GOODPOLY GR20 is produce by natural protein. Its a kind of retarder special designed for various gypsum applications.
Physical Specification
Item Specification
Appearance (%) Light grey powder
Bulk Density 600~900g/L
pH value (20%)
Gypsum Plaster Retarders extend the set time of conventional plasters, veneer plasters, lime finish plasters and setting-type joint compounds. By slowing the chemical crystal formation that causes gypsum plaster to set or harden, Gypsum Plaster Retarders allow more time to complete each job. For price, specifications and more details please contact us
GOODPOLY GR20 is produce by natural protein. Its a kind of retarder special designed for various gypsum applications. Physical Specification Item Specification Appearance (%) Light grey powder Bulk Density 600~900g/L pH value (20%)
GOODPOLY GR20 is produce by natural protein. Its a kind of retarder special designed for various gypsum applications. Physical Specification Item Specification Appearance (%) Light grey powder Bulk Density 600~900g/L pH value (20%)
Natural Gypsum: Gypsum (CaSO4.2H2O) is a naturally occurring mineral mined from deposits formed by ancient sea beds as a raw material, white when pure, but commonly grey, yellow, red or brown, owing to impurities. The anhydrous form (CaSO4), anhydrite, is common. We are enlisted amongst the topmost INatural Gypsum Importers and Exporters from India. Applications: Gypsum has many industrial applications in its raw or Calcined forms, especially in the building and construction industries. Uses of Raw Gypsum are principally as: - a retarder for Portland cement - a fertilizer or soil conditioner - mineral filler - oxidizing agent in glass manufacture or other industrial applications. Most gypsum is calcined and used in the manufacturing of plaster products. Wallboard and plaster requires gypsum contents greater than 85%, although producers prefer a minimum of 94–95% along with whiteness in color. The major consumers of the Gypsum at present are Cement Industry. By weight about 4% to 6% Gypsum in crushed condition is utilized in Portland Cement Manufacture after mixing with cement/clinker. Gypsum acts as a retarder and controls the setting time of cement. Imported Gypsum from Iran: Natural Gypsum is one of the most superior qualities and consistent material available for Import and Export. Natural Gypsum has adequate whiteness, high purity as well as it is low in cost which makes it absolutely feasible for white cements as well as Plaster Of Paris manufacturing and for the Cement Industry all together. One more important quality that distinguishes Natural Gypsum from others is its hardness which is less as compared to other sources and allows different industries to easily grind the same for processing into final product which in turn results in to reduced power consumption for manufacturing industries.
Supplier: Construction chemicals, fly ash ,gypsum, concrete accelerator , concrete retarders
Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite. Gypsum (CaSO4.2H2O) is very similar to Anhydrite (CaSO4). The chemical difference is that gypsum contains two waters and anhydrite is without water. Gypsum is the most common sulfate mineral Uses of Gypsum Gypsum uses include: manufacture of wallboard, cement, plaster of Paris, soil conditioning, a hardening retarder in Portland cement. Varieties of gypsum known as satin spar and alabaster are used for a variety of ornamental purposes; however, their low hardness limits their durability.
The development of all gypsum boards begins with a mineral rock, which is gray to white in color and is called gypsum. The basic mineral is composed of calcium sulfate chemically combined with water of crystallization. The combined water makes up approximately 20% of weight of gypsum rock. This is the feature that gives gypsum its fire resistant quality and makes it so adaptable for construction purposes. After gypsum rock is mined or quarried, it is crushed, dried, and ground to flour fineness, then calcined to drive off the greater part of the chemically combined water as steam. This calcined gypsum, commonly called plaster of paris, is then mixed with water and other ingredients and sandwiched between two sheets of specially manufactured paper to form various types of gypsum board or specially formulated and bagged for shipment as gypsum plaster or cement. Gypsum boards are formed in a highly automated continuous process. After the gypsum board has set, the boards are cut to length, dried, prefinished if required, and packed for shipment. All processing is in strict accordance with specifications and complies with more than 256 procedures and work instructions to meet quality standards and customer's satisfaction. ADVANTAGE: Life Safety Protection Fire resistance is inherent in the gypsum construction selected. The systems provide permanent fire resistance not subject to loss of water pressure or other malfunctions and problems which may occur in sprinkler systems. Fire Resistance: Gypsum will not support combustion. When attacked by fire, crystallized water in gypsum is released and turns to steam to help retard the spread of flame and heat and protect adjacent constructions. Light Weight: Gypsum board constructions weigh appreciably less than masonry assemblies of the same thickness. They reduce material - handling expense and may permit the use of lighter structural members, floors, and footings. Sound Control: Gypsum board construction offers excellent resistance to airborne and impact sound transmission without excessive bulk or weight. Resilient attachment of gypsum panels or bases further improves sound ratings, makes partitions ideally suited for party walls. Versatility: Gypsum board construction is suitable as divider, corridor and party walls; pipe chase and shaft enclosures; radiant-heat ceilings; exterior walls and wall furring; membrane fire resistant constructions. Adaptable for use in every type of new construction - commercial, institutional, industrial and residential - and in remodeling. It produces attractive joint - free walls and ceilings; easily adapt to most contours, modules and dimensions. SPECIFICATIONS It is ivory colour that is nice whether being painted or used as the end colour. THICKNESS WIDTH LENGTH KG/M2 9.0 1220 2440 8.3KG 12.0 1220 2440 12KG
Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite. Gypsum (CaSO4.2H2O) is very similar to Anhydrite (CaSO4). The chemical difference is that gypsum contains two waters and anhydrite is without water. Gypsum is the most common sulfate mineral Gypsum uses include: manufacture of wallboard, cement, plaster of Paris, soil conditioning, a hardening retarder in portland cement. Varieties of gypsum known as "satin spar" and "alabaster" are used for a variety of ornamental purposes; however, their low hardness limits their durability.
Crude gypsum is used as a fluxing agent fertilizer filler in paper and textiles and retarder in Portland cement About threefourths of the total production is calcined for use as plaster of Paris and as building materials in plaster Keenes cement board products and tiles and blocks Parameters Gypsum 1 Gypsum Moisture Content : Max 30 Sieve : Tests 50 mm : NIL 400 mm : MAX 100 5mm : Max 300 SiO : Max 50 MgO : Max 20 SO : Min 380 Total Alkalies as Na O : Max 010 Chloride content : Max 05 Combined Water : Min 163 Purity : Min 780 Parameters Composition Percentage Calcium Oxide CaO 30 Min Sulphuric Anhydrids SO3 42 Min Silicon of Oxide SiO insoluble Matter 2 Max Magnesium Oxide MgO 04 Max Ferric Oxide Fe2O3 04 Max Aluminium Oxide AI2O3 03 Max Moisture 1 Max Gypsum asCaso42H2O 90 Min
