---
product_id: 436351267
title: "Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.)"
brand: "simond store"
price: "€ 201.03"
currency: EUR
in_stock: true
reviews_count: 5
category: "Simond"
url: https://www.desertcart.es/products/436351267-colloidal-silica-rigidizer-2300f-rated-1-quart-40-oz-approx
store_origin: ES
region: Spain
---

# 24h normal curing time 2300°F high-temp resistance Superior thermal shock & erosion defense Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.)

**Brand:** simond store
**Price:** € 201.03
**Availability:** ✅ In Stock

## Summary

> 🔥 Fortify your forge with fireproof finesse!

## Quick Answers

- **What is this?** Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.) by simond store
- **How much does it cost?** € 201.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/436351267-colloidal-silica-rigidizer-2300f-rated-1-quart-40-oz-approx)

## Best For

- simond store enthusiasts

## Why This Product

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

## Key Features

- • **Rapid & Reliable Curing:** Standard 24-hour cure with optional heat acceleration keeps projects on schedule.
- • **Unmatched Heat Endurance:** Withstands blazing 2300°F for industrial-grade fireproofing.
- • **Multi-Industry Power Player:** From ceramic fiber to paper-making, boosts durability and anti-glue properties.
- • **Maximized Coverage Efficiency:** One quart protects up to 384 sq ft, optimizing material use and cost.
- • **Versatile Application Methods:** Spray, roll, dip, or brush for seamless integration into your workflow.

## Overview

Colloidal Silica Rigidizer is a high-performance thermal coating designed to enhance the strength and durability of fireproof materials. Rated for extreme temperatures up to 2300°F, it offers excellent thermal shock resistance and erosion protection. Easy to apply via spraying, rolling, dipping, or brushing, it cures in 24 hours and covers approximately 384 square feet per quart. Ideal for industrial furnaces, ceramic fiber insulation, and even paper-making applications, this rigidizer ensures long-lasting, high-temperature stability and superior surface hardness.

## Description

rigidizer for forge, rigidizer and refractory for forge, forge insulation, kaowool rigidizer, rigidizer for ceramic fiber, kaowool forge insulation, kao wool, refractory cement for forge. Rigidizer - Coating for Ceramic Fiber Blanket - 1 QuartWith Stand Temperature:2300° FahrenheitNormal Curing Time:24 Hours (Post application). Curing can be accelerated at high temperature.Shelf Life:6 Months from the date of opening the sealed cap, if immediately restored in the air tight container.Rigidizer for rigidizing ceramic fiber a.k.a. Ceramic Fiber Hardener, Ceramic Fiber Binding Agent, Ceramic Fiber Anti-Choking Agent, Ceramic Fiber Air Setting Agent, Hardening Agent, is used for increasing the surface hardness of any flexible thermal insulation or refractory product like ceramic fiber blanket. It can be easily applied by spraying, rolling, dipping, or brushing.It is a Refractory Coating for Ceramic Fiber used for increasing the surface hardness of any flexible thermal insulation or refractory product like ceramic fiber blanket. It can be easily applied by spraying, rolling, dipping, or brushing.

Review: Great - Worked as described and held up to the heat
Review: Seems to work - Used it in my little forge

## Features

- Rigidizer can be used as the cohesive agent for various fireproof materials, widely used in industrial furnace thermal technology equipment, and have high strength, stripping, volume stability of high temperature, high temperature resistance, thermal shock resistance, and good erosion performance
- High temperature stability, withstand temperatures up to 2300F
- Applied by spraying, rolling, dipping, or brushing, normal curing time 24 hours (Post Application)
- Rigidizer can be used in the paper-making industry. It can be used as the anti-glutinous agent of cellophane, pre-treatment agent of photographic paper, skidproof agent of cement bags, etc
- High velocity resistance, reduces hot gas erosion or flame impingement, Reduces airborne particles

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08FDDZDVQ |
| Best Sellers Rank | #1,463,947 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #67 in Firing Accessories |
| Brand | SIMOND STORE |
| Brand Name | SIMOND STORE |
| Country of Publication | USA |
| Coverage | Approximately 384 square feet (12 inches x 24 inches x 16 blankets, assuming 1 inch thickness and 1 quart covers 16 blankets) |
| Customer Reviews | 4.5 out of 5 stars 356 Reviews |
| Item Weight | 3.2 Pounds |
| Manufacturer | Spectra Overseas |
| Manufacturer Part Number | RCB-07 (731..) |
| Material | Colloidal Silica Compound |
| Material Type | Colloidal Silica Compound |
| Model Number | RCB-07 (731..) |
| Number of Items | 1 |
| Number of Packs | 1 |
| Recommended Uses For Product | Thermal insulation, fire resistance |
| Unit Count | 32 Fluid Ounces |

## Product Details

- **Brand:** SIMOND STORE
- **Manufacturer:** Spectra Overseas
- **Material:** Colloidal Silica Compound
- **Number of Packs:** 1
- **Recommended Uses For Product:** Thermal insulation, fire resistance

## Images

![Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.) - Image 1](https://m.media-amazon.com/images/I/71GUaPtXEWL.jpg)
![Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.) - Image 2](https://m.media-amazon.com/images/I/71vdmeq+eXL.jpg)
![Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.) - Image 3](https://m.media-amazon.com/images/I/8188yktoMBL.jpg)
![Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.) - Image 4](https://m.media-amazon.com/images/I/81v6KqpdImL.jpg)
![Colloidal Silica Rigidizer, 2300F Rated, 1 Quart (40 Oz Approx.) - Image 5](https://m.media-amazon.com/images/I/81x9wDu0I3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great
*by J***H on 3 July 2026*

Worked as described and held up to the heat

### ⭐⭐⭐⭐⭐ Seems to work
*by R***. on 4 February 2026*

Used it in my little forge

### ⭐⭐⭐⭐⭐ all good thanks
*by V***R on 10 March 2026*

all good thanks

## Frequently Bought Together

- Colloidal Silica Rigidizer - Coating for Refractory Ceramic Fiber Products - 1 Quart (40 Oz Approx.)
- Mr Volcano Refractory Satanite 4.5 Pounds for Ceramic Blanket Lining 3200 Degree Mortar
- Ceramic Fiber Insulation, 1" Thick x 16" x 48", 2400F Fireproof Insulation Blanket, 3026E

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**Shop now:** [https://www.desertcart.es/products/436351267-colloidal-silica-rigidizer-2300f-rated-1-quart-40-oz-approx](https://www.desertcart.es/products/436351267-colloidal-silica-rigidizer-2300f-rated-1-quart-40-oz-approx)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-09-03*