RHT® 30, 40, 60, 80, 100, & 150 Industrial Boards
Roxul RHT® products are rigid stone wool industrial insulation boards.
Applications
Designed for use where high temperature, fire resistance, and moisture resistance are concerns:
- Storage tank insulations
- Drying/oven equipment
- Petro-chemical and power generating equipment protection
Available in different densities and dimensions to meet various application requirements. See Technical Data and individual product specification sheets for details.
Properties:
- Lightweight, but durable
- Designed for high temperature applications
- Good compressive resistance
- Excellent fire resistance properties, non-combustible
- Melting point of approximately 2150°F (1177°C)
- Service temperature of 1200°F (650°C)
- Water repellent yet vapor permeable material
- Earns LEED® points – talk to Roxul’s LEED® Accredited Professional
Technical Data
| Compliance and Performance: | ||
| ASTM C 612 | Mineral Fiber Block and Board Thermal | Type IVB, Complies |
| MEA Approval | Insulation New York City Approval | 333-97-M |
| City Of Los Angeles Approval | RR 25444 | |
| Fire Performance: | ||
| ASTM E 136 | Behavior of Materials at 750°C (1382°F) | Non-Combustible |
| CAN4 S114 | Test for Non-Combustibility | Non-Combustible |
| ASTM E 84(UL 723) | Surface Burning Characteristics | Flame Spread = 0 Smoke Developed = 0 |
| CAN/ULC S102 | Surface Burning Characteristics | Flame Spread = 0 Smoke Developed = 0 |
| Maximum Service Temperature: | ||
| ASTM C 411 | Hot Surface Performance | In Compliance with ASTM C612 @ 1200°F(650°C) |
| Dimensional Stability: | ||
| ASTM C 356 | Linear Shrinkage | <1% @ 1200°F (650°C) |
| Thermal Resistance: | ||
| ASTM C 518 (C 177) | R-value/inch @ 75°F RSI value/25.4 mm @ 24°C | 4.0 hr.ft².F/Btu*** 0.71 m²K/W |
| Density: | ||
| ASTM C 612-93 – Nominal | ASTM C 612-00 - Actual | |
| RHT®30 | 3.0 lb/ft3 48 kg/m3 | 2.5 lb/ft3 40 kg/m3 |
| RHT®40 | 4.0 lb/ft3 64 kg/m3 | 3.5 lb/ft3 56 kg/m3 |
| RHT®60 | 6.0 lb/ft3 96 kg/m3 | 4.4 lb/ft3 70 kg/m3 |
| RHT®80 | 8.0 lb/ft3 128 kg/m3 | 5.8 lb/ft3 93 kg/m3 |
| RHT®100 | 10.0 lb/ft3 160 kg/m3 | 7.6 lb/ft3 122 kg/m3 |
| RHT®150 | 15.0 lb/ft3 240 kg/m3 | 11.0 lb/ft3 176 kg/m3 |
| Compressive Strength: | ||
| ASTM C 165 | at 10%: | at 25%: |
| RHT®40 | 63 psf (3 kPa) | 146 psf (7kPa) |
| RHT®60 | 104 psf (5 kPa) | 230 psf (11 kPa) |
| RHT®80 | 167 psf (8 kPa) | 334 psf (16 kPa ) |
| RHT®100 | 313 psf (15 kPa) | 626 psf (30 kPa) |
| RHT®150 | 1220 psf (58.5 kPa) | 1880 psf (90 kPa) |
| Corrosive Resistance: | ||
| ASTM C 665 | Corrosiveness to Steel | Pass |
| ASTM C 795 **** | Stainless Steel Stress Corrosion Specification as per Test Methods C871 and C692: U.S. Nuclear Regulatory Commission, Reg. Guide #1.36: U.S. Military Specifications MIL-I-24244 (all versions including B and C) | Conforms |
| Dimensions & Thicknesses: | ||
| Consult individual Tech Pages in the Technical Library | ||


