Curing fire cement - temperature ?

Nov 13, 2013 4 Replies

I've having to re-build the baffle plate for my oil central heating boiler. The original plate was, I'm told, a fibre glass material and has broken u p. I've been given a sheet of one inch thick compressed vermiculite to bui ld a new one out of gluing it together with fire cement.



The instruction was to put it in the wood burning stove to bake the cement. Could I not do the 1st stage of baking in a controlled environment like t he domestic oven ?



Thanks Rob


It would be a very strange domestic cooker oven that got up to red heat!

ler. The original plate was, I'm told, a fibre glass material and has brok en up. I've been given a sheet of one inch thick compressed vermiculite to build a new one out of gluing it together with fire cement.

ent. Could I not do the 1st stage of baking in a controlled environment li ke the domestic oven ?

Smart a***d prat - does the flue pipe out of my wood burning stove go red-h ot ?

Rob

The instruction was to put it in the wood burning stove to bake the cement. Could I not do the 1st stage of baking in a controlled environment like the domestic oven ?

Thanks Rob

The first stage is slowly driving out any moisture present. If this is done too quickly there can be a steam "explosion" which can shatter the cement. How long this takes depends on how thick the fire cement is.

Once the moisture is driven out, firing can proceed. I wouldn't have thought fire cement would "glue" anything together.

Actually mine does, when it is cranked up. Only visible in a darkened room.

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