Potters Plaster

High grade potters plaster predominantly used for the production of plaster slip molds as well as slab & slump/hump molds.  The required water content will differ dependant on item size and function. 

Our plaster is always in date - be advised that potters plaster does have a use by date clearly identified on the original packaging.

Physical Properties

• Colour: White 
• Working time: Setting Type – 10 -12 minutes knife-set time 
• Packaging: 20kg bags.
• Compressive Strength*: Wet 6000kPa (min), Dry 13,000kPa (min)
• Linear Expansion*: 0.05 - 0.25% 
• Surface Area: 5000 cm2/g (min) 
• S.G.: 2.63
• Solubility: 0.6g/100ml 
• Decomposition Temperature: 163oC 
• VOC: Less than 50 grams per litre 
• *Values determined at water/plaster ratio of 65ml/100g.

Applications

• Suitable for use in slip molds for ceramic pieces, plaster models and craft replicas
• Also suitable for the manufacture of compression molds in the slab casting of crockery and tableware

Features and Benefits

• High strength
• Easy to use for mold casting
• Suitable for compression molds