Hi-Strength Paint Grade Smooth combines the high quality appearance of Paint Grade Smooth with the compressive strength of Thermalite® Hi-Strength blocks. It is recommended that a Paint Grade Smooth sample panel is erected for comparison purposes prior to construction, and that selection is undertaken during construction. It may also be necessary to fill small blow holes before decoration.
Due to thickness variations within manufacturing tolerances, it may be difficult to build solid partition walls which have a smooth and even surface on both sides.
Working dimensions Face dimensions (mm) 440 x 215
Thicknesses and weights Block thicknesses and weights at equilibrium density (for 440 x 215mm)
| Thickness (mm) |
100 |
140 |
150 |
190 |
200 |
215 |
| Weight* (kg) |
7.1 |
10.0 |
10.7 |
13.5 |
14.2 |
15.3 |
Properties Mean compressive strength not less than 7.3N/mm²
Designed thermal conductivity (λ) 0.19W/mK
Specified gross dry density 730kg/m³
*Block weights are calculated using specified gross dry density, with a moisture content of 3% by weight added to provide the equilibrium value. Hi-Strength Paint Grade Smooth blocks are not suitable for external leaf work.