---
product_id: 483977649
title: "USG HYDROSTONE TB 10 lb Bag - Gypsum Cement - Extremely Hard, High Compressive Strength, Fine Detail"
brand: "usg interiors"
price: "1697.56 DT"
currency: TND
in_stock: true
category: "Usg Interiors"
url: https://www.desertcart.tn/products/483977649-usg-hydrostone-tb-10-lb-bag-gypsum-cement-extremely-hard
store_origin: TN
region: Tunisia
---

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

**Brand:** usg interiors
**Price:** 1697.56 DT
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** USG HYDROSTONE TB 10 lb Bag - Gypsum Cement - Extremely Hard, High Compressive Strength, Fine Detail by usg interiors
- **How much does it cost?** 1697.56 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/483977649-usg-hydrostone-tb-10-lb-bag-gypsum-cement-extremely-hard)

## 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 Finish:** Cures to a brilliant white, enhancing the visual impact of your creations.
- • **Unmatched Durability:** Hydrostone is 40-50% harder than standard casting plaster, ensuring long-lasting strength.
- • **Water Resistant Formula:** High resistance to water absorption keeps your work 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 statuary—engineered for professional-grade results.

## Overview

USG Hydro-Stone TB Gypsum Cement is a premium, extremely hard gypsum plaster that offers 40-50% greater hardness than regular casting plaster. It delivers high compressive strength, water resistance, and exceptional fine detail capture, curing to a bright white finish. Perfect for professional artists, sculptors, and architects seeking durable, precise, and visually striking castings.

## 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 |
|---------------|-------|
| ASIN | B089QXXS31 |
| Brand | USG Interiors |
| Colour | White |
| Country of Origin | USA |
| Item Form | Powder |
| Item Package Quantity | 1 |
| Item Volume | 6.25 Gallons |
| Item Weight | 4 kg 540 g |
| Item model number | 72194 |
| Manufacturer | USG |
| Material | stone |
| Net Quantity | 4731.76 Milliliters |
| Package Information | Bag |
| Special Feature | durable |
| Specific Uses For Product | art |
| UPC | 821079271425 |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** USG Interiors
- **Item Form:** Powder
- **Material:** stone
- **Special Feature:** durable
- **Specific Uses For Product:** art

## Images

![USG 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)

## 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.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-03-14*