Everbuild's Heat Resistant Plaster is a fully blended fine powder material which has been design for use in interior applications where temperatures exceed 50°C such as fires, stoves, walls and chimney breasts. Once mixed with water application is easy with either a trowel or float and once dry the product will protect against heat up to 500°C. It is recommended that this product is used in conjunction with Everbuild's Heatproof Screed for the best results.