Forno Bravo Forum: The Wood-Fired Oven Community

Refractory mortar query

Filthymutt — Sun, 19 May 2013 14:26:44 GMT

Finally found a place that will sell in small quantity.

Can anyone tell if this stuff will be ok? Or is the Alumina content too high? I read that with firebrick if the alumina content is too high that meant the temps will get too high for pizza. But if I am using medium duty brick with high alumina mortar is it going to make a big difference?

refractory mortar for kiln and furnace

Min. Order: 1 Barrel

FOB Price: US $0.1-0.5 / Barrel
Place of Origin: CN;SHN ;
Al2O3 Content (%): 70% ;
Model Number: refractory mortar ;
Refractoriness (Degree): Common (1580�< Refractoriness< 1770�) Pretty sure that is in Celsius

Bob

weather seal

hungng — Sun, 19 May 2013 05:27:56 GMT

I need a sealant to put around where the flue connects to the entry to stop water getting in. What should I use?
There are plenty of sealants available out there but which one is able to handle very high temperatures.

Polishing concrete

david s — Sat, 18 May 2013 22:56:56 GMT

After my first attempt at grinding and polishing a concrete decorative arch using a 4" angle grinder and an orbital sander with wet and dry paper, I decided to lash out and purchase (Ebay), the correct machine. The first attempt turned out OK but took way too long. This machine makes the process way easier. The new machine is basically a 5" angle grinder with a water feed through the main shaft, variable speed control (a standard angle grinder is way too fast) and an electric safety cut out. It takes diamond pads that fit via velcro from 30 to 1500. I am extremely pleased with the results but still have to do the sealing and waxing. Big thanks to Stonecutter and Gulf for leading me onto this fascinating technique.Gulf and Stonecutters threads contain great details and pics.If looking for more info try "hand pressed concrete" or "concrete countertops"

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Thanks for the welcome

Wild Duck — Sat, 18 May 2013 01:57:46 GMT

Quote:

Originally Posted by brickie in oz (Post 152890)

Dont count on it.
Once you have given more advice to others than you have received you can start laying down the law.

Until then, pull ya head in. :D

Thanks for the Welcome :confused:

Seems like I have to be carefull who's toes I stand on :(

WD

Metal Fabrication Adelaide Area

billkidd — Sat, 18 May 2013 00:26:22 GMT

Hi, I would like to track down a metal fabricator in the Adelaide area (preferably the Hills) to make the front opening arch support. Do any of you other Adelaidians know a good one? Also What is Poorman's mortar?

Which insulation to use in insulated door

V-wiz — Fri, 17 May 2013 19:54:29 GMT

Im building/welding the insulated door tomorrow, i have both Cal-Sil boards and Ceramic fiber blankets. Both are left over and can use both. Which will insulate better?

Some facts. The Cal-sil board is rated up to 1,200F, the CF blanket is rated over 2,200F. The blanket can be packed tighter as it will compress.

What do you guys think? Thanks

Another thing I cannot find in China

Filthymutt — Fri, 17 May 2013 09:06:44 GMT

Ok, Hardibacker board. It's a brand name. Can someone give me a generic name? Because thus far I can not find Hardibacker in China nor a translation into Chinese (Mandarin).

Also, is it absolutely necessary? What's its purpose? It's not an insulator as that's on top of the concrete layer. Can I not just pour concrete on top of my plywood forms?

From the pictures in the plans the hardibacker seems to cover the holes in the cinder blocks, so why are we told to block them up with the empty cement bags?

Also, if you are pouring concrete atop the Hardibacker why do they tell you to use a release agent on plywood that is not after all in direct contact with the concrete you just poured?

Thanks,

Bob

Tile saw Needed or not?

Filthymutt — Fri, 17 May 2013 05:06:57 GMT

I'm seeing a lot of post talking about this HF Tile saw. Seen photos of it too, looks great but here in China where I am I can not find it's like anywhere. The best I can get is a 4" Marble cutter (mini circular saw) with a diamond blade. I've tried it on cinder block and it cuts fine but I am worried about when it comes to cutting my fire bricks that I won't be able to make such precise cuts as it looks like you can with that tile saw.

