Fine Casting

Fine casting plaster is used in the manufacture of fibrous plasterwork and GRG elements, and in general decorative casting and modelling applications.

12;

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

Plaster
Chemical composition	CaSO₄½H₂O	Linear expansion (%)	0.2
Chemical name	Calcium sulphate hemihydrate	Colorimeter L (L* value)	92
Plaster to water mix ratio (by weight)	100/70	Colorimeter a (a* value)	0.5
Plaster to water ratio (by weight)	1.43:1	Colorimeter b (b* value)	3
Water to plaster ratio (by weight)	70%	Colour	white
Fluidity / spread (cm)		Sieve analysis (Mesh size & % weight retained)	32microns 30%; 63microns; 15%: 90microns 8%; 150microns 1%
Initial setting time (minutes)	21	Bulk density loose (kg / m³)	800
Final setting time (minutes)	28	Bulk density compacted (kg / m³)	1200
Wet compressive strength MPa	5	Apparent bulk density (g/cm³)	0.80
Dry compressive strength MPa	13	Pore volume (%)
Flexural strength MPa		Start of warming phase (minutes)
Brinell hardness MPa	20	End of warming phase (minutes)
Hardness shore D		Shelf life (Months)	3

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	pH
Chemical name	Solubility of Gypsum (g/ litre)
Minimum Gypsum purity (%)	Bulk density loose(kg/cm³)
Sieve analysis (mesh size & % weight retained)	Bulk density compacted (kg/cm³)
Colorimeter L (L* value)	Apparent bulk density	[]
Colorimeter a (a* value)	Gypsum hardness (MOH scale)
Colorimeter b (b* value)	Shelf life
Colour

Please refer to product data sheets for futher information

Technical data
Applications
Process
Tutorials
Logistics

Fine casting plaster is used in the manufacture of fibrous plasterwork and GRG elements, and in general decorative casting and modelling applications.

Interior Wall Products	Plaster is a popular material for interior wall finishing.
Interior Design	Formula plasters are used to achieve unique architectural renovation and interior design features, for building interiors in renovation and commercial interior design projects, with respect for technical and design constraints.
Flooring Products	Plaster and gypsum are used in flooring applications, including floor screeds and levelling compounds.
Construction Chemicals	Formula offers high quality plaster and uncalcined gypsum products for use in various construction products and chemicals.

Fibrous Casting	Reinforced plaster casting is used in cases where higher quality, higher strength pieces are required, or where due to shape of the element e.g. fire surrounds, reinforcement is required in specific parts, such as angles which will support additional weight or stress. Reinforcements are also used to reduce the amount of plaster used, and thereby produce lighter weight elements.
Hollow Casting / Slush Casting	Hollow casting allows larger plaster pieces to be cast, without the weight of solid casting.
Solid Plaster Casting	Solid plaster casting may be carried out manually, or using continuous casting equipment for industrial scale production. Due to the solid nature of non-reinforced elements, drying may take longer than for items with thin sections.

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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Fine Casting

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