Styrothane 5321FR
A fast curing, 100% solids, aromatic urethane coating. Specifically designed as a hard coat to proved high impact damage resistance for expanded polystyrene (EPS), Styrofoam and PUF. Click here to download specification sheet (.pdf)
| Property | Units | ASTM Test |
| Density | ASTM D1353 | 100% |
| Thermal Conductivity @ 40° F | ASTM D497 | 30° F to 180°F |
| (k Factor) @ 75° F | ASTM D638 | 3350 PSI |
| Thermal Resistance @ 40° F | ASTM D638 | 8.00% |
| (R Value) @ 75° F | ASTM 790 | 6600 |
| Strength Properties | ||
| Gardner Impact | ASTM D3029 – 77F | 120 in/lb |
| Heat Deflection @ 66psi | ASTM D648 | 85° F |
| Comprehensive Strength @10% DEFL | ASTM D695 | 4500psi |
| UV Resistance | Protect with an approved coating | |
| Surface Burning Characteristic | ASTM E84-9a | |
| Smoke Index | 450 |