Get your fireplace back in working order with Hotspot Ready To Use Mortar. Specifically designed for replacing and repairing fireplace bricks, this mortar ensures smoke and gas-tight joints for safe and efficient use. With an easy ready-to-use formula, it air-dries in just 24 hours and can withstand heat up to 1400°C. Plus, its sandstone color blends seamlessly for a polished finish. Get 500g of coverage in just one tub.