Geek Gaming Scenics
Fine Casting Plaster 500g
Fine Casting Plaster 500g
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Fine Casting Plaster 500g
Achieve crisp, detailed casts every time with Fine Casting Plaster 500g 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.
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
- ✔ 500g bag — ideal for small to medium casting projects
- ✔ 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
- Beginners and experienced modellers alike
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: 500g | Origin: Made in Great Britain
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Features
Features
- Create detailed and accurate casts of your objects
- Produce durable moulds that can be used multiple times
- Safe and easy to use
Weight / Volume
Weight / Volume
Weight: 500g |
Coverage / Measurements
Coverage / Measurements
Tips
Tips
- For best results, use clean, cold water when mixing the plaster.
- Add the plaster powder to the water gradually, stirring constantly to avoid lumps.
- Pour the plaster paste into the mould slowly and carefully to avoid trapping air bubbles.
- If you are making a large casting, you may need to pour the plaster paste in layers to ensure that it sets evenly.
- Allow the plaster to set completely before removing it from the mould. This can take several hours, depending on the size and thickness of the casting.
Instructions for use
Instructions for use
- Mix the plaster powder with water in the ratio below
- Stir until a smooth paste is formed.
- Pour the plaster paste into your mould.
- Allow the plaster to set completely before removing it from the mould.
- Plaster to Water Ratio (by weight) 1.43:1
- Water to plaster ratio ( by weight) 70%
- Plaster to water mix ratio (by weight) 100/70
- Chemical Properties:
- Chemical Name: Calcium sulphate hemihydrate
- Chemical Composition: CaSO4 .1/2 H2O
- Setting Parameters:
- Initial setting time (minutes) 20
- Final setting time (minutes) 25
Shipping & Returns
Shipping & Returns
UK Orders We dispatch orders Monday–Friday. Standard UK delivery typically takes 2–5 working days. Free shipping is available on UK orders over £50.
International Orders We ship worldwide! Delivery times vary by destination:
- Europe: 5–10 working days
- USA & Canada: 7–14 working days
- Rest of World: 10–21 working days
Please note that international orders may be subject to local customs duties and import taxes, which are the responsibility of the recipient.
Order Processing Orders are processed within 1–2 working days of payment confirmation. You'll receive a dispatch confirmation email with tracking information once your order is on its way.
Tracking All orders include tracking. Check your dispatch email for your tracking link, or log in to your account to view your order status.
Questions? If you have any questions about your order, please contact us
Care Instructions
Care Instructions
- Plaster based products are not recommended for conditions where they are likely to be located externally or in any way subjected to weathering or excessive dampness.
- Absorption of moisture can result in changes to physical properties, including a reduction in the set strength of plasters and also a lengthening of setting time. Gypsum minerals can be affected by absorption of moisture and may change physical properties.
- Store in a cool, dry place.
- Geek Gaming Scenics products are intended for hobby use and are not suitable for children under 3
- Wear appropriate safety gear when using products, such as gloves and eye protection.
- Do not use products near open flames or heat sources
- Keep products out of the reach of children and pets
