25mm Promat PROMATECT 250 Calcium Silicate Board - Excellent Fire Resistance - 2500mm x 1200mm

25mm PROMATECT 250 is a rigid, autoclaved calcium silicate board reinforced with selected fibres and fillers, engineered to deliver exceptional fire resistance while remaining lightweight, strong and easy to work with. The board is non‑combustible (Euroclass A1) and retains its structural integrity even under direct fire exposure, making it suitable for fire‑rated walls, ceilings, ductwork protection, structural steel encasement and service enclosures.

It offers excellent moisture resistance, allowing installation in humid or semi‑exposed environments without deterioration, warping or loss of performance. PROMATECT 250 is dimensionally stable, resistant to mould and rot, and can be cut, drilled and fixed using standard tools. The board has a smooth, off‑white surface suitable for direct decoration, including paint, plaster or tiling, depending on the application.

CHARACTERISTICS

• Non‑combustible A1 fire rating - ideal for high‑risk fire protection applications.
• High structural stability under fire - maintains integrity and insulation performance.
• Moisture‑resistant - suitable for humid or semi‑exposed areas.
• Durable and impact‑resistant - long service life with minimal maintenance.
• Easy to cut and fix - workable with standard site tools.
• Smooth surface finish - ready for painting or further finishing.
• Resistant to mould, rot and pests - ideal for demanding environments.

• Fire‑rated partitions and ceilings
• Structural steel encasement
• Fire protection to mechanical and electrical services
• Ventilation and smoke extract ductwork
• Industrial enclosures and plant rooms
• Shaft walls and risers                          

CERTIFICATION

• Certfire Approval,
• CE marked
• Fire Reaction Class: A1 Non Combustible EN13501-1