Brick wall painting.
Ian Stirling
Can anyone see any fundamental problems with wetting an area of wall
down for a couple of hours, followed by applying white portland cement to
it, with a roller?
It's unheated, so not really warm.
Or have I gone barking mad.
Rod Hewitt
news:5Dq5c.23411$Y%6.22...@wards.force9.net:
And I had visions of The Last Supper!
Rod
Andy Hall
I would have thought that a good exterior paint would have been a
better bet.....
.andy
To email, substitute .nospam with .gl
Ian Stirling
Probably.
I have the cement, it's "free", and don't have the paint.
Andy Hall
<ro...@mauve.demon.co.uk> wrote:
>Andy Hall <an...@hall.nospam> wrote:
>> On Mon, 15 Mar 2004 23:03:29 GMT, Ian Stirling
>> <ro...@mauve.demon.co.uk> wrote:
>>
>>>I wish to paint the interior of a garage, in order to lighten it up a bit.
>>>Can anyone see any fundamental problems with wetting an area of wall
>>>down for a couple of hours, followed by applying white portland cement to
>>>it, with a roller?
>>>It's unheated, so not really warm.
>>>Or have I gone barking mad.
>>
>>
>> I would have thought that a good exterior paint would have been a
>> better bet.....
>
>Probably.
>I have the cement, it's "free", and don't have the paint.
Hmm. OK. Good luck......
Ian Stirling
> On Mon, 15 Mar 2004 23:20:22 GMT, Ian Stirling
> <ro...@mauve.demon.co.uk> wrote:
>
>>Andy Hall <an...@hall.nospam> wrote:
>>> On Mon, 15 Mar 2004 23:03:29 GMT, Ian Stirling
>>> <ro...@mauve.demon.co.uk> wrote:
>>>
>>>>I wish to paint the interior of a garage, in order to lighten it up a bit.
>>>>Can anyone see any fundamental problems with wetting an area of wall
>>>>down for a couple of hours, followed by applying white portland cement to
>>>>it, with a roller?
>>>>It's unheated, so not really warm.
>>>>Or have I gone barking mad.
>>>
>>>
>>> I would have thought that a good exterior paint would have been a
>>> better bet.....
>>
>>Probably.
>>I have the cement, it's "free", and don't have the paint.
>
>
> Hmm. OK. Good luck......
Will let everyone know if I've discovered a wonderful new method of
surface preparation leaving a startlingly beautiful finish, or a new
way to knock down walls.
I suspect something in the middle.
andrewpreece
"Ian Stirling" <ro...@mauve.demon.co.uk> wrote in message
news:Fhr5c.23432$Y%6.23...@wards.force9.net...
You are talking about neat cement, right? A word of warning, I tried
something similar with lime once, and applied it quite thickly, about 1mm.
It developed zillions of cracks. Neat lime or neat cement in any appreciable
thickness shrinks upon setting, which is at least one of the reasons why
it is always used with sand. If you can get the coating very thin, like
limewash, then I expect you could get away with it.
Andy.
Ian Stirling
Indeed, I plan on going not much thicker than opaque.
At least for a trial.
Christian McArdle
Mix it with sand first. Then, if you don't like the result, you have a
sand/cement rendered wall ripe for painting, or even a finish coat of
plaster if you do it smooth enough. Sand isn't expensive. (Nor is paint,
really, you cheapskate!)
Christian.
Ian Stirling
First attempt - OK, but it dried out far too fast, so hasn't really set.
The bricks are very, very porous.
Test patch was around a square meter, and I ended up spraying around
3l on it, without wetting it enough to get it to stop drying out
too fast.
(It's about 7C, and humid)
Christian McArdle
Did you add the sand?
If you don't fancy coating the wall in diluted PVA (or paint) to block those
pores, then, at least, spray it with a garden house until it is seriously
wet before rendering.
Christian.
Michael McNeil
news:4057308b$0$6545$ed9e...@reading.news.pipex.net
> > First attempt - OK, but it dried out far too fast, so hasn't really set.
>
> Did you add the sand?
In the good old days limewash was made with mutton fat I imagine they
added the lime to hot water with the fat melted in it. You might try
some cooking oil or lard. Try painting an small area with a test mix.
--
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Ian Stirling
>> First attempt - OK, but it dried out far too fast, so hasn't really set.
>
> Did you add the sand?
No.
I don't think it'd have helped much, as I'm not going for a thick coating.
>
> If you don't fancy coating the wall in diluted PVA (or paint) to block those
> pores, then, at least, spray it with a garden house until it is seriously
> wet before rendering.
What sort of garden house is recommended?
And more importantly, where can I get a sprayer that will do this.
Does it have to be finely ground first?
I suspect it'd have been just fine if I got/kept it wet enough.
Christian McArdle
Don't buy one with too many windows. After it is crunched up, the glass
fibres get in your throat.
Christian.