---
product_id: 187467630
title: "Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (10 lb)"
brand: "laguna"
price: "HK$1329"
currency: HKD
in_stock: true
reviews_count: 8
category: "Laguna"
url: https://www.desertcart.hk/products/187467630-hydro-stone-plaster-for-scenery-dioramas-dentistry-and-mold-casting
store_origin: HK
region: Hong Kong
---

# Water-resistant resealable bag Quick setting in minutes 40-50% harder than standard plaster Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (10 lb)

**Brand:** laguna
**Price:** HK$1329
**Availability:** ✅ In Stock

## Summary

> 🎨 Sculpt your vision with Hydro-Stone — where detail meets durability!

## Quick Answers

- **What is this?** Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (10 lb) by laguna
- **How much does it cost?** HK$1329 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/187467630-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

- • **Mess-Free Storage:** Water-tight resealable bag keeps powder fresh and ready
- • **Fast-Track Your Creativity:** Quick setting to speed up your project workflow
- • **Built to Last, Not to Crack:** 40-50% harder than typical casting plasters for durable results
- • **Precision Castings Every Time:** Captures fine details with ultra-hard gypsum formula
- • **Custom Colors, Unlimited Style:** Accepts liquid and crystal pigments for personalized finishes

## Overview

Hydro-Stone is a premium, quick-setting gypsum plaster designed for high-strength, detailed castings in dioramas, model railroads, gaming, and sculpture. Packaged in a water-resistant resealable bag, it offers 40-50% greater hardness than standard plasters and accepts a wide range of pigments for custom finishes. Ideal for professionals and hobbyists seeking precision and durability in their creative projects.

## 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: Hydro stone for Jewelry container - I bought this hydro stone for a jewelry container and it came out nice
Review: Good Quality. Works Well. Dries FAST! - Great stuff! I’ve made some BEAUTIFUL vessels with this and Folk Art Metallic Paint.

## 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 | B084MB95DN |
| Best Sellers Rank | #51,020 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #478 in Sculpture Molding & Casting Products |
| Customer Reviews | 4.6 4.6 out of 5 stars (86) |
| Date First Available | February 9, 2020 |
| Item Form | Powder |
| Item Weight | 10 pounds |
| Manufacturer | USG |
| Number of Items | 1 |
| Product Dimensions | 15 x 9 x 4 inches |

## Product Details

- **Brand:** Laguna
- **Color:** white / light gray
- **Item dimensions L x W x H:** 15 x 9 x 4 inches
- **Material:** Plaster
- **Shape:** Flat

## Images

![Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (10 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

### ⭐⭐⭐⭐⭐ 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

### ⭐⭐⭐⭐⭐ Good Quality. Works Well. Dries FAST!
*by M***M on August 26, 2025*

Great stuff! I’ve made some BEAUTIFUL vessels with this and Folk Art Metallic Paint.

### ⭐⭐⭐⭐ Good product…wish it was more budget friendly
*by K***O on September 29, 2025*

This is a good product not too hard to make what I wanted it for it dries fast the color is amazing I use this to make my cement candle vessels It’s on the expensive side but it eorkef

## Frequently Bought Together

- Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (10 lb)
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**Shop now:** [https://www.desertcart.hk/products/187467630-hydro-stone-plaster-for-scenery-dioramas-dentistry-and-mold-casting](https://www.desertcart.hk/products/187467630-hydro-stone-plaster-for-scenery-dioramas-dentistry-and-mold-casting)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-13*