

Promat Masterboard
High performance non combustable calcium silicate building board.
Suitable for use in a number of applications including internal walls and roofs, as well as semi-exposed soffit linings and swimming pool ceilings.
Fire Reaction Class: A1 Non Combustible EN13501-1.
Up to 30 minutes fire resistance subject to system and application.
Resistant to the effects of moisture and will not physically deteriorate when used in damp or humid conditions.
Formulated without inorganic fibres; does not contain formaldehyde.
BBA Agrément Certificate No. 18/5593
Thicknesses and Availability:
Available in most popular thicknesses at some of our larger depots; short lead-times and minimum order levels may apply if we need to get stock in before delivering to site.
This masterboard Range includes the following product thicknesses: 6mm, 9mm, and 12mm.
Product Information
General information about Promat Masterboard
Product Application
General application non combustable building board
Promat's high performance non combustable building board, Masterboard, is suitable for use in internal wall and roof applications as well as semi-exposed soffits and swimming pools.
Product Make-up
Core
Promat Masterboard is a non combustable calcium silicate board reinforced with cement, cellulose fibers, quartz and mineral fillers.
Product Properties
Thickness | 6mm to 12mm | |
Board Length | 2.44m | |
Board Width | 1.22m | |
Board Edge | Square |
Product Prices
Buy Promat Masterboard
Priced on Application: Please contact us with your requirements, so we can check availability, lead times and costs.
Limited stock of the most popular boards sizes may be held at some of our larger depots.
- Generally 1 or 3 working days for delivery
- Generally 1 to 5 working days for delivery
- Generally 5 to 10 working days for delivery
- Special request or made to order item, allow extended lead times. Minimum order levels may apply.
- Please call to check availability and approximate lead times
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations
Product Performance and Guides
Product Performance, Manufacturer Downloads, and Installation Guides
Product Performance
Thermal Conductivity | 0.22 W/mK | |
Compressive Strength | 9.3 N/mm² | |
Reaction to Fire | A1, non combustable | BS EN:13501-1 |
Nominal Density | 975 kg/m³ |
Product | Thickness | Thermal Resistance | kg/m² |
---|---|---|---|
Masterboard 6mm | 6mm | 0.03 m²K/W | 5.85 kg/m² |
Masterboard 9mm | 9mm | 0.04 m²K/W | 8.77 kg/m² |
Masterboard 12mm | 12mm | 0.05 m²K/W | 11.7 kg/m² |
Product Certificates
Please visit the Promat website for product certificates.