How to get paint off concrete lintels?

[Bill Wright]

Blowtorch? Hot air gun? Chemicals?

Bill

[The Natural Philosopher]

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.

[RJH]

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

[Capitol]

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.

[Brian Gaff]

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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[Harry Bloomfield]

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.

[Brian Gaff]

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

Brian

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"Harry Bloomfield" <harry...@NOSPAM.tiscali.co.uk> wrote in message
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[tabb...@gmail.com]

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

[Tricky Dicky]

>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

[Bill Wright]

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

[critcher]

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.

[Brian Gaff]

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" <wrights...@f2s.com> wrote in message

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[Bill Wright]

Good info!

Bill

[John Rumm]

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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[John Rumm]

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.

[Harry Bloomfield]

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

[ARW]

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


--
Adam