Source: Elkem
BLUESIL™ TCS 7544 is a new silicone solution for coated textiles requiring compliance with EN 13501‑1 Euroclass A1/A2. The new material delivers high performance for advanced architectural textiles requiring enhanced fire safety, supported by long term durability, resistance to UV and weather exposure, mechanical stability at high temperatures, and reduced smoke emission. Silicone‑coated textiles are increasingly required in construction and public‑infrastructure projects to meet EN 13501‑1 Euroclass A1/A2, the highest fire‑performance classifications for non‑combustible or very low‑combustible products. The new material is formulated to deliver low combustibility and minimize heat release, with performance verified through EN 1716 PCS calorimetric analysis. Testing shows that the material reduces heat release by approximately 20 percent compared with standard fire‑resistant silicone coatings, demonstrating its ability to lower the calorific contribution of the coating layer—often the primary source of combustibility within textile composite systems. BLUESIL™ TCS 7544 is an off-white, pigment-addable coating based on a two-component polyaddition system. It features a 10:1 mixing ratio, ensuring easy mixing, straightforward handling, and adjustable curing speed. Its long pot life (>24 hours at 23°C) offers strong process flexibility, while an optimized 45,000 mPa·s viscosity enables easy pumping and low coat weights. Fast cure in around 3 minutes at 150°C supports fast and efficient crosslinking for high‑throughput, consistent manufacturing. — Elkem ASA, Oslo, Norway