Do not even suggest please about renting one. This is China and things don't work that way here. There is no rental anything past cars and houses and rental cars are a fairly new thing...

So any ideas how I can cut my fire brick nicely?:confused:

New Guy

TJRad — Thu, 16 May 2013 23:06:11 GMT

Hello!

I have been researching the idea of building a pizza oven in my back yard and I came across your very impressive forum today. I wanted to see the links on the posts so here I am.

A little bit about me,

I am a general contractor but in no way, shape or form a mason. I do have limited masonry experience.

I am probably over confident in my skill set no matter what it is, but I love asking questions and prefer to only do things right and once. I do have a mason I work with on a regular basis, so the things that aren't oven specific I should do fine with.

I am thinking of building something much like the 32" Pompeii in Nor Cal that Boerwarrior is building, but I would like to build it on a deck and have some concerns about finished weight and how to keep that down. Hope to learn alot reading here and maybe even enough to be helpful in the discussion at some point. If nothing else maybe as a "what not to do" lol

Ty

Looking for WFO Supplies in Florida

gbcallaway — Thu, 16 May 2013 16:43:38 GMT

Hello All,

I live in Orlando, Fl and have been calling around trying to find the larger firebricks that a majority of the people on this forum are using for their build. I can only seem to find the 9x4x2-1/4. Plus, looking around for a retailer that carries Super Isol (calcium silicate insulating board). Trying to decide between vermiculite/concrete or just insulating board for under my cooking floor. People seem to be going with the insulating board.

So, could anyone provide some retailers in and around Orlando or in the State of Florida that carry the larger fire bricks and insulating board?

Thanks in advance!:D
Greg

Llopis oven

SCChris — Thu, 16 May 2013 15:33:57 GMT

Faith and Jay I don't know if you've seen these before but this is new to me. It's a wood burning white oven although it can run with other fuels, nicely insulated, revolving deck, and steam.. It's a European oven. Very interesting. I know Faith is thinking about a new oven..

I'm a bit uncomfortable including a link in respect to James but it searches easily.

Another baking link..

http://millersbakehouse.com/index.htm

The wood fire heats the steam tubes that then heat the oven.

Interesting..

Chris

out of work so turned into an old Greek yiayia

asimenia — Thu, 16 May 2013 13:09:08 GMT

As the title says - I'm out of work (apart from internet shop) thoroughly deep in debt (because of other people not us) so I have plenty of time to fire up the oven - I mostly forget to take pics until the food has gone - but hubby not back yet soooooo This is what I cooked this afternoon
Curried veg (courgettes, aubergines, etc etc)
Followed by pork and potatoes

I'm on the Harcombe diet - so I'm not allowed any carbs :( no pizza:eek:
I keep sneaking a glass of wine in though!:o

so this is the reason for the meat/veg dishes (potatoes are for the others)

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New Oven

trimmind — Thu, 16 May 2013 12:15:11 GMT

I have just received my new primavera 60, is it typical to have a large gap between the fire bricks on the floor

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Final Render Coat

Cookie Monster — Thu, 16 May 2013 03:18:24 GMT

Hey Guys,

Just wondering what is the best product to use and the final render coat on an exposed igloo style dome.

I was looking at this stuff to put over a sand cement render

Dulux AcraTex Elastomeric Shieldcoats

Any thoughts or is there another off the shelf product that would do a better job?

Bondcrete?

Thanks,

Matt

Unattended Non-Wood Pre-Heat Options

scott123 — Thu, 16 May 2013 03:14:33 GMT

I'm look for ways to pre-heat a WFO without wood.

The goal is to take it to 400-500F (hearth) either the day(s) before or a few hours before the event.

I'm familiar with the use of weed burners, but, I'm not sure I'd be comfortable turning a weed burner on and going to do something else/leaving the house. I'd like something that wouldn't need to be attended.

Any electric options come to mind?