The 140mm Masterblock Masterlite Pro Medium Dense Concrete Block 7.3N 215mm x 440mm is a low-weight concrete building block designed for thermal efficiency and manual handling considerations.

Key Features

• Available in solid format with a standard strength of 3.6N/mm2 and 7.3N/mm2, 10.5 N/mm2 blocks are available subject to order
• Masterlite Pro blocks are available in standard and paintgrade finishes for various applications and total flexibility
• For use internally and externally, both above and below dpc (7.3 and 10.4N/mm2 only)
• Suitable for use above and below dpc both internally (3.6 N/mm2) and externally (7.3 N/mm2 and 10.4 N/mm2)
• Units of 7.3 N/mm2 are suitable for use in beam & block floors
• Masterlite Pro blocks are also suitable for use in Robust Detail wall types E-WM-2,4,8,11 & 14
• Suitable for locations where the surface will not be seen i.e. plastered or rendered. Paintgrade- Suitable for locations where a consistent close textured face is required, suitable for direct decoration (note only one face & one end guaranteed)

Technical Information

• Thickness: 140 mm
• Mean Unit Strength: 7.3N/mm2
• Density (kg/m3): 1450
• Weight: 19.8 kg
• Blocks/M2: 9.88
• Sound Insulation: 44Rw dB
• Thermal Conductivity: Internal 0.60W/mK - External 0.64W/mK
• Water Vapour Diffusion Coefficient: 5/15
• Moisture Movement: Less than 0.8 mm/M
• Reaction to Fire: A1 Classification to EN 13501-1
• Bond Strength: 0.15N/mm2
• Colour: Natural
• Finish: Standard (Paint grade available)