Polymer Nation P-21 Clear Polyurea
Product Overview
Polymer Nation P-21 is a two-component clear polyurea coating for use as a primer on concrete and as a basecoat for broadcast aggregates and flake. It is the perfect choice for priming concrete that has been exposed to oils, or when quick turn-around time is required. It comes in standard speed with the option of an accelerator to achieve faster cure or if applying in colder temperatures.
Uses and Benefits
Polymer Nation P-21 is most often used as a pigmented basecoat, with added Color Packs, for flake systems or as a concrete primer. It has excellent adhesion properties and can be used as a primer for tinted Polymer Nation finish coats.
Technical Data
The data below was gathered at temperatures of 72-75°F and 30-50% R
| Mix Ratio by Volume | 2:1 |
| Mixed Viscosity | 300-400 cP 25°C/77°F |
| Gel Time | 25 minutes |
| Dry to Touch | 2 hours |
| Through Dry | 3-4 hours |
| Dry to Walk | 4-6 hours |
| Dry to Light Use | 6-8 hours |
| Full Cure | 3 days |
| Shore D Hardness | D65 @ 24 hours |
| Shore D Hardness | D78 @ 7 days |
| Gloss @ 60 Degree Angle | 60-70 |
| VOC’s of Mixed Material | <50 g/l EPA Method 24 |
| Color Scale | 0.5-1.0 per ASTM D1500 |
| Solids by Volume Mixed | 100% |
| Application in Mils | 8-10 |
| Available Colors | Clear and Color Packs |
Additional information
| Packaging | 3 Gallon Kit. |
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