Refractory Coating is a kind of monolithic refractory materials for sale from Rongsheng Company. It can be used for the refractory lining in the high temperature furnace or kiln for resisting the corrosion. There are many different types of refractory coating materials produced by Rongsheng Factory. If you want to learn the price, welcome to contact us.
Refractory Coating Definition
Refractory Coating is a kind of mud paste materials that is mainly used for the working lining or protective lining of the refractory lining surface. Its mass ratio for solid state or volume ratio for liquid state is similar to refractory mortar’s. Refractory coating is a kind of fluid pug with smaller yield value and good spreadability. During construction, it is available for spraying with manual work or machinery.
Refractory Coating Properties
- Good spreadability and easy to operate.
- Great abrasion resistance and gas fume erosion.
- Strong acid and alkali resistance.
- Excellent performance in anti-oxidation.
- High temperature resistance and thermal insulation.
High Temperature Refractory Coatings
Refractory coasting is a king of functional high temperature refractory materials. So it also can be called high temperature refractory coating for being used in high temperature conditions of furnace or kiln. Refractory coating can be classified into liquid steel coating, thermal radiation coating, refractory thermal insulation coating, acid resistant coating and alkali-resisting coating according to its different functions.
Refractory Coating Recipe
Refractory Coating is composed of refractory aggregates, binding agent and coating additive. The refractory aggregates such as fine aggregate and powder, or powder and super fine aggregate, or powder and nanophase materials, which have specific properties. The coating additive can be dispersing agent, plasticizer, anti-sedimentation agent, shrink-resist agent, sintering agent and so on. With the different of refractory coating functions, the constituent materials will be different.
Refractory Thermal Insulation Coating
Refractory thermal insulation coating is mainly used for the refractory lining surface as the insulation layer. Its service temperature is over 1100℃.
Refractory thermal insulation coating is manufactured with the main materials of powder, bubble ball, fused alumina bubble ball, fly ash floating beads, alumino-silicate fiber blanket, mullite fiber blanket, and polycrystal fiber blanket. The powder is composed of lightweight calcined fireclay, lightweight high alumina clinker, lightweight mullite clinker and lightweight aluminium oxide clinker. The available binding agent includes ethyl silicate hydrolysate, solubility sodium silicate, silicon dioxide solution, superphosphate and aluminum sulfate aqueous solution. The available curing agent includes zinc oxide, silicofluoride, condensed phosphate and borate.
Refractory thermal insulation coating can be used in the high temperature furnace for resisting abrasion and erosion.
Alkali-resisting Refractory Coating
Alkali-resisting Refractory Coating is made of alkali resisting refractory powder, binding agent and coating additive. It has the property of resisting the erosion from alkalis vapor.
The adoptable alkali resisting refractory powder includes flint clay, bauxite chamotte, alumina-chrome slag, zirconite and chromium corundum. The adoptable binding agent includes calcium aluminate cement and sodium silicate. The adoptable coating additive includes dispersing agent, citric acid, anti-sedimentation agent and sintering agent.
Alkali-resisting refractory coating is mainly used for the flue lining and industry furnace lining with the feature of erosion and deposition from alkali vapor.
Acid Resistant Refractory Coating
Acid Resistant Refractory Coating is mixed and made of acid and semi-acid refractory powder, binding agent and coating admixture. During construction, add some refractory glass fiber or alumina-silicate refractory fiber in the coating in order to prevent cracking. The available binding agent for acid refractory coating includes sodium silicate, silica sol and aluminium acid phosphat.
Acid resistant refractory coating is mainly used for the flue lining and furnace lining surface with the erosion condition from acid gaseous medium.
Refractory Coasting Manufacturer and Supplier – Rongsheng
Rongsheng Kiln Refractory Company is a professional and leading refractory materials manufacturer and supplier in China, and has our own unshaped refractory factory for supplying all kinds of monolithic refractories including high quality refractory coating. There are professional manufacturing process and production equipment in our factory. And we also have refractory experts in our company for providing professional refractory coating guidance to our customers. If you want to buy refractory coating materials or want to learn more information, you can contact us through email now.