Premixed Motar???

[rminkema]

I am building a 36" oven. I have located a local source for firebrick and many of the supplies. They suggested "SD Fireclay AirSet Mortar, Wet, in 55# pails" if the oven is not outside. My oven is enclosed in a pool kitchen. The other option presented was "Flue-Set Mortar 50# bag, dry, chemical set 2200 F". I need the advise of the wise.

Thanks,

Bob

[jeeppiper]

Re: Premixed Motar???

Bob:
Premixed will probably cost a lot. I think most folks here create their own mortar mixture. The mixture I used was the one used in the plans, consisting of:
1x - fireclay,
1x Cement,
1x lime,
3x sand.

It has worked fine for me.

[Campmaki]

Re: Premixed Motar???

I am building a 36" oven. I have located a local source for firebrick and many of the supplies. They suggested "SD Fireclay AirSet Mortar, Wet, in 55# pails" if the oven is not outside. My oven is enclosed in a pool kitchen. The other option presented was "Flue-Set Mortar 50# bag, dry, chemical set 2200 F". I need the advise of the wise.

Thanks,

Bob

Bob, I have gone round and round with the same question. I have decided to also go the home brew method, like many others. If you have not found fire clay contact Continental Clay in Minnesota. The person I spoke with knew exactly what I was looking for and asked if it was an oven based on Forno Bravos plans. He was very helpful. Their number is 800 432 2529. Four 50# bags of Hawthorn 35 mesh clay and a 1 pint bottle of sodium silicate additive cost me around 100 bucks with shipping to Wisconsin. The sodium silicate makes the homebrew exactly the same as premixed refractory mortar. It gives it extended life to work with and thru the curing process makes it rock hard. Hope this helps you, and as always GO PACK GO!!!!!! wAYNE

[Les]

Re: Premixed Motar???

Bob, I've been on this forum for a few years and I have seen a lot of complaints about the wet mortar. Just run with the home brew, it will save you money and it does work. I am at 5 or 6 years with zero issues.

[rminkema]

Re: Premixed Motar???

Thanks for all the great suggestion, Home Brew it is!!

[wotavidone]

Re: Premixed Motar???

Bob, I have gone round and round with the same question. I have decided to also go the home brew method, like many others. If you have not found fire clay contact Continental Clay in Minnesota. The person I spoke with knew exactly what I was looking for and asked if it was an oven based on Forno Bravos plans. He was very helpful. Their number is 800 432 2529. Four 50# bags of Hawthorn 35 mesh clay and a 1 pint bottle of sodium silicate additive cost me around 100 bucks with shipping to Wisconsin. The sodium silicate makes the homebrew exactly the same as premixed refractory mortar. It gives it extended life to work with and thru the curing process makes it rock hard. Hope this helps you, and as always GO PACK GO!!!!!! wAYNE

Wayne, I've always thought the sodium silicate would be very useful.
Can you tell us what rate you put it in the mix at please?

[Campmaki]

Re: Premixed Motar???

The correct amount of sodium silicate is actually very small. For every 50#s of fire clay, you use a quarter cup.

[NCMan]

Re: Premixed Motar???

I was at my local brickyard the other day and just for the fun of it, I asked the gal if they carried Heat Stop and if so, how much? She said "$110.00 for 50 lbs". Then said "we don't sell much of it, so it'd need to be ordered". We both clearly saw why they "don't sell much of it". I think I'll be going the home brew route, also.

[wotavidone]

Re: Premixed Motar???

The correct amount of sodium silicate is actually very small. For every 50#s of fire clay, you use a quarter cup.

Wow, that is a very small amount if you are making 3:1:1:1 home brew in small batches.