Topcrete Paint Quality
These blocks are ideal for commercial, industrial and leisure buildings (external and internal walls) because you can paint directly into them. They're robust and durable, while offering excellent fire and sound insulation, and good standards of airtightness. Colour and texture vary according to which factory produces them, so please ask for samples.
Technical properties
- Manufactured to BS EN 771-3, Tolerance Category D1
- Mean compressive strength:
- Solid 7.3 and 10.4N/mm²
- Cellular or hollow 3.6 and 7.3N/mm²
- Dry density: 1800-1900kg/m³
- Thermal conductivity (at 3% moisture content): 1.18W/mK
- Moisture movement: < 0.5mm/m
- Typical airtightness:
- 100mm solid blocks - emulsion paint finish 0.13 - 1.16 m³ / (h.m²) @ 50 pa
- 140mm solid blocks - emulsion paint finish 0.36 m³ / (h.m²) @ 50 pa
- Block size: 440mm long x 90-215mm (various widths) x 215mm high
Sizes & weights
Unit weight (kg) |
|||||||
| Block width (mm) | 90 | 100 | 140 | 150 | 190 | 215 | |
| Solid: 7.3 and 10.4N/mm² | 16.0* | 17.8 | 24.9 | 26.7* | 33.8* | 38.2* | |
| Solid Midi 7.3 and 10.4N/mm² | - | - | 16.4 | - | - | - | - |
| Cellular:7.3N/mm² | - | - | 18.0 | - | - | - | - |
| Cellular Multicore: 7.3N/mm² | - | - | 18.5 | - | - | - | - |
| Hollow: 3.6 and 7.3N/mm² | - | - | - | - | - | 25.6 | |
Unit weights are approximate and based on 3% moisture content
* Manufactured to order. An alternative way to construct 190-215mm walls is to use two leaves of 90 / 100mm Topcrete blocks laid back to back and suitably tied. Design guidance is given in BS 5628-1 or contact Topblock Technical Services for advice.
Other sizes may be available subject to minimum order quantites
Find out more
Download Topblock Hemelite and Topcrete Aggregate Blocks Brochure (pdf, 1596kb)


