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🔥 Fortify your fireproofing with next-level thermal armor!
Colloidal Silica Rigidizer is a premium 2300°F-rated fireproof coating designed for industrial thermal insulation. Offering exceptional thermal shock resistance, high strength, and volume stability, it protects ceramic fiber blankets and other materials from heat, erosion, and particle damage. Easy to apply via multiple methods, it covers approximately 384 sq ft per quart, making it an efficient, versatile solution trusted across industries.
| ASIN | B08FDDZDVQ |
| Best Sellers Rank | #55,892 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #51 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 438 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 |
J**H
Great
Worked as described and held up to the heat
D**L
Easy Application
Worked very well for me! Easy to apply.
S**N
Super
Awesome! Used on propane system.
C**R
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!
A**S
It gets hard
Rigidizer did what it claimed to do, but didn’t go very far. I had to buy an additional bottle for a 2ft diameter x 2ft tall vessel, and still was shy. This can be DIY’ed with clear kitty litter and sodium hydroxide (lye) for 1/10th the cost.
J**H
Easy. Rock hard.
Used full strength and added some food coloring to see where it was going. Spread evenly and absorbed nice. Took a solid 24hrs and was still wet in some spots. Instructions said you could introduce heat to accelerate curing so I just fired up the furnace and melted a pot of brass. By the time it was done (30min) the walls were hard as a rock and dry as a bone. Love it.
N**N
As advertised
Great colloidial silica sol for many purposes.
P**L
Great seller fast ship no issues
have not used it yet but I'm glad I read about it. Use it on all kaowool furnace blanket items. they will last a lot longer.
S**E
Would of rated ZERO stars if i could. Really not satisfied!! Tap water would of done the same!!
Couldn’t use the product half of the container was full of crystal and half water didn’t do anything to my ceramic blanket could of just put water it would of done the same!!! Really not satisfied
R**.
Seems to work
Used it in my little forge
V**R
all good thanks
all good thanks
C**T
Exactly as advertised
Dont water it down as much as they say too. Add a little bit of food colouring, it helps with application.
B**B
Skeptical
Was a little skeptical because it came clear instead of the other rigidizers that are blue. But worked well and cured up in a day
Trustpilot
3 weeks ago
4 days ago