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🔥 Fortify your fireproofing with next-level heat defense!
Colloidal Silica Rigidizer is a high-performance ceramic coating designed to reinforce refractory ceramic fiber products. It offers exceptional heat resistance up to 2300°F, thermal shock durability, and erosion protection. Easy to apply via multiple methods with a fast 24-hour cure, it also reduces airborne particles and extends insulation life. Ideal for industrial furnaces, paper-making, and skidproof applications, this 1-quart solution covers approximately 384 square feet, delivering professional-grade strength and stability.
| ASIN | B08FDDZDVQ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #45,523 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #27 in Firing Accessories |
| Color | White |
| 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 4.6 out of 5 stars (425) |
| Date First Available | August 7, 2020 |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item model number | RCB-07 (731..) |
| Manufacturer | Spectra Overseas |
| Material | Ceramic |
| Part Number | RCB-07 (731..) |
| Product Dimensions | 4 x 4 x 10 inches |
| Size | 1 Quart |
| Special Features | High temperature stability, high strength, resistance to thermal shock and erosion, high velocity resistance, reducing airborne particles |
| Usage | Industrial, Paper-making, Surface Treatment, Skidproof Surfaces |
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!
T**R
Works as advertised.
Works as stated in the description. I did a double saturation and it really firmed up the insulation very nicely. I would recommend this size for more than one small project and to maintain the rigidness of my original forge after several uses.
N**N
As advertised
Great colloidial silica sol for many purposes.
I**R
protect the insulation of the melting furnace
It soaks well and is durable when dry.
B**R
Good product
Only reason I didn’t give it a full 5* is because of drying time, works well, has good amount, just took days to dry for some reason
C**N
Satisfied with order
Works well to "fluff down" ceramic fibers. Can be brushed or sprayed on. Needs warm ventilation for a day to dry.
D**I
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.
C**.
Glad I found it
Working great
S**E
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
C**T
Dont water it down as much as they say too. Add a little bit of food colouring, it helps with application.
B**B
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
A**R
Used it to spray in the propane melting furnace it does what it says
T**N
Great
Trustpilot
2 weeks ago
5 days ago