Polyurethane Dispersion for Coatings on Metal & Steel
| P-302-5A | PX-105D | P-120 | |
|---|---|---|---|
| Main properties | Low film formation temp High toughness, Deep drawing resistant, Salt spray resistant, Acid/alkali resistant, |
Middle film formation temp High hardness, Good solvent resistance, Good salt spray resistance, Good acid/alkali resistance, Good weather resistance |
High film formation temp Very High hardness, Excellent adhesion to mirror stainless steel, Excellent solvent resistance, Excellent salt spray resistance, Excellent acid/alkali resistance, Excellent weather resistance |
| Solid content (%) | 35 | 30 | 30 |
| Viscosity (cps) | < 200 | < 200 | < 200 |
| PH Value | 7.0-9.0 | 7.0-9.0 | 7.0-9.0 |
| Appearance of dispersion | Semi-transparent | Semi-transparent | Semi-transparent |
| Appearance of dried film | Transparent with high gloss | Transparent with high gloss | Transparent with high gloss |
| Content of organic solvent | 0% | DEF=12% | 0% |
| Salt spray resistance (hr) | >100 | >400 | >1000 |
| Required film forming agents | t-PNB=1% | 0% | DMAc=6%, t-PNB=4% |
| Drying condition after adding required film forming agents | 100-130℃/ 3 min | 130-150℃/ 3 min | 185℃/ 3 min |
| Pencil hardness | H | 2-3 H | 3-4 H |
| Rub resistance to Toluene (cycle) | >100 | >200 | >200 |
| Rub resistance to IPA (cycle) | >50 | >100 | >200 |
| Rub resistance to Ethanol (cycle) | >50 | >100 | >200 |
| Rub resistance to MEK (cycle) | >30 | >60 | >200 |
| Gloss (60°) | >120 | >120 | >120 |
| Adhesion to mirror stainless steel (Cross-Cut Test) | 5B | 4B | 5B |