ceramic fibre ridgediser

Hello everybody, I am trying to find information about ceramic fibre ridgediser and if it works or how well it works?

Hi Scot;
While I have not used ridgedizer specifically.I have used waterglass. It did not holdup.
When we asked Matt walker, he thought it was not worth the $ for the end result you get.
I would say its use in a rocket stove would be very limited.
What were you thinking of using it for?

Thank you Thomas, I can think of lots of places to use it but obviously not if it doesn’t really work!
That might be the reason it is difficult to find any in depth reviews.
It just seems like a great resolve for many situations where fibre board would benefit from some protection.

It just sounds so useful!
I guess it is just sales talk and a bit expensive to experiment with!
https://www.vitcas.com/ceramic-fibre-rigidiser

What I was told, was it did harden ceramic board but the hardness layer was egg shell thin. Bump it and it cracks . Crack it and the next firing it falls off.
The literature was referring mainly to hot gasses.  In the places where we use cf board that have no chance of abrasion they literally last indefinitely.
In lets say a batch box or the feed tube of a J where abrasion is a daily occurrence it would not last long at all.

Sounds good , probably has a perfect use in refinery's or pulp mills but for rocket building it isn't quite right.  

Thomas, what about this stuff any good?
Cost £40 for a 3/8” 4x8’ sheet, so dead cheap!
Cheers Thomas....

Hey Scot;  Well I have not heard of that product before. It sounds like a construction fire break. Similar but better than sheet rock.
I could not find the correct specs on it. But if I had to guess I would say it is a no go.
Ceramic Fiber Board is built for constant industrial temperatures. Weeks of 2000 F+  gasses flowing by with no damage and with maximum insulating values.

You have not told us what you are wanting to build???

Thanks Thomas, I am sure you are right that it would not stand up to prolonged exposure to very high heat otherwise is would state so in the literature.
I did find something saying it could stand up to 2400c before  decomposing so I wondered if it might have some use maybe for making outer casing.
I mainly ask because I work on building sites and the boys are using it as fire protection on all the walls.
I have been building rocket stoves for many years but only metal ones with no insulation, they have been real fun and entertaining but I am collecting materials to build a proper insulated one.