Ground Gypsum Superfine White

Ground Gypsum Superfine White is an extremely high purity, micronised gypsum grade, obtained from naturally occurring mineral. It is used as a food additive (E516), food processing aid, as well as an additive in a variety of construction material formulations.

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Chamotte
Al₂O₃ content (%)		Open porosity (%)
Vitreous phase (%)		Pyroscopic resistance (°C)
Apparent density

Plaster
Chemical composition		Linear expansion (%)
Chemical name		Colorimeter L (L* value)
Plaster to water mix ratio (by weight)		Colorimeter a (a* value)
Plaster to water ratio (by weight)		Colorimeter b (b* value)
Water to plaster ratio (by weight)		Colour
Fluidity / spread (cm)		Sieve analysis (Mesh size & % weight retained)
Initial setting time (minutes)		Bulk density loose (kg / m³)
Final setting time (minutes)		Bulk density compacted (kg / m³)
Wet compressive strength MPa		Apparent bulk density (g/cm³)
Dry compressive strength MPa		Pore volume (%)
Flexural strength MPa		Start of warming phase (minutes)
Brinell hardness MPa		End of warming phase (minutes)
Hardness shore D		Shelf life (Months)

Refractory Investments
Water used (%)		Liquid Density
Mixing Time (minutes)		Linear Expansion 1 hour after setting (%)
Working / Casting Time (minutes)		Linear Expansion 2 hours after setting (%)
Initial Setting Time (minutes)		Shelf Life (months)

Gypsum
Chemical composition	CaSO₄2H₂O	pH	7
Chemical name	Calcium sulphate dihydrate	Solubility of Gypsum (g/ litre)	2.1
Minimum Gypsum purity (%)	99	Bulk density loose(kg/cm³)	900
Sieve analysis (mesh size & % weight retained)	75microns 10%; 150microns 2.5%	Bulk density compacted (kg/cm³)	1200
Colorimeter L (L* value)	92.5	Apparent bulk density	[0.9]
Colorimeter a (a* value)	0.25	Gypsum hardness (MOH scale)	2
Colorimeter b (b* value)	3	Shelf life	24
Colour	white

Please refer to product data sheets for futher information

Technical data
Applications
Process
Tutorials
Logistics

Plaster based construction elements	Plaster is commonly used as the base material (binder) for the manufacturing of prefabricated construction elements for interior walls, ceilings and plaster blocks.
Construction Chemicals	Formula offers high quality plaster and uncalcined gypsum products for use in various construction products and chemicals.
Oil & Coal Mining	Plaster based products are used in mining applications due to their non-combustibility and non-toxicity, for fire or explosion stoppings, cavity filling and sealing, and in the fomulation of oil well drilling muds are used to lubricate the drilling head and carry away debris.
Flooring Products	Plaster and gypsum are used in flooring applications, including floor screeds and levelling compounds.
Interior Wall Products	Plaster is a popular material for interior wall finishing.
Food	Formula proposes natural, high purity gypsum (Calcium Sulphate Dihydrate) products for use in the food industry, either as a food additive or as a food processing aid, in accordance with EU regulations.

Additive / Binder / Product Base

Plaster and gypsum products are used in a variety of formulations where they are added in small amounts to improve, strengthen, or in some way alter the finished formulation.

Customer Service Office Hours
Monday - Friday: 8.00am - 5.00pm

Plant Loading Times
Monday - Thursday : 9.30am - 3.45pm
Friday : 9.30am - 3.00pm

Packaging
Products are supplied in nomina 25kg paper sacks on 1400kg or 1050kg, 2-way wooden pallets.
Certain specialist engineering and dental plasters are packed in 25kg tubs on 500kg pallets.
1 tonne Bulk Bag and Bulk Tanker options are also available on request for certain products.

Please consult our Customer Service Team for any further information

Dianne Sweeney: +44 (0) 1636 670 235
Kevin Reynolds: +44 (0) 1636 670 213

Fax : +44 (0) 1636 670 229

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Ground Gypsum Superfine White

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