On 16/04/2017 07:37, The Natural Philosopher wrote:
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.
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
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 the
y were covering over mortar stains and imperfections in the stonework. A lo
t depends on what type of paint was used originally gloss for instance woul
d need to be removed whilst most masonry paints could probably be over pain
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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