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eBay£10.18Visit shop Mould Master British Gypsum Fine Casting Plaster 1Kg, 20 x 15 x 1 cm, White
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Designed for artists, hobbyists, and professional mould-makers, Mouldmaster British Gypsum Fine Casting Plaster offers exceptional detail reproduction and a durable, hard-set finish. It is the ideal choice for those creating intricate sculptures or architectural casts, though users should note the rapid 20-minute setting time requires quick and efficient pouring once mixed.
| Colour | White |
|---|---|
| Brand | Mouldmaster |
While it sets in 20 minutes, it is best to wait at least 30 to 45 minutes to ensure the cast has enough structural integrity to be de-moulded without breakage.
Yes, once the plaster is fully dry and cured, you can prime and paint it with acrylics, watercolours, or sealers.
No, this is a construction and craft-grade plaster and is not suitable for food-contact surfaces.
Sift the powder slowly into the water and mix thoroughly, then tap the filled mould to encourage air bubbles to rise to the surface.
It has minimal shrinkage, making it excellent for accurate, dimensionally stable projects.
You likely used too much water. Ensure you follow the manufacturer's recommended weight ratio for the best results.
Tap the mould against the table immediately after pouring and ensure you are not pouring from too high a distance.
Ensure the water temperature is cool; warm water accelerates the chemical setting process.
To prepare the plaster, always add the powder to clean water rather than adding water to the powder to ensure a smooth, lump-free mix. Use a plastic or rubber mixing bowl for easy cleanup, as dried plaster peels away easily from these surfaces.
