A fine additive that slows the setting time of gypsum, plaster, and cement products. Ideal for lifecasting and mold-making, it offers more working time and control without affecting final strength. Use sparingly—only small amounts are needed.
(€ 26.30 without 21% VAT)
ULTRACAL 30 is a premium, super-strength gypsum cement formulated to meet the demanding standards of the patternmaking, mold-making, and special effects industries. Designed for extreme accuracy and superior surface hardness, it’s ideal for applications such as duplicator models, lifecasting support shells, and precision molds. With the lowest expansion rate of any rapid-setting gypsum cement, ULTRACAL 30 ensures minimal distortion and outstanding dimensional stability—perfect for detailed, high-tolerance work.
This professional-grade material features a pot life of approximately 25 minutes and a curing time of about 80 minutes, allowing ample working time while still delivering a strong, dense finish. When properly mixed, it produces a smooth, durable surface that captures fine detail and resists chipping.
Usage Tips:
Always weigh the water first, then slowly add the powder to the water—never the reverse.
Mix thoroughly to achieve a creamy consistency.
Times may vary depending on water and ambient temperature.
Trusted by artists, mold makers, and FX professionals worldwide, ULTRACAL 30 provides the precision and strength needed for the most demanding creative projects.
| Expansion | Lowest of any rapid-setting gypsum cement |
| Weight | 50 lbs |
| Mix Ratio | 38 parts water by weight per 100 parts plaster |
| Set Time | 25-35 minutes |
| Product Name | Ultracal-30 |
A fine additive that slows the setting time of gypsum, plaster, and cement products. Ideal for lifecasting and mold-making, it offers more working time and control without affecting final strength. Use sparingly—only small amounts are needed.
ULTRACAL 30 is a super-strength gypsum cement ideal for patternmaking, offering high accuracy and surface hardness with minimal expansion. Remember to weigh water first and add the powder to it. All times are approximate, influenced by water and ambient temperature.
High-quality gypsum for lifecasting, sculpting, and molding. Offers excellent detail reproduction and a smooth finish. Available in a 25 kg package, suitable for large projects.
High-quality, fast-setting plaster bandage ideal for lifecasting and SFX work. With a 3.5-minute working time, it applies smoothly, conforms easily, and sets into a strong, lightweight shell. Perfect for creating durable mother molds over alginate or silicone.
CALCAST® 200 is a semi-hard plaster combining cost-effectiveness with hardness. Ideal for casting decorative items, wall bricks, panels, and ornaments. Available for pick-up in Amsterdam. Note: Weigh water first, add powder to water. Times are approximate, affected by temperature.
High-quality, fast-setting plaster bandage ideal for lifecasting and SFX work. With a 3.5-minute working time, it applies smoothly, conforms easily, and sets into a strong, lightweight shell. Perfect for creating durable mother molds over alginate or silicone.
Cellona plaster bandage splints are ideal for making quick support shells on alginate, body double, or silicone brush-up molds, offering lightweight, sturdy, and easy-to-use reinforcement.
Instructions for using MarbleCast gypsum: Mix plaster with water, soak briefly, and mix mechanically. Set begins in 10 min and ends in 13 min with hardening by 30 min. Always add powder to water, not the reverse. Times may vary with temperature.
| Product | Expansion | Mix Ratio By Volume | Mix Ratio By Weight | Expansion | Weight | Mix Ratio | Set Time | Product Name |
|---|---|---|---|---|---|---|---|---|
| Gypsum Retarder | - | - | - | - | - | - | - | - |
| UltraCal | Lowest of any rapid-setting gypsum cement | 38 parts water by weight per 100 parts plaster | 50 lbs | Lowest of any rapid-setting gypsum cement | 50 lbs | 38 parts water by weight per 100 parts plaster | 25-35 min. | Ultracal-30 |
| PlasterCast | - | - | - | - | - | - | - | - |
| Plaster Bandage 5 roll Package | - | - | - | - | - | - | - | - |
| CalCast | - | - | - | - | - | - | - | - |
| Plaster Bandage Single | - | - | - | - | - | - | - | - |
| Plaster Splints | - | - | - | - | - | - | - | - |
| MarbleCast | - | - | - | - | - | - | - | - |