Rockal Calcium Silicate Pipe Support Insulation made from tobermolite (5CaO.6SiO2 .5H2 0) crystal reinforced with non-asbestos fibers. It is a rigid material exhibiting high compressive strength.
| conductivity | Compressive | Density |
| 25 | 0.052 | 0.058 |
| 50 | 0.060 | 0.065 |
| 93 | 0.065 | 0.070 |
| 149 | 0.070 | 0.075 |
| 200 | 0.078 | 0.085 |
| 260 | 0.087 | 0.092 |
| 300 | 0.095 | 0.098 |