---
product_id: 215926027
title: "Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (25 lb)"
brand: "laguna"
price: "46034 kr"
currency: ISK
in_stock: true
reviews_count: 8
url: https://www.desertcart.is/products/215926027-hydro-stone-plaster-for-scenery-dioramas-dentistry-and-mold-casting
store_origin: IS
region: Iceland
---

# Water-resistant resealable bag 40-50% harder than standard plaster Quick setting in minutes Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (25 lb)

**Brand:** laguna
**Price:** 46034 kr
**Availability:** ✅ In Stock

## Summary

> 🎨 Cast with confidence, create with precision — Hydrostone means no compromises!

## Quick Answers

- **What is this?** Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (25 lb) by laguna
- **How much does it cost?** 46034 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/215926027-hydro-stone-plaster-for-scenery-dioramas-dentistry-and-mold-casting)

## 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

- • **Fast & Efficient:** Quick setting formula lets you move from mold to masterpiece faster than ever.
- • **Mess-Free Storage:** Comes in a water-tight resealable bag to keep your plaster fresh and ready.
- • **Unmatched Durability:** Hydrostone is 40-50% harder than typical casting plaster, ensuring your creations last a lifetime.
- • **Precision Detail Casting:** Captures intricate details perfectly, ideal for dioramas, miniatures, and fine sculptures.
- • **Customizable Color Options:** Accepts liquid and crystal pigments for personalized, vibrant finishes.

## Overview

Hydro-Stone Plaster is a premium, commercial-grade gypsum plaster designed for superior strength and fine detail casting. It sets quickly, is 40-50% harder than standard plaster, and comes in a water-resistant resealable bag. Perfect for scenery, dioramas, model railroads, gaming miniatures, and detailed sculptures, it accepts pigments for custom coloring and ensures long-lasting, professional-quality results.

## Description

Hydrostone quick setting white / light gray casting plaster. Full strength gypsum plaster is not cut with cheap plaster fillers like the popular brand! Designed for strength and casting detail. Accepts liquid or crystal pigment colors and stains. Packed in water tight resealable bag, not a leaky carton. Great for model railroads scenery, gaming castings, and school project dioramas. Not for body casting.

Review: Priceless for long lasting quality. - I buy this product and love it. I make molds of the babies and children in our hospital that don’t make it. Babies that are born still or die shortly after birth and children who we are unable to resuscitate in the ER. This product is strong and holds up even on the smallest of babies. The youngest one was just 12 weeks gestation. This is a four year old who drown. This is the last memento that the family will have and this holds up so much better than plaster of Paris.
Review: Hydro stone for Jewelry container - I bought this hydro stone for a jewelry container and it came out nice

## Features

- Hydrostone Plaster for Scenery Dioramas and Casting, Creates Super Hard Castings With Great Detail
- Quick setting, lightweight white / light gray plaster in water resistant resealable bag. Ideal for patterns, figurines, commercial casts, and sculpture. It is not for making outer or mother molds, and it is not recommended for outdoor use.
- Full strength Hydrostone gypsum plaster, not cut with cheap plaster fillers
- Designed for strength and casting detail. Hydrostone is 40% to 50% harder than casting plaster and works much like plaster in mixing, pouring, and setting.
- Accepts liquid or crystal pigment colors and stains

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084MB96TN |
| Best Sellers Rank | #67,739 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #546 in Sculpture Molding & Casting Products |
| Brand | Laguna |
| Brand Name | Laguna |
| Color | Not Specified |
| Customer Reviews | 4.7 out of 5 stars 96 Reviews |
| Grade Rating | Commercial |
| Item Dimensions | 13 x 10 x 3 inches |
| Item Form | Powder |
| Item Shape | Square |
| Item dimensions L x W x H | 13 x 10 x 3 inches |
| Manufacturer | USG |
| Material | Plaster |
| Number of Items | 1 |
| Part Number | Hydrostone |
| Shape | Square |

## Product Details

- **Brand:** Laguna
- **Color:** Not Specified
- **Item dimensions L x W x H:** 13 x 10 x 3 inches
- **Material:** Plaster
- **Shape:** Square

## Images

![Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (25 lb) - Image 1](https://m.media-amazon.com/images/I/61BjjsYFtHL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is hydrostone heavy when dry?**
A: Heaviness is relative.

**Q: Is it very white not off white**
A: hydrostone is mostly very white. it can be off white depending on several factors including batch variation, water impurities when mixing, and others. it is usually very white.

**Q: What is the density of the powder?**
A: 108 lbs/cu. ft dry, 119 lbs/cu ft wet. The 50lb bag of powder is about 24"x16"x7". So that's approximately 1.5cu ft. 50/1.5 gets you about 33 and a 1/3. Right around there.  I don't know the exact dimensions of the bag, yo.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Priceless for long lasting quality.
*by L***D on July 23, 2026*

I buy this product and love it. I make molds of the babies and children in our hospital that don’t make it. Babies that are born still or die shortly after birth and children who we are unable to resuscitate in the ER. This product is strong and holds up even on the smallest of babies. The youngest one was just 12 weeks gestation. This is a four year old who drown. This is the last memento that the family will have and this holds up so much better than plaster of Paris.

### ⭐⭐⭐⭐⭐ Hydro stone for Jewelry container
*by P***S on February 16, 2026*

I bought this hydro stone for a jewelry container and it came out nice

### ⭐⭐⭐⭐⭐ Great Product!
*by M***N on July 29, 2025*

I love Hydrostone so much! It makes beautiful pieces! This is a great price!

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-09-15*