---
product_id: 233387072
title: "Colloidal Silica Rigidizer - Coating for Refractory Ceramic Fiber Products - 1 Quart (40 Oz Approx.)"
brand: "simond store"
price: "378.45 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Simond Store"
url: https://www.desertcart.tn/products/233387072-colloidal-silica-rigidizer-coating-for-refractory-ceramic-fiber-products-1
store_origin: TN
region: Tunisia
---

# Covers 384 sq ft per quart for max efficiency Withstands up to 2300°F high heat Exceptional thermal shock & erosion resistance Colloidal Silica Rigidizer - Coating for Refractory Ceramic Fiber Products - 1 Quart (40 Oz Approx.)

**Brand:** simond store
**Price:** 378.45 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Fortify your fireproofing with next-level thermal armor!

## Quick Answers

- **What is this?** Colloidal Silica Rigidizer - Coating for Refractory Ceramic Fiber Products - 1 Quart (40 Oz Approx.) by simond store
- **How much does it cost?** 378.45 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/233387072-colloidal-silica-rigidizer-coating-for-refractory-ceramic-fiber-products-1)

## 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

- • **Erosion & Particle Defense:** High velocity resistance reduces hot gas erosion and airborne particles, keeping your environment cleaner and safer.
- • **Industrial-Grade Heat Shield:** Protect your refractory fibers with a coating that endures blazing 2300°F temperatures without cracking or peeling.
- • **Multi-Application Versatility:** Spray, roll, dip, or brush on – perfect for furnaces, paper-making, and skidproofing cement bags.
- • **Efficient Coverage, Maximum Value:** One quart treats up to 16 blankets (384 sq ft), optimizing your investment with broad, uniform protection.
- • **Long-Lasting Structural Integrity:** Boosts strength and volume stability under extreme thermal stress, ensuring your materials stay intact and reliable.

## Overview

Spectra Overseas’ Colloidal Silica Rigidizer is a high-performance ceramic coating designed for refractory fiber products, delivering superior heat resistance up to 2300°F, exceptional thermal shock and erosion protection, and versatile application methods. Ideal for industrial furnaces and paper-making, it enhances material strength and stability while reducing airborne particles, covering approximately 384 square feet per quart.

## Description

Simond Store is dedicated to providing customers with a convenient and comfortable experience. Quality and the fastest delivery are the key aspects of our business. Our goal is to conserve energy by supplying high-quality insulation products. Simond Store is a well-known brand that has extensive experience and expertise in refractory products. We've gained a large number of satisfied customers in the USA. Simond Store is dedicated to providing customers with a convenient and comfortable experience. Quality and the fastest delivery are the key aspects of our business. Our goal is to conserve energy by supplying high-quality insulation products. Simond Store is a well-known brand that has extensive experience and expertise in refractory products. We've gained a large number of satisfied customers in the USA. Ceramic Fiber Insulation High Temperature Insulation

Review: It works well and is worth every penny - This stuff really works well. I did a couple of coats an still had a bunch left over. It really does help to lock in the foam. It dried very fast. I would 100% buy again but I won't have to because I still have a bunch. Great deal. Great heat retention. Easy to apply. Really toughens the foam, and it comes in a big bottle!
Review: Easy to use and gets the job done - I was able to apply most of it with a handheld trigger sprayer, although after a while it became more difficult to spray down the kaowool. For some reason the solution wasn't shooting out of the nozzle as it was at first. The trigger sprayer was still able to work with plain water so no doubt it was whatever is suspended in the collodiial solution that might have affected the sprayer. The solution gave the kaowool a somewhat solid surface. It's actually more like crusted toast. The rest of it is still a bit springy, but the refractory wool isn't intended to act as any kind of structure. Most important is that the surface isn't fluffy and loose.

## 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 | #81,183 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #83 in Firing Accessories |
| Brand | SIMOND STORE |
| Brand Name | SIMOND STORE |
| 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 | 4.6 out of 5 stars 433 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
- **Recommended Uses For Product:** Thermal insulation, fire resistance

## Images

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

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works well and is worth every penny
*by C***R on October 4, 2025*

This stuff really works well. I did a couple of coats an still had a bunch left over. It really does help to lock in the foam. It dried very fast. I would 100% buy again but I won't have to because I still have a bunch. Great deal. Great heat retention. Easy to apply. Really toughens the foam, and it comes in a big bottle!

### ⭐⭐⭐⭐⭐ Easy to use and gets the job done
*by D***I on April 24, 2023*

I was able to apply most of it with a handheld trigger sprayer, although after a while it became more difficult to spray down the kaowool. For some reason the solution wasn't shooting out of the nozzle as it was at first. The trigger sprayer was still able to work with plain water so no doubt it was whatever is suspended in the collodiial solution that might have affected the sprayer. The solution gave the kaowool a somewhat solid surface. It's actually more like crusted toast. The rest of it is still a bit springy, but the refractory wool isn't intended to act as any kind of structure. Most important is that the surface isn't fluffy and loose.

### ⭐⭐⭐⭐⭐ As advertised
*by N***N on January 7, 2026*

Great colloidial silica sol for many purposes.

## 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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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-03*