If you were Registered and logged in, you could reply and use other advanced thread options
|
Posted by on March 30, 2007, 5:18 pm
Hi! I have a brick wall that has old roofing tar on it. What is the
best way to remove it? I thought of heating it and scraping off and
then treating the remainder with some sort of chemicals. Will a
roofing torch and/or chemicals do the work? If so, what kind of
chemicals do I need? Any advice is appreciated!
|
| |
Posted by Goedjn on March 30, 2007, 5:41 pm
On 30 Mar 2007 14:18:38 -0700, dingodog_1979@yahoo.com wrote:
>Hi! I have a brick wall that has old roofing tar on it. What is the
>best way to remove it? I thought of heating it and scraping off and
>then treating the remainder with some sort of chemicals. Will a
>roofing torch and/or chemicals do the work? If so, what kind of
>chemicals do I need? Any advice is appreciated!
The short answer is, once you stain a brick, you'll never
get it back the way it was. You can probably get whatever's
stuck to it off, at least mostly, but it's still not going to
look like the rest of the wall. That said:
Remove as much as you can mechanically, without damaging the
surface of the brick. Before you start to use chemical solvents,
saturate the brick with as much water as it will take, to limit
how much solvent/stain wicks deeper into the brick.
I don't think fire is a good technique for cosmetic cleaning of
brick, but maybe....
Before you start using fire on the surface, dry the brick completely,
else it's likely to explode. (although, replacing the brick
will likely solve the stain problem....)
http://www.bia.org/html/faqs.html#General
--Goedjn
|
|
Posted by Lawrence on March 30, 2007, 6:18 pm
On Mar 30, 4:18 pm, dingodog_1...@yahoo.com wrote:
> Hi! I have a brick wall that has old roofing tar on it. What is the
> best way to remove it? I thought of heating it and scraping off and
> then treating the remainder with some sort of chemicals. Will a
> roofing torch and/or chemicals do the work? If so, what kind of
> chemicals do I need? Any advice is appreciated!
I have used acetone in this situation but I don't reccommend it to
anyone else since it is quite dangerous. All skin must be covered.
Goggles for the eyes are a must. A respirator is also recommended.
|
|
Posted by John Gilmer on March 31, 2007, 4:06 am
> I have used acetone in this situation but I don't reccommend it to
> anyone else since it is quite dangerous. All skin must be covered.
> Goggles for the eyes are a must. A respirator is also recommended.
>
Acetone is relatively harmless. (It's used in nail polish remover, for
example.) Unfortunately, it's not that useful. The human body produced
tiny amounts of acetone and the body can "handle" small amounts.
Benzene is THE solvent for "tar." But Benzene causes cancer. Benzene
seems harmless but isn't. An organic vapor mask is ESSENTIAL.
MEK might work. Skin protection is a good idea when using MEK. Ditto for
the organic vapor mask.
|
|
Posted by Tom on March 30, 2007, 8:43 pm
Although not the most effective solvent, mineral spirits will dissolve tar,
and it is probably about the safest you could use. It's still flammable,
but has a relatively high flash point. Let it soak for awhile and use a
brass brush. You could enhance the solvancy by adding a little toluene (aka
toluol), but toluene is less benign. Make sure there is plenty of
ventilation and keep flames away.
Paint stripper will work too.
I once stripped a brick fireplace that had been painted. It's a matter of
lots and lots of applications and dilutions, and it never got completely
clean, but it turned out okay.
> Hi! I have a brick wall that has old roofing tar on it. What is the
> best way to remove it? I thought of heating it and scraping off and
> then treating the remainder with some sort of chemicals. Will a
> roofing torch and/or chemicals do the work? If so, what kind of
> chemicals do I need? Any advice is appreciated!
>
|
Page 1 of 2 1 2 > last >>
| Similar Threads | Posted | | How to remove paint from brick? | July 29, 2005, 9:53 am |
| Remove concrete from brick | August 4, 2006, 1:19 am |
| How does one remove spray paint from brick and cement | August 25, 2006, 11:15 am |
| How to remove a brick facade from a tile fireplace? | April 29, 2007, 9:58 pm |
| How to remove brick from patio to correct unenveness? | May 10, 2007, 10:47 pm |
| How to remove roofing nails from below? | June 6, 2007, 1:29 pm |
| wiring up a brick wall | June 20, 2005, 11:00 am |
| brick wall support | July 7, 2005, 9:45 pm |
| 1/4" brick over wall in kitchen | July 29, 2006, 9:57 pm |
| Window replacement in structural brick wall | July 31, 2005, 5:10 pm |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap