Description

Calcium sulphate hemihydrate, particularly indicated for the manufacture of ceramic casting moulds.

MIXING
The plaster/ water ratio indicated below is recommended. Less water increases strength, but less time is available for emptying. The plaster is poured into the water (never the other way around), is allowed to moisten and is mixed for approximately one minute, stirring it gently and evenly to prevent the formation of air bubbles. The recipients must be clean.

STORAGE
Store in dry areas on wooden slats, with spaces between rows and with the wall to ensure free air circulation. The plaster can be stored in these conditions for months without losing its properties.

PHYSICAL SPECIFICATIONS

Colour White
Ph Approx 7
Mixing Rate 145 – 155 gr plaster / 100 gr water
Water Factor 65 gr water/ 100 gr plaster (water/ plaster ratio used to obtain results of analysis)
Start setting time 9 – 11 minutes
Finish Setting Time 29 – 33 minutes
Setting Expansion 2.1 mm / m
Flexural Strength 70 kg / cm²
Compressive Strength 190 kg / cm²
Brinell Hardness 360 kg / cm²