv50 | approx. 5.5 µm |
| Particle size dv90 | approx. 12.1 µm |
| Oil absorption (DIN ISO 787/5) | approx. 167 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.
Low oil absorption keeps viscosity workable at high loadings.
Improved flexibility compared with the MK matting grades.
Compatible without specific wetting agents or dispersing aids.
Usable across the full range of coating systems.
Less influence on porosity than the highly amorphous MK structures.
It is specified where the formulation needs gloss reduction with very low viscosity impact, improved film flexibility, high mechanical and chemical resistance, scratch resistance and resistance to polishing, and improved blocking resistance.
PMU chemistry is highly compatible across a wide range of systems, so PMH C 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 what produces the matting.
Package sizes: Paper bag, 15 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 PMH C 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.
When viscosity is the constraint rather than matting efficiency. PMH C absorbs 167 g of oil per 100 g against MK's 325, so it loads into a high solids formulation without driving viscosity up the way a highly absorbent matting agent does. It also leaves the film more flexible. The trade is that it mattes less per unit added.
Deuteron does not publish a ratio, and it would depend on your system anyway. Plan to run a ladder study across the 1 to 15 percent range. Tell us the gloss target and the binder and we will suggest where to start.
Less than the MK grades. The compact and amorphous particle mix gives lower porosity than the highly amorphous MK structures, which matters where the film has to resist staining or moisture pickup.
No. It is shear stable in high shear mixing, but bead milling destroys the particle size distribution that produces the matting effect. A high-speed stirrer is sufficient.
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.
Higher matting efficiency where viscosity headroom allows.
Finer PMU grade at 4.6 microns dv50.
PTFE-modified, for low gloss surfaces that also need slip.