---
product_id: 731422078
title: "Hydro-Stone Plaster for Landscape, Diorama, Denture, Mold Casting - Great for Model Railway and Game (5 lbs)"
brand: "laguna"
price: "₩480238"
currency: KRW
in_stock: false
reviews_count: 2
category: "Laguna"
url: https://www.desertcart.kr/products/731422078-hydro-stone-plaster-for-landscape-diorama-denture-mold-casting-great
store_origin: KR
region: South Korea
---

# Waterproof resealable packaging Quick setting formula Lightweight yet ultra-strong Hydro-Stone Plaster for Landscape, Diorama, Denture, Mold Casting - Great for Model Railway and Game (5 lbs)

**Brand:** laguna
**Price:** ₩480238
**Availability:** ❌ Out of Stock

## Summary

> 🎨 Sculpt your masterpiece faster, stronger, and smarter with Hydrostone!

## Quick Answers

- **What is this?** Hydro-Stone Plaster for Landscape, Diorama, Denture, Mold Casting - Great for Model Railway and Game (5 lbs) by laguna
- **How much does it cost?** ₩480238 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/731422078-hydro-stone-plaster-for-landscape-diorama-denture-mold-casting-great)

## 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

- • **Color Your Vision:** Accepts liquid crystal and pigment colors for personalized, vibrant finishes.
- • **Mess-Free Storage:** Comes in a waterproof resealable bag to keep your plaster fresh and ready.
- • **Light as a Feather:** Lightweight white/light grey plaster reduces fatigue during handling and crafting.
- • **Speed Meets Strength:** Quick-setting formula lets you move fast without sacrificing structural integrity.
- • **Precision Casting Power:** Hydrostone is 40-50% harder than standard plaster for unmatched detail and durability.

## Overview

Hydrostone Plaster by Laguna is a premium, quick-setting gypsum plaster designed for detailed landscape dioramas, model railways, and game casting. It offers 40-50% greater hardness than typical casting plasters, is lightweight, and comes in a waterproof resealable bag. Ideal for professional and hobbyist creators seeking precision, durability, and vibrant color customization in their projects.

## Description

Hydrostone Quick Setting White/Light Grey Casting Plaster No need to cut with cheap gypsum fillers like popular brands. Designed for strength and casting detail. Accepts liquid crystal or crystal pigment colors and dirt. Packaged in a watertight resealable bag. Not leaky cartons. Ideal for model railway landscapes, game casting, and school projects dioramas. Not for body casting

Review: Great stuff! I’ve made some BEAUTIFUL vessels with this and Folk Art Metallic Paint.
Review: THIS ITEM WAS LOVE AT FIRST SIGHT. I USUALLY USE ULTRACAL 30 FOR PLASTER MOLD CASTING..BUT THIS NEW ITEM HYDRO- STONE HAS BEEN THE BEST...ITS STRONGER, MUCH WHITER, AND EVEN A BIT LIGHTER THAN ULTRACAL 30...EXTREMELY HAPPY . IN FACT I"M ABLE TO EXCHANGE MY ULTRACAL 30 TO HYDRO-STONE IN NYC, THEY TOLD ME NO PROBLEM...WOW EVEN HAPPIER NOW...WELL THAT IS WHEN THEY RE -OPEN

## Features

- Hydrostone plaster for landscape dioramas and castings with great attention to detail
- Quick setting, lightweight white/light grey plaster Comes in a waterproof resealable bag. Ideal for handles, figurines, commercial casts, and sculptures. Not recommended for outdoor use, not to create an outer shape or mother's shape
- Full strength Hydrostone gypsum plaster, do not cut with cheap gypsum fillers
- Designed for strength and casting details Hydrostone is 40% to 50% harder than casting plaster and works like plaster to mix, pour and harden
- Accepts liquid crystal or crystal pigment colors and dirt

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084M9TTNC |
| Brand Name | Laguna |
| Customer Reviews | 4.8 4.8 out of 5 stars (18) |
| Date First Available | January 11, 2024 |
| Item Weight | 2.27 kg |
| Manufacturer | USG |
| Number of Items | 1 |
| Package Dimensions | 27.9 x 25.4 x 7.6 cm |
| Package Weight | 2.27 kg |
| Size | 5ポンド |
| Specification Met | はい。 |

## Product Details

- **Brand:** Laguna
- **Color:** white, light grey
- **Item dimensions L x W x H:** 38.1 x 25.4 x 7.6 cm
- **Material:** Plaster
- **Shape:** フラット。

## Images

![Hydro-Stone Plaster for Landscape, Diorama, Denture, Mold Casting - Great for Model Railway and Game (5 lbs) - Image 1](https://m.media-amazon.com/images/I/41m-RSV6e6L.jpg)
![Hydro-Stone Plaster for Landscape, Diorama, Denture, Mold Casting - Great for Model Railway and Game (5 lbs) - Image 2](https://m.media-amazon.com/images/I/61BjjsYFtHL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Review
*by M***M on August 26, 2025*

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

### ⭐⭐⭐⭐⭐ Review
*by N***E on March 31, 2020*

THIS ITEM WAS LOVE AT FIRST SIGHT. I USUALLY USE ULTRACAL 30 FOR PLASTER MOLD CASTING..BUT THIS NEW ITEM HYDRO- STONE HAS BEEN THE BEST...ITS STRONGER, MUCH WHITER, AND EVEN A BIT LIGHTER THAN ULTRACAL 30...EXTREMELY HAPPY . IN FACT I"M ABLE TO EXCHANGE MY ULTRACAL 30 TO HYDRO-STONE IN NYC, THEY TOLD ME NO PROBLEM...WOW EVEN HAPPIER NOW...WELL THAT IS WHEN THEY RE -OPEN

## Frequently Bought Together

- Hydro-Stone Plaster for Scenery, Dioramas, Dentistry and Mold Casting, Also Great for Model Railroads & Gaming (5 lb)
- Norpro Silicone Bowl Set 3 Piece Red 1019R
- Lab Vibrator 4" Round Shaker Oscillator Gypsum 𝙂𝙚𝙩 𝙊𝙪𝙩 𝘽𝙪𝙗𝙗𝙡𝙚 Mixing Machine,Roundness Vibrador Laboratory Tool Equipment 100W Plaster Vibrator Plate

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**Shop now:** [https://www.desertcart.kr/products/731422078-hydro-stone-plaster-for-landscape-diorama-denture-mold-casting-great](https://www.desertcart.kr/products/731422078-hydro-stone-plaster-for-landscape-diorama-denture-mold-casting-great)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-05-19*