Silicate-based sealant, black for use at high temperatures. Used to insulate and fill cracks in places exposed to extremely high temperatures. Applies comfortably and evenly. When heated, the mass will become dark gray, extremely hard and will withstand extreme temperatures (up to +1500 ° C for a short time). Suitable for working with natural stones. Application temperature from +5 ° С to +40 ° С. The film forms in 5 minutes.