---
product_id: 465228023
title: "Rigidizer for Ceramic Fiber Coating, 2300F Rated, 16 Oz Rigidizer | Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool"
brand: "refratech"
price: "290 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Refratech"
url: https://www.desertcart.ro/products/465228023-rigidizer-for-ceramic-fiber-coating-2300f-rated-16-oz-rigidizer
store_origin: RO
region: Romania
---

# Erosion resistance vs high-velocity gases 2300°F heat resistance Hard surface abrasion defense Rigidizer for Ceramic Fiber Coating, 2300F Rated, 16 Oz Rigidizer | Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool

**Brand:** refratech
**Price:** 290 Lei
**Availability:** ✅ In Stock

## Summary

> 🔥 Fortify your fireproofing with next-level ceramic fiber protection!

## Quick Answers

- **What is this?** Rigidizer for Ceramic Fiber Coating, 2300F Rated, 16 Oz Rigidizer | Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool by refratech
- **How much does it cost?** 290 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/465228023-rigidizer-for-ceramic-fiber-coating-2300f-rated-16-oz-rigidizer)

## Best For

- refratech enthusiasts

## Why This Product

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

## Key Features

- • **Durable Surface Armor:** Transforms fragile ceramic fibers into abrasion-resistant, long-lasting surfaces that defy wear and tear.
- • **Precision Curing Time:** Fully cures in 24 hours, ensuring rapid turnaround without compromising performance.
- • **Streamlined Application:** Low viscosity formula allows effortless brushing, spraying, or dipping—perfect for busy pros.
- • **Unmatched Heat Shielding:** Withstands extreme temperatures up to 2300°F, protecting your ceramic fiber insulation like a pro.
- • **Versatile Industry Standard:** Trusted across forges, kilns, ovens, and foundries—your go-to for high-temp insulation reinforcement.

## Overview

REFRATECH Rigidizer is a 16 oz colloidal silica liquid coating designed to enhance ceramic fiber insulation by providing high temperature resistance up to 2300°F, a hard abrasion-resistant surface, and improved erosion resistance against high-velocity gases. Its low viscosity enables easy application via brushing, spraying, or dipping, curing fully within 24 hours. Widely used in industrial settings like forges, kilns, and furnaces, it ensures durable, long-lasting insulation performance.

## Description

Buy REFRATECH Rigidizer for Ceramic Fiber Coating, 2300F Rated, 16 Oz Rigidizer | Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool: Exhaust Coatings - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great product!! - Works great!
Review: Rigidizer is how we stay healthy - This material is very much akin to a milk consistency, though clear. In order to make sure you have adequate coverage buy more than 2 bottles. I bought 4. They say it covers well but for my own peace of mind I would prefer to apply a fairly generous coating for permeation of the fibrous material. Will take pictures and post an updated review after the first firing of the kiln. I have read suggestions such as applying a dye to the liquid to make sure you know what you have covered. I recommend that. As it is clear and once applied to ceramic wool fiber, you can't tell what has and has not been covered.

## Features

- HIGH TEMPERATURE INSULATION - This coating increases the insulation value of ceramic fiber materials and can with stand temperature up to 2300F
- HARD SURFACE FINISH - Rigidizer makes the surface finish after application with increase resistance to mechanical abrasion and helps flexible ceramic fiber material from being too flaky
- EROSION RESISTANCE - Rigidizer increases surface erosion resistance for surfaces exposed to high velocity gases
- EASY TO APPLY - Because of it low viscosity its application on ceramic fiber materials becomes very simple. It can be applied with brushing, spraying or dipping. It takes around 24 hours for curing post application. (Don't keep the lid open when not in use for better preservation as it starts freezing when it comes in contact with air)
- WIDE APPLICATION - This rigidizer is extensivly used in varied fields for surface coating of ceramic fiber insulation used in Forges, Foundry, Furnace, Stove, Oven, Raku, Kiln and many more

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B84XT8VN |
| Best Sellers Rank | #45,777 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #32 in Firing Accessories |
| Brand | REFRATECH |
| Brand Name | REFRATECH |
| Color | clear or transparent |
| Compatible Material | Ceramic |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 242 Reviews |
| Full Cure Time | 24 hours |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Manufacturer | Spectra Overseas |
| Material | Colloidal Silica Compound |
| Material Type | Colloidal Silica Compound |
| Model | RCB-12 |
| Other Special Features of the Product | High Temperature Insulation, Hard Surface Finish, Erosion Resistance |
| Part Number | RCB-12 |
| Special Feature | High Temperature Insulation, Hard Surface Finish, Erosion Resistance |
| Specific Uses For Product | Repair, Flooring, Masonry, Countertop, Casting, Wall Repair, Table Top Coating |
| Unit Count | 16 Ounce |
| Viscosity Level | Low |
| Volume | 16 fluid ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** REFRATECH
- **Item Form:** Liquid
- **Material:** Colloidal Silica Compound
- **Special Feature:** High Temperature Insulation, Hard Surface Finish, Erosion Resistance
- **Specific Uses For Product:** Repair, Flooring, Masonry, Countertop, Casting, Wall Repair, Table Top Coating

## Images

![Rigidizer for Ceramic Fiber Coating, 2300F Rated, 16 Oz Rigidizer | Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool - Image 1](https://m.media-amazon.com/images/I/71hLRDM3rpL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this adhere to steel?**
A: No

**Q: Can this be sprayed on the inside of a woodstove in place of fire brick?**
A: Yes

**Q: How much will this 16Oz bottle coat?**
A: I had it for a whole 24"x 156" roll.  Probably needed two bottles for that.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!!
*by M***. on July 10, 2026*

Works great!

### ⭐⭐⭐⭐⭐ Rigidizer is how we stay healthy
*by T***. on July 2, 2026*

This material is very much akin to a milk consistency, though clear. In order to make sure you have adequate coverage buy more than 2 bottles. I bought 4. They say it covers well but for my own peace of mind I would prefer to apply a fairly generous coating for permeation of the fibrous material. Will take pictures and post an updated review after the first firing of the kiln. I have read suggestions such as applying a dye to the liquid to make sure you know what you have covered. I recommend that. As it is clear and once applied to ceramic wool fiber, you can't tell what has and has not been covered.

### ⭐⭐⭐⭐⭐ Excellent and Reliable
*by M***I on December 29, 2025*

Consistently reliable product. Works exactly as expected.

## Frequently Bought Together

- REFRATECH Rigidizer for Ceramic Fiber Coating, 2300F Rated, Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool – 16 Oz Rigidizer
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-07-31*