Fine Casting Plaster 1kg
Fine Casting Plaster 1kg
Achieve crisp, detailed casts every time with Fine Casting Plaster 1kg from Geek Gaming Scenics. This high-quality calcium sulphate hemihydrate casting plaster is easy to mix, quick to set, and non-toxic — making it the reliable choice for hobbyists and modellers casting miniature figurines, terrain features, props, and scenic details.
With an initial set time of just 20 minutes and a smooth, fine-grain finish, it's ideal for capturing intricate mould detail with consistent, durable results every time. The larger 1kg bag is perfect for bigger terrain projects, bulk casting runs, and modellers who go through plaster regularly.
Why Choose Fine Casting Plaster?
- ✔ High-quality fine finish — captures crisp mould detail for accurate, detailed casts
- ✔ Quick setting — initial set in ~20 minutes, final set in ~25 minutes
- ✔ Easy to mix — simple water-to-plaster ratio for consistent results every time
- ✔ Non-toxic & environmentally friendly — safe for hobby use
- ✔ Large 1kg bag — ideal for bigger terrain boards, bulk casting, and regular use
- ✔ Made in Great Britain by Geek Gaming Scenics
Perfect For
- Casting miniature figurines, terrain features, and scenic props
- Creating reusable moulds for wargaming and hobby projects
- Reproducing rock faces, cobblestones, and architectural details
- Larger terrain boards and bulk casting projects
How to Use
- Measure your plaster and water using the ratio below.
- Add the plaster powder to the water gradually, stirring constantly to avoid lumps until a smooth paste forms.
- Pour the plaster paste slowly into your mould to avoid trapping air bubbles.
- Allow to set completely before removing from the mould (initial set ~20 min, final set ~25 min).
- Once fully set, paint or seal as desired.
Mixing Ratio
- Plaster to water ratio (by weight): 100:70
- Water to plaster ratio (by weight): 70%
Technical Data
- Chemical name: Calcium sulphate hemihydrate
- Chemical formula: CaSO₄ · ½H₂O
- Initial setting time: ~20 minutes
- Final setting time: ~25 minutes
Not recommended for external use or conditions subject to weathering or excessive dampness. Store in a cool, dry place.
Weight: 1kg | Origin: Made in Great Britain
Delivery
Fast & Free Delivery on Eligible Items.
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Returns
Something not quite right? You have 14 days from the day you receive it, to send something back.
Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken. Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.
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