Painting Old Pea Shell Pebble Dash Not Previously Painted ?

[WhiteVanJack]

Hi,

I hope to paint a large area of pea shell pebble dash on a gable end. The pebble dash has not been painted before and is quite old.

After reading through some threads on the forum I am confused on whether I need to use a stabiliser or primer before starting with the masonry paint. Some posts say it should be sealed, others say a stabiliser will not absorb into the stone pebbles and will stop the masonry paint adhering correctly to the pebble dash?

My proposed method is to use a roller with either Dulux Trade Weathershield masonry paint or Sandtex and give it a minimum of 2 coats of masonry paint. Or, would a pliolite based masonry paint be better?

Is it necessary for me to apply a stabiliser or primer or can I just go ahead with the masonry paint directly onto the unpainted pebble dash?

Or, am I letting myself in for a thankless task and should I reconsider and save myself the hassle and settle for a dirty old pebble dashed gable end

Rgds
Jack

 

[TheDec]

Jack.

There it's not wise to apply a stabiliser to either sound masonry or render, brush the wall lightly with a stiff bristle brush to remove surface dust. Don't apply to much pressure you don't want to loosen the dashing.

A water based paint would be fine, just ease the first coat with a little water, and finish with one or two further coats. You could if you wish add a small amount of water but don't overdo it. This will help the paint flow both over and between the dashing.

Dec.

 

[harleythedog]

get a pro in to spray it with acrylic. 5 colours, breathable 10yr min lifespan

 

[Pineman]

As TheDec says really. Did mine like this and looks good. Although I washed the wall with a hose rather than brushed it.