---
product_id: 384396558
title: "USG Interiors HYDROSTONE TB 10 lb Bag - Gypsum Cement - Extremely Hard, High Compressive Strength, Fine Detail"
brand: "usg interiors"
price: "1174 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/384396558-usg-interiors-hydrostone-tb-10-lb-bag-gypsum-cement-extremely
store_origin: RO
region: Romania
---

# captures ultra-fine detail high water absorption resistance 40-50% harder than regular plaster USG Interiors HYDROSTONE TB 10 lb Bag - Gypsum Cement - Extremely Hard, High Compressive Strength, Fine Detail

**Brand:** usg interiors
**Price:** 1174 Lei
**Availability:** ✅ In Stock

## Summary

> 💎 Sculpt with strength, detail, and brilliance—don’t settle for less!

## Quick Answers

- **What is this?** USG Interiors HYDROSTONE TB 10 lb Bag - Gypsum Cement - Extremely Hard, High Compressive Strength, Fine Detail by usg interiors
- **How much does it cost?** 1174 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/384396558-usg-interiors-hydrostone-tb-10-lb-bag-gypsum-cement-extremely)

## Best For

- usg interiors enthusiasts

## Why This Product

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

## Key Features

- • **Bright White Cure:** Cures to a brilliant white, enhancing the visual appeal of your finished pieces.
- • **Unmatched Durability:** Hydrostone is 40-50% harder than standard casting plaster, ensuring long-lasting strength.
- • **Water-Resistant Finish:** High water absorption resistance keeps your creations pristine and durable.
- • **Precision Detail Capture:** Perfect for sculptures and architectural models that demand razor-sharp fine detail.
- • **Versatile Artistic Medium:** Ideal for dioramas, trophies, and intricate castings—professional-grade quality for serious creators.

## Overview

USG Interiors HYDROSTONE TB is a premium gypsum cement known for its exceptional hardness—40-50% tougher than regular plaster—offering superior compressive strength and water resistance. It captures ultra-fine detail, cures bright white, and is favored by professionals for sculptures, trophies, and architectural castings requiring durability and precision.

## Description

USG Hydro-Stone TB Gypsum Cement is an excellent product for manufacturing solid cast architectural, art novelty and statuary products. USG Hydro-Stone TB Gypsum Cement is extremely hard, has high compressive strength, and has high water absorption resistance while giving extremely fine detail duplication.

## Features

- Extremely Hard and Durable. Captures Very Fine Detail
- Popular with Sculptures, Trophies, and Architectural Structures that Require Strength and Duraability
- Hydrostone Plaster for Scenery Dioramas and Casting, Creates Super Hard Castings With Great Detail
- Cures Bright White when fully dry
- Hydrostone is 40% to 50% harder than regular casting plaster. Works much like plaster in mixing, pouring, and setting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | USG Interiors |
| Model Number | HydrostoneTB10lb |
| Color | White |
| Package Dimensions | 45.21 x 24.99 x 6.5 cm; 4.54 kg |
| Material | gypsum |
| Special Features | Waterproof |
| Item Weight | 4.54 Kilograms |

## Product Details

- **Brand:** USG Interiors
- **Specific uses for product:** Art
- **Material:** gypsum
- **Item form:** Powder
- **Special features:** Waterproof

## Images

![USG Interiors HYDROSTONE TB 10 lb Bag - Gypsum Cement - Extremely Hard, High Compressive Strength, Fine Detail - Image 1](https://m.media-amazon.com/images/I/51U-tQe70zL.jpg)
![USG Interiors HYDROSTONE TB 10 lb Bag - Gypsum Cement - Extremely Hard, High Compressive Strength, Fine Detail - Image 2](https://m.media-amazon.com/images/I/511yjAxZdyL.jpg)

## Questions & Answers

**Q: What does the TB after the name mean?**
A: USG Hydrostone TB is the low-expansion version of regular Hydrostone.  Values from the USG Datasheets, first value is Hydrostone, second is Hydrostone TB
Mix Ratio, by weight, parts water to parts powder:  32, 30 to 32
Setting Time:  19-25min, 15-23min
Compressive Strength, 1 Hour:  4,000psi, 3,000psi
Compressive Strength, Dry:  10,000psi, 8,000psi
pH:  7.73, 11.13
Max Expansion:  0.24%, 0.09%

Setting time is influenced by the temperature of the water and powder when mixing.  Temps in the range of 50-70F extend the setting time, while temps in the range of 70-90F shorten the setting time.  Above 80F, the setting time may be just a few minutes.

Compressive strength is influenced by completeness of mixing, and USG recommends a power mixing blade for larger batches.  A kitchen whisk tool with vigorous motion works for small batches, roughly less than 0.5lb/250g.

**Q: Would this be hard enough to cast small details without those small details easily breaking off? And strong enough to send through the mail?**
A: Yes it is very hard. I mail things that are made of hydro stone all the time. I do wrap the thinnest pieces with extra bubble wrap. Hope that is helpful.

**Q: Is this good for body casting art (pouring into the casted mold) or is there something better to use?**
A: Don’t think it would be good for that because there are warnings that it can cause irrational or burns to skin. I used it for molding walls and floor tiles for miniature gaming. Worked great for that.

**Q: How well does it take color?**
A: Before painting you will need a clear sealer. I use spray paint.

## Frequently Bought Together

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-19*