Niles Steel Tanks sprayed-on rigid insulation with acrylic topcoat exceeds ASHRAE 90.1b requirements with 2.5” of high density polyurethane foam with an R value of R-16. The 100% acrylic topcoat is formulated for outdoor applications and is designed to withstand a full range of environmental conditions. The 2 component polyurethane foam is applied at directly to the vessel and rises to the desired thickness. The acrylic topcoat protects the spray-on foam from deterioration from the sun.
Insulation and Topcoat
Spray Polyurethan Foam
- Specific Gravity: 1.22
- Density: 2.5
- Closed Cell Content: >90%
- K-Factor, initial: 0.152 2″ SPF
- Permeance: .55
- Dimensional Stability: +1% – Dry Age 28 days (158°F, Dry)
- Flame Spread: 25 – ASTM E-84
- Smoke Development: 450
- R Value: 6.6 inch
- Max. Thickness: 4″
Acrylic Coating
| Spray Polyurethan Foam | |
| Specific Gravity | 1.22 |
| Density | 2.5 |
| Closed Cell Content | >90% |
| K-Factor, initial | 0.152 2’ SPF |
| Permeance | .55 |
| Dimensional Stability | +1% Dry Age 28 days (158ºF, Dry) |
| Flame Spread | 25 – ASTM E-84 |
| Smoke Development | 450 |
| R Value | 6.6 inch |
| Acrylic Coating | |
| Topcoat | White, 25 mils |
| Texture | Smooth |
| Grade | Spray or Roll |
| Base | 100% Acrylic |
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