#1  
Old 05-19-2011, 08:18 PM
Poops's Avatar
Serf
 
Join Date: Apr 2011
Location: South Australia
Posts: 14
Default Mortar Stains on Refractory Bricks

Hi All

So I'm about five courses high on my 40" (ish) dome including having completed the entry arch using refractory bricks http://www.fornobravo.com/forum/f44/...lia-15738.html (Materials in Adelaide South Australia) which are a creamy colour and homebrew mortar 3:1:1:1 sand, cement, lime and fireclay.
I have regrettably been somewhat slack in cleaning the excess mortar from the inside of the dome as it goes up. I've used a stiff brush to get the joints at least flush, but have some unslightly watery grey stains.

I'm looking for tips on how bext to clean this up. On normal red bricks I'd use some Hydrochloric acid, but wonder if this would be suitable with refractory bricks, and whether this would compromise the strength of the mortar?

Appreciate any feedback, or how others have approached this.

Thanks
__________________
------
Poops

Currently building first oven with red brick base
FB plans plus Russell Jeavons book
Reply With Quote
  #2  
Old 05-19-2011, 08:40 PM
Les's Avatar
Les Les is offline
Il Pizzaiolo
 
Join Date: Sep 2005
Location: Carson City, NV
Posts: 2,852
Default Re: Mortar Stains on Refractory Bricks

Muriatic acid will do the job. It's nasty stuff and given repeated applications, will probably compromise any brick. If it's just a stain on the inside - let it be.
JMO.
__________________
Check out my pictures here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


If at first you don't succeed... Skydiving isn't for you.

Last edited by Les; 05-20-2011 at 07:48 AM. Reason: spelling
Reply With Quote
  #3  
Old 05-19-2011, 09:07 PM
Tscarborough's Avatar
Il Pizzaiolo
 
Join Date: Oct 2009
Location: Ausitn
Posts: 3,114
Default Re: Mortar Stains on Refractory Bricks

It is an oven, not the facade on your house.

If you do feel the need, make sure that you get a 100% saturation on the brick before you apply a dilute muriatic acid solution.
Reply With Quote
  #4  
Old 05-19-2011, 09:54 PM
brickie in oz's Avatar
Il Pizzaiolo
 
Join Date: Mar 2009
Location: Whittlesea
Posts: 3,455
Default Re: Mortar Stains on Refractory Bricks

If the mortar is on the inside it will just flake off with the heat of the oven so dont worry about it.
By the time you have done the curing fires it will most likely be gone.
__________________
The English language was invented by people who couldnt spell.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Laying Thin Refractory Bricks on Hearth Leao Getting Started 6 05-13-2011 06:02 AM
Temperature on Outside of Refractory Bricks Leao Getting Started 11 05-12-2011 03:39 PM
Fireclay vs refractory mortar (for setting oven floor) Tenorio74 Finding Building Materials 12 01-06-2011 04:49 PM
Hardibacker to level floor bricks? Fireclay vs refractory mortar Roadkyng Pompeii Oven Construction 2 07-05-2009 03:16 AM
Fire Mortar vs. Refax Refractory Mortar southpaw Pompeii Oven Construction 4 04-07-2007 05:02 AM


All times are GMT -7. The time now is 07:47 PM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
2006/10 Forno Bravo, LLC