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Removing soot stains from fireplace mantle

Posted on 11/26/23 at 4:31 pm
Posted by ChewyDante
Member since Jan 2007
16916 posts
Posted on 11/26/23 at 4:31 pm
We burned some wood last night in our fireplace that was not fully dry and it produced an enormous amount of smoke that stained our exterior fireplace tile and the wood on the bottom portion of our painted mantle. I was able to get a decent amount out of the tile with dish soap and will try and use some degreaser to complete the tile cleaning but the painted mantle does not budge with the dish soap.

Any recommendations for best method to effectively remove the soot stains from the mantle without destroying the finish?

See picture below:
Posted by weadjust
Member since Aug 2012
15089 posts
Posted on 11/26/23 at 6:12 pm to
Search Amazon for a Smoke Soot Eraser. Its a dry sponge made for fire damage clean up
Posted by gumbo2176
Member since May 2018
15043 posts
Posted on 11/27/23 at 11:12 am to
I'd give TSP mixed in hot water a try.

Home Depot or Lowes have it in the paint section and it goes by the name Tri Sodium Phosphate in case you didn't know that already.

If you have tender skin on your hands, buy some rubber gloves.


Edited to add this: I've used TSP to wipe down ceilings in kitchens back in the day when most were painted with oil base high gloss paint.

I used it in one of my aunt's kitchens and both she and my uncle were heavy smokers and did so in their house. There was a HUGE difference in the color of the ceiling where it was wiped down with TSP and damn near white again as opposed to the yellow everywhere else.
This post was edited on 11/27/23 at 11:47 am
Posted by SuwMwf
Member since Jul 2012
946 posts
Posted on 11/28/23 at 9:23 am to
Have had similar issues. Oddly our mantle and fireplace look similar. I made a solution using warm water, LAs totally awesome and dawn. Scrubbed with a sponge until clean. It got almost everything off the marble tiles and grout, but eventually we just went ahead and repainted the mantle. Ours gets dingy with months of use instead of just one.
Posted by JumpingTheShark
America
Member since Nov 2012
22892 posts
Posted on 11/29/23 at 8:12 am to
My go to is Mr clean magic erasers
Posted by jmorr34
Baton Rouge
Member since Sep 2004
2877 posts
Posted on 11/29/23 at 9:12 am to
quote:

My go to is Mr clean magic erasers

This
Posted by LSUTIGERTAILG8ER
Chance of Rain....NEVER!!
Member since Nov 2007
1743 posts
Posted on 11/29/23 at 10:14 am to
if all else fails, repaint?
Posted by tigerfoot
Alexandria
Member since Sep 2006
56209 posts
Posted on 11/29/23 at 3:07 pm to
Magic erasers work for all kinds of crap
Posted by ChewyDante
Member since Jan 2007
16916 posts
Posted on 2/21/24 at 11:41 am to
Bumping this to say that I definitely have to repaint. I tried a dry cleaning soot sponge and it did absolutely nothing. I ended up using it on the inside of my fireplace where it actually did work.

I bought some Mr Clean Magic Erasers and used a dish soap/warm water mixture. With an enormous amount of elbow grease this did lift a good portion of the soot along with the gloss off of the paint. And the erasers shredded pretty quickly. I also could not get into the small spaces between pattern whatsoever. In any case, it did not fully remove the soot and there are some spots where the stains appear to be embedded.

So I will definitely need to repaint. I have researched and determined that painting over soot is considered a no-no. So my new question becomes, what kind of prep work do I need to do on this job before applying the paint? I have already scrubbed a fair deal, enough to remove the paint gloss. I plan on maybe using some baking soda, dish soap, and warm water with a brush to go over everything again, focusing on the spots that still have the worst stains remaining. Anything else I should do prior to applying the paint?
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