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REFRATECH

Rigidizer for Ceramic Fiber Coating, 2300F Rated, 16 Oz Rigidizer | Fireproof Insulation Surface Coating for Ceramic Fiber Blanket Boards Wool

  • Based on 242 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Aug 19
Order within 23 hours and 18 minutes
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Size: 16 Oz (Pack of 1)


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

Description

This rigidizer is a colloidal silica compound used for surface coating of ceramic fiber blankets exposed to high-velocity gases, and for surface treatment of ceramic fiber products to increase the surface hardness, resistance to erosion, and thermal shock resistance. When this rigidizer coating compound is applied to the surface of ceramic fiber products, it increases the surface hardness of ceramic fiber products such as blankets and boards. Also, it offers resistance to erosion and thermal shock. Ceramic fiber materials coated with rigidizer allow insulation to the high temperature up to 2300F and reflect more heat, thus improving the thermal efficiency of ceramic fiber material, giving you better results. because of its low viscosity, it can be applied to ceramic fiber material easily by brushing, spraying, or dipping. It takes around 24 hours of curing time post its application to ceramic fiber materials. This rigidizer when applied provides firmness and volume stability to the surface, preventing the particle to fall from the surface and reducing the spread of harmful airborne particles that may impact your health.

Brand: REFRATECH


Specific Uses For Product: Repair, Flooring, Masonry, Countertop, Casting, Wall Repair, Table Top Coating


Material: Colloidal Silica Compound


Item Form: Liquid


Special Feature: High Temperature Insulation, Hard Surface Finish, Erosion Resistance


Specific Uses For Product: Repair, Flooring, Masonry, Countertop, Casting, Wall Repair, Table Top Coating


Item Form: Liquid


Other Special Features of the Product: High Temperature Insulation, Hard Surface Finish, Erosion Resistance


Container Type: Bottle


Viscosity Level: Low


Full Cure Time: 24 hours


Water Resistance Level: Not Water Resistant


Compatible Material: Ceramic


Item Package Quantity: 1


Volume: 16 fluid ounces


Brand Name: REFRATECH


Model: RCB-12


Unit Count: 16 Ounce


Manufacturer: Spectra Overseas


Part Number: RCB-12


Material Type: Colloidal Silica Compound


Color: clear or transparent


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great product!!
Size: 16 Oz (Pack of 1)
Works great!
Reviewed in the United States on July 10, 2026 by Marc B.
    • Rigidizer is how we stay healthy
Size: 16 Oz (Pack of 2)
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. ... show more
Reviewed in the United States on July 2, 2026 by Thomas A.
    • Excellent and Reliable
Size: 16 Oz (Pack of 1)
Consistently reliable product. Works exactly as expected.
Reviewed in the United States on December 29, 2025 by Matthew Kowalski
    • Great for home forge efficiency and safety.
Size: 16 Oz (Pack of 1)
Slapped it in a spray bottle with a 1:1 ratio of water. Sprayed liberally and waiting 2 days for it to dry. Took me using 13psi down to maybe 7psi in my forge to reach temps while keeping the blanket together preventing me from breathing in fibers. Definitely a great product!
Reviewed in the United States on May 19, 2026 by John Johnson
    • Wear protective gear
Size: 16 Oz (Pack of 1)
Works really well at Harding. Definitely wear a face mask and gloves
Reviewed in the United States on July 1, 2025 by Brandon M
    • Gran producto
Size: 16 Oz (Pack of 1)
Buen producto pero lastima que mi horno vino defectuoso,por lo demas bien
Reviewed in the United States on July 14, 2026 by Nelson
    • Works as advertised
Size: 16 Oz (Pack of 1)
This product worked great to hardening my blanket for my forge ... one thing I would say is make sure you don't do half and half it will take forever for it to dry I placed my forge in the oven at 280 for about 2 hrs helped alot . I would do 3 parts solution to 1 part water it will go faster but it makes it harder to come out the spray bottle . ... show more
Reviewed in the United States on January 16, 2025 by Amazon Customer
    • Have proper protection
Size: 16 Oz (Pack of 1)
Works grate
Reviewed in the United States on December 3, 2025 by Cody Mower

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