Mora Pro

Mora Pro is a hemihydrate plaster (CaSO4x1/2 H2O) produced from naturally occurring gypsum mineral. It is off-white in colour. This product is particularly suited when constant absorption and long mould life are required to obtain high productivity and excellent quality. This product is used in the ceramics industry to produce working moulds for the slip casting of Sanitaryware and Tableware. It can also be used for the production of working moulds for the automatic forming of clay in tableware.

Benefits

Design for jiggering & jollying and slip casting application in Tableware

Design for slip casting in Sanitaryware

High mechanical properties in order to obtain longer mould life

Markets

Ceramics

Applications

Sanitaryware

Tableware

Technical data

Physical Properties
Apparent Bulk Density (g/lt)	600 - 700
Particle Size Distribution (mesh size and % weight retained)	< 0.7% at 150 μm

Mechanical Properties
Brinell Hardness (MPa)	Min. 14
Dry compressive strength (Mpa)	Min. 12
Flexural Strength (MPa)	Min. 4

Chemical Properties
Chemical Composition	CaSO4x1/2 H2O
Chemical Name	hemihydrate plaster

Setting Parameters
Initial setting time (minutes)	10-22
Linear Expansion (%)	Max. 0.22
Vicat Ring Fluidity (cm)	16-24

Plaster to Water Ratio
Plaster to water mix ratio (by weight)	1.50 :1
Plaster to Water Ratio (by weight)	1.50:1
Water to plaster ratio ( by weight)	66.7%

Instructions for use

The recommended plaster to water ratio is between 1,43 and 1,55: 1, with a mixing time of approx. 2 to 4 minutes, depending on batch size.Mixing utensils should always be clean and free from set plaster. Use distilled water only. For consistent results, attention must be given to the correct proportioning and mixing of the plaster and water.

Add the weighed quantity of plaster slowly into the measured volume of water and allow to soak. Do not mix fresh plaster with that which has been mixed for some time previously. Changes to plaster to water ratio will influence product performance, particularly setting time and strength and absorption capability.

Packaging and shelf life

Bag

Packaging available : 30.3 kg

Shelf life : 6

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