Painting over dry dash

worlds goodest teecher

Is there anything anything that I need to do or note before I paint over dry dash? In an exposed coastal region. I gave the light power wash. There is a little bit of black in the plaster at low level. Will a regular exterior paint be sufficient?

mloc123

worlds goodest teecher wrote: »

Is there anything anything that I need to do or note before I paint over dry dash? In an exposed coastal region. I gave the light power wash. There is a little bit of black in the plaster at low level. Will a regular exterior paint be sufficient?

From what I have read on this before, the best advice is.... Don't.

Cerco

Clean it off with diluted bleach or Chloros . You will get this in a farmers co-op .
Farmers use it for cleaning milking parlours etc.
Spray or dab it on a leave it for a couple of hours then wash off with a hose.
If using a power washer use it a low pressure to prevent it lifting the pebbles.
You may have to repeat a couple of times for stubborn stains.
The real benefit of dry dash is that it does not need painting.
If you do , in a coastal area, you will be painting every year or two.

worlds goodest teecher

Cerco wrote: »

Clean it off with diluted bleach or Chloros . You will get this in a farmers co-op .
Farmers use it for cleaning milking parlours etc.
Spray or dab it on a leave it for a couple of hours then wash off with a hose.
If using a power washer use it a low pressure to prevent it lifting the pebbles.
You may have to repeat a couple of times for stubborn stains.
The real benefit of dry dash is that it does not need painting.
If you do , in a coastal area, you will be painting every year or two.

I appreciate your comments. The main reasons for wanting to paint is that improve the appearance of the house. It is a 20 year house, dashed with white, black and grey pebbles. We bought the house this time last year and it definitely needs freshening up. I bought a power washer in lidl and was going to use the cleaning fluid that came with it. If I do go ahead with painting what is the best value exterior paint to use?

mloc123

If you are going to paint it, any masonry paint will work... So buy whatever is best value. IIRC you will need to stabilise it before painting tho, using a stabilising primer.

listermint

If I was going to paint it given your location I would not scrimp or look for best value. You should be looking for best application. Anything less and you might as well just stay outside and continue painting around again when your finish. Because you will be forever out there, like the lads doing the golden gate bridge

stephenmarr

Why would dry dash need to be painted regularly? Thinking of painting my house.