Furnace Cement High Temperature 1/2 pt. Tan Application Time Immediately Temp Range (F) 10 Degrees F Ready to Use Premixed Air Setting 10 Freeze Point For Use On Fireboxes Boilers Stoves Ovens Flue Pipes Kilns Chimneys Ducts Combustion Chambers Masonry Surfaces Many Other Furnace and Refractory Applications Substrates Repairing Gas Oil Coal and Wood Burning Heating Systems OSHA Minimal Silica Content