cracked

[Cypress]

I know that small cracks are ok but well






So I can see the light throught the crack so how to fix??

1. So do I fill the crack with mortar and go on
2. Do I crack out some more and then fill
3. I plan to put two layers of refractory cement for insulation do I just fill then with the cement?
thanks for any help....

[Les]

Originally Posted by Cypress

1. So do I fill the crack with mortar and go on
I plan to put two layers of refractory cement for insulation....

I have seen worse. Probably no point in adding mortar, it will just crack again. The blanket can cover a multitude of sins - I think you are safe to wrap and go. In regard to two more layers of cement for insulation - cement doesn't insulate, you need to use the blanket, vermiculite, etc...

Les...

[Cypress]

So last night I got it up to 1024 F and look what roared its ugly head...
There is smoke coming out of the crack should I worry or just cover and go on still??

[brickie in oz]

Hi.
The guy who held the course I did in WFO said to paint the crack with fire cement that has been watered down a little, as it drys almost instantly you paint on more, just keep brushing.

It gets to a point where the crack fills up, you may have to do a follow up on the next firing.