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British Gypsum Formula Fine Casting Plaster is a premium-grade plaster of Paris designed for hobbyists, artists, and professional craftspeople who require high-fidelity detail in their casting projects. Ideal for creating intricate decorative cornices, ceiling roses, and small-scale models, this British-made product offers exceptional consistency and a smooth finish. While it is the industry standard for performance, users should note that as a pure gypsum-based material, it requires precise measurement and careful handling to ensure optimal setting times and structural integrity.
| Colour | White |
|---|---|
| Model Part Number | 132 01 |
| Brand | British Gypsum |
The recommended ratio is 70 parts water to 100 parts plaster by weight.
No, this is a gypsum-based product designed for interior use. It will deteriorate if exposed to moisture or rain.
The setting time can vary based on ambient temperature and water ratio, but generally, it provides enough working time for intricate pours before initiating the hardening phase.
It is a standard plaster product, but you should avoid inhaling dust during mixing by wearing a dust mask and washing your hands after handling.
Keep the remaining powder in the original packaging, sealed tightly, and stored in a dry, ventilated area away from humidity.
Yes, once the plaster is completely dry and cured, it provides an excellent surface for primers and various paints.
Ensure your water temperature is cool and consistent. Warm water accelerates the setting reaction.
Reduce mixing speed to avoid incorporating air and gently vibrate or tap the mold after pouring.
This often indicates too much water was used. Re-measure the ratio to exactly 70 parts water to 100 parts plaster by weight.
To prepare your plaster, always add the powder to the water, not the other way around. This prevents clumping and ensures a smooth consistency. Use a clean bucket and mixing tool to avoid contamination from previous projects, which can significantly alter setting times.
Compatibility is high across most common mold materials like silicone, rubber, and plaster waste-molds. For care, store the 25Kg bag in a cool, dry place raised off the ground on a pallet. Exposure to moisture will cause the product to harden prematurely in the bag. Clean all mixing tools immediately after use, as dried plaster is significantly harder to remove once fully cured.
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