High temperature filler

[Thrashsmith]

Hello, can anyone recommend a high temperature metal filler? It'd be for use on a fire pit to seal up a few spots that could be water traps & are in very awkward positions to weld.
The filler would need to be flexible as I have to transport the fire pits & they'd obviously vibrate on the trailer.
Thank you in advance.

 

[voipio]

How high temperature is high? Are the spots in question in contact with the fire itself? Hight temperature flexible fillers don't really cope well above about 340degC. Fire cements will stand higher temperatures, but they're not flexible, and not particularly good at sealing against water ingress. How about drilling drain holes in the parts concerned?

 

[Thrashsmith]

How high temperature is high? Are the spots in question in contact with the fire itself? Hight temperature flexible fillers don't really cope well above about 340degC. Fire cements will stand higher temperatures, but they're not flexible, and not particularly good at sealing against water ingress. How about drilling drain holes in the parts concerned?

The spots where the filler would be are about 100 - 150mm below where the logs will be, and the logs will be on plate steel either 6 or 8mm thick. At the mo I don't really know how how the fire will be

 

[Thrashsmith]

How high temperature is high? Are the spots in question in contact with the fire itself? Hight temperature flexible fillers don't really cope well above about 340degC. Fire cements will stand higher temperatures, but they're not flexible, and not particularly good at sealing against water ingress. How about drilling drain holes in the parts concerned?

How big do you think a drainage hole needs to be?

 

[voipio]

3mm diameter should be plenty for a drain hole, placed as low as possible in the part concerned.

 

[tom2207]

line the pit with a few off cuts of steel ,,, then some sand , put the fire on a grate and it will last a lot longer too.
few holes wont matter at all