---
product_id: 57550100
title: "ULTRACAL 30 Gypsum Cement - Plaster - for Dot Mandala, Mold Making and Casting, Ideal for Latex Molds! Takes Excellent Detail (10 lb)"
brand: "laguna"
price: "€ 127.40"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fr/products/57550100-ultracal-30-gypsum-cement-plaster-for-dot-mandala-mold-making
store_origin: FR
region: France
---

# Takes Fine Details Very Durable Very Low Expansion ULTRACAL 30 Gypsum Cement - Plaster - for Dot Mandala, Mold Making and Casting, Ideal for Latex Molds! Takes Excellent Detail (10 lb)

**Brand:** laguna
**Price:** € 127.40
**Availability:** ✅ In Stock

## Summary

> 🎨 Unleash Your Creativity with ULTRACAL 30!

## Quick Answers

- **What is this?** ULTRACAL 30 Gypsum Cement - Plaster - for Dot Mandala, Mold Making and Casting, Ideal for Latex Molds! Takes Excellent Detail (10 lb) by laguna
- **How much does it cost?** € 127.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/57550100-ultracal-30-gypsum-cement-plaster-for-dot-mandala-mold-making)

## Best For

- laguna enthusiasts

## Why This Product

- Trusted laguna brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heat Awareness:** Caution: Can get hot during curing—handle with care!
- • **Precision Crafting:** Achieve museum-quality results with every cast.
- • **Professional Grade:** Designed exclusively for serious artists and mold makers.
- • **Versatile Applications:** Perfect for both latex and gelatin molds.
- • **Durability Meets Detail:** Engineered for long-lasting, intricate designs.

## Overview

ULTRACAL 30 Gypsum Cement is a professional-grade plaster designed for mold making and casting, weighing 10 lbs. It features very low expansion and exceptional durability, making it ideal for intricate designs and museum-quality results. Perfect for use with latex and gelatin molds, it requires careful handling due to heat generation during curing.

## Description

Super-strength gypsum cement recommended where extreme accuracy and greater surface hardness are required, as in duplicator models. Harder and stronger than HYDROCAL A-11 and HYDROCAL B-11 cements, UltraCal 30 cement has the lowest expansion of any rapid-setting gypsum cement available. Has a gradual set and long period of plasticity. Ideal for splash-casting molds and models for phenolic, polyester and epoxy resins. It was designed to give the pattern making industry the ultimate in a gypsum cement tooling medium. MIX RATIO: The manufacture recommended mix-ratio of Ultra Cal 30 is (38 parts water to 100 parts) Ultra Cal 30 by weight. The average setup time is 25-35 minutes when manually mixed. Please note that parts can be in grams, ounces or pounds etc. Do not mix with your hands, A paint paddle or electric paint mixer is recommended. WARNING: This product is for making molds of industrial patterns only. When mixed with water, ultra cal undergoes a chemical reaction which causes it to harden and then slowly become very hot and highly alkaline (corrosive to skin like drain cleaner.) If mixed incorrectly this process can happen very rapidly. DO NOT attempt to make a mold enclosing any part of the body using this material. Failure to follow these instructions can cause severe chemical burns that may require surgical removal of affected tissue. Dust from products may cause eye, skin, nose, throat, or respiratory irritation. Use eye, skin, and respiratory protection in accordance with good industrial hygiene practices. Keep out of reach of children

## Features

- Ultracal 30 Gypsum Cement for Professional Molding and Plaster Casting - 10 lbs
- Very Low Expansion, Very Durable.
- Ideal for Latex Molds and Gelatin Molds. Popular also as a museum quality casting plaster
- Takes Extremely Fine Details!
- Professional Use Only. Can Get Hot When Hardening. Avoid contact with skin and uncured material

## Product Details

- **Brand:** Laguna
- **Material:** Cement
- **Item Form:** Powder
- **Special Feature:** Strong
- **Color:** Off White/ Gray

## Images

![ULTRACAL 30 Gypsum Cement - Plaster - for Dot Mandala, Mold Making and Casting, Ideal for Latex Molds! Takes Excellent Detail (10 lb) - Image 1](https://m.media-amazon.com/images/I/61f3kZrnQEL.jpg)

## Questions & Answers

**Q: Is it difficult to remove from a silicone mold once cured?  Thanks!**
A: No... It is very easy to remove from a silicone mold....    It does not stick to it at all....    Just make sure the item is cured....

**Q: What's the beast sealant to use to preserve my mold?**
A: I got a clear seal from Lowe's.   It works great.  Make sure all the paint is dry before you apply it.

**Q: Can this be used in alginate mold for 3D hand sculptures?  if yes how many double hand molds would 10# make?**
A: This gets very warm when setting up. Do not use for hand sculptures

**Q: Can this be usrd on furniture**
A: How do you wanna use it? My go to answer is no it probably shouldn’t be used on furniture. I used it to make molds of clay models.

## Customer Reviews

### ⭐⭐⭐⭐⭐ super smooth finish, perfect for dot mandalas
*by S***N on February 7, 2025*

this product was recommended by happydottingco.com to use with their silicone casting molds. it is perfect, bubble free finish, extremely smooth and easy to use for a first time caster.

### ⭐⭐⭐⭐⭐ Not hard to use !!
*by R***N on December 3, 2020*

As a newbie to Mandala painting and living in an area where the right shaped rocks are hard to find, making your own was deemed necessary. I found that the use of ULTRACAL 30 was not as difficult as the instructions seemed to make out. I have poured my own stones, of the perfect shape and size, and found I could sell half the result for enough to purchase my next bag for my own use. A perfect stone is the best starting place to find yourself. They are smooth and perfect as the molds and do not fall apart if dropped. All in all, they are the best place to start. ULTRACAL 30 is the perfect product for the person striving for perfection in the hobby of Mandala painting.

### ⭐⭐⭐⭐⭐ Mask making
*by J***N on October 25, 2024*

Utilized this to make a cast of an oil based clay sculpture for mask making. Worked well for that and was easy to work with - although curing was slower due to a lower outdoor temperature. Easy to mix by hand.

## Frequently Bought Together

- ULTRACAL 30 Gypsum Cement - Plaster - for Dot Mandala, Mold Making and Casting, Ideal for Latex Molds! Takes Excellent Detail (10 lb)
- Tea Light Candle Holder Silicone Mold - by Happy Dotting Company - Round Shape - Tealight Candle Molds for Cement Casting - DIY & Creative Projects - Dotting and Mandala Art
- Mold for Making Stones with Dome Template - Design #2 - Happy Dotting Company - Round Smooth Pebble Like for dot Art Rocks, Mandala Art DIY Crafts Painting Drawing - Gypsum, Cement Rock Casting

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fr/products/57550100-ultracal-30-gypsum-cement-plaster-for-dot-mandala-mold-making](https://www.desertcart.fr/products/57550100-ultracal-30-gypsum-cement-plaster-for-dot-mandala-mold-making)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-27*