| Gun installation. Plasgun monolithic refractory products employ a unique cement-free binder system that combines all the superior technical properties of a plastic refractory with all the practical properties of a conventional castable. Plasgun significantly reduce installation time and costs, yet provides a high quality plastic with superior strength and greatly reduced drying shrinkage. The tighter texture and uniform consistency result in rapid strength development throughout the working temperature range. Plasgun eliminate the need for water curing, maintains intermediate strength, and allows for earlier furnace start-ups. Plasgun are more resistant to thermal shock, impact, and slag attack than comparable conventional castables. Plasgun is supplied as a dry powder for use in conventional guniting equipment. Water for placement is added at the nozzle using the same techniques used in the guniting of castables. There is no need for special equipment or extremely high air pressures for the placement of this type of guniting plastic. It possesses excellent thermal shock resistance throughout its temperature range. Plasgun can also be troweled or hand rammed by adding 7 to 9% water to the dry mix in a mechanical mixer. It is used for new linings or hot guniting repair in soaking pits, reheat furnaces, and rotary kiln firing hoods. It has excellent resistance to molten slag and thermal shock.Information provided by Morgan Advanced Materials |
