Blowtorch? Hot air gun? Chemicals?

Bill

On 16/04/17 02:52, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill
bead blasting
or sand blasting


--
Microsoft : the best reason to go to Linux that ever existed.

On 16/04/2017 07:37, The Natural Philosopher wrote:
On 16/04/17 02:52, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill
bead blasting
or sand blasting


Which will work well - but create quite a bit of mess and possibly
damage the the frames and pointing (IME of sandblasting).

Also, IME, it would cost a fair bit for a small area. I had asked for a
trial run on a whole house front - total cost £600, trial area £200.
Might be worth it if you're having several done - paint removal is not
one of life's pleasures.

As to an alternative - dunno! I'd be interested too.


--
Cheers, Rob

Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill

Wickes paint stripper. Probably a couple of goes and lots of rinsing
with the application of a wire brush. Been tempted by a sandblasting gun
for the compressor, but haven;t used one yet.

Bits of paint or the whole thing painted?
Sandblasting works quite well but I doubt you want th4e Sahara desert in
the workshop.
Brian

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"Bill Wright" wrote in message
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Blowtorch? Hot air gun? Chemicals?

Bill

on 16/04/2017, Bill Wright supposed :
Blowtorch? Hot air gun? Chemicals?

Bill

I had paint and sealant marks on the bricks where painted wooden
windows frames had been replaced with double glazing. I managed to
remove most of it with a cup wire brush on an angle grinder. It left
some steel abraded from the brush, on the brick work, but that soon
disappeared.

I suppose one could paint it concrete colour so nobody would notice.
Brian

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"Harry Bloomfield" wrote in message
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on 16/04/2017, Bill Wright supposed :
Blowtorch? Hot air gun? Chemicals?

Bill

I had paint and sealant marks on the bricks where painted wooden windows
frames had been replaced with double glazing. I managed to remove most of
it with a cup wire brush on an angle grinder. It left some steel abraded
from the brush, on the brick work, but that soon disappeared.

On Sunday, 16 April 2017 02:52:08 UTC+1, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill

Just leave it, the paint will drop off in time. If you can cope with it looking rough meanwhile.


NT

I suppose one could paint it concrete colour so nobody would notice.
Brian

Seen that done recently, I watched some painters rollering the pillars and portico on some of the recently built houses on a new build. Apparently they were covering over mortar stains and imperfections in the stonework. A lot depends on what type of paint was used originally gloss for instance would need to be removed whilst most masonry paints could probably be over painted.

Richard

On 16/04/2017 12:03, wrote:
On Sunday, 16 April 2017 02:52:08 UTC+1, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill

Just leave it, the paint will drop off in time. If you can cope with it looking rough meanwhile.

I've been waiting 30 years! Yes, it is dropping off, but much too
slowly. I can get some of it off with a pressure washer!

Bill

On 16/04/2017 02:52, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill


surprised no one told you not to use blow torch, concrete really
explodes with a very hot heat source.

Yes its the pores in the concrete you find it stuck in which is how
sandblassting works well, as it removeds a bit of the surface as well.

Brian

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"Bill Wright" wrote in message
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On 16/04/2017 12:03, wrote:
On Sunday, 16 April 2017 02:52:08 UTC+1, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill

Just leave it, the paint will drop off in time. If you can cope with it
looking rough meanwhile.

I've been waiting 30 years! Yes, it is dropping off, but much too slowly.
I can get some of it off with a pressure washer!

Bill

On 16/04/2017 14:19, critcher wrote:
On 16/04/2017 02:52, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill


surprised no one told you not to use blow torch, concrete really
explodes with a very hot heat source.

Good info!

Bill

On 16/04/2017 02:52, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Much depends on the type of paint and how you want the finish on the
concrete to look once done. A brass wire cup brush on an angles grinder
is gentler than you might expect and good for getting stuff off less
than perfect surfaces.

If you have access to a compressor, then you can get small hand held
grit blasting guns. They are somewhat slower and less aggressive than
you might expect though.


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Cheers,

John.

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On 16/04/2017 17:17, John Rumm wrote:
On 16/04/2017 02:52, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Much depends on the type of paint and how you want the finish on the
concrete to look once done. A brass wire cup brush on an angles grinder
is gentler than you might expect and good for getting stuff off less
than perfect surfaces.

If you have access to a compressor, then you can get small hand held
grit blasting guns. They are somewhat slower and less aggressive than
you might expect though.

Should have also added a needle "scaler" type pneumatic tool may also
work well.


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Cheers,

John.

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| Internode Ltd - http://www.internode.co.uk |
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| John Rumm - john(at)internode(dot)co(dot)uk |
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John Rumm was thinking very hard :
Much depends on the type of paint and how you want the finish on the concrete
to look once done. A brass wire cup brush on an angles grinder is gentler
than you might expect and good for getting stuff off less than perfect
surfaces.

+1

On 16/04/2017 13:29, Bill Wright wrote:
On 16/04/2017 12:03, wrote:
On Sunday, 16 April 2017 02:52:08 UTC+1, Bill Wright wrote:
Blowtorch? Hot air gun? Chemicals?

Bill

Just leave it, the paint will drop off in time. If you can cope with
it looking rough meanwhile.

I've been waiting 30 years! Yes, it is dropping off, but much too
slowly. I can get some of it off with a pressure washer!

Repaint it with concrete coloured paint and don't tell anyone:-)


--
Adam