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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Preparing exterior walls for painting
I have a newly built cavity block walled extension with cement render
coating which I need to paint to match the rest of the house. It is not particularly exposed. What prep does it need? Some say ordinary masonry paint after a good brushing, others a stabiliser which will be expensive and others a coat of PVA mixed to 5 parts water. Anyone had a good experience? |
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Preparing exterior walls for painting
the best way is to read the relevant literature with the paint.
Generally if the wall is sound, previously painted areas , if any are also sound and free from growth such as moss then several coats of the masonry paint is the best. By several I mean whatever the manufacturer recommends depending on the colour chosen and what the colour is you are painting over. Stabiliser is only needed when the surface you are applying it to is poo, flaking or very dusty. On a new rendered surface I would just use 2 (or perhaps 3) coats of a quality masonry paint |
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Preparing exterior walls for painting
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#5
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Preparing exterior walls for painting
N. Thornton wrote in message ... (Ged) wrote in message . com... (Pentranch) wrote in message . com... I have a newly built cavity block walled extension with cement render coating which I need to paint to match the rest of the house. It is not particularly exposed. What prep does it need? Some say ordinary masonry paint after a good brushing, others a stabiliser which will be expensive and others a coat of PVA mixed to 5 parts water. Anyone had a good experience? Have been painting the outside of my house several months ago. It talked about weathered areas need stabilised...For the first time in my life ( mainly due to time constraints ) I slapped on the sandtex without undertaking " proper " prep..Suffice to say 3 months on, its not flaked, fallen off and still looks great..Perhaps I've just been lucky but I suspect the old coat would have to be pretty shoddy if stabiliser would be needed.. Here I got paint falling off, dirt and welded-on plant growth on the wall. Screwfix stabiliser is £22 a gallon, and they got several types of masonry paint, including one at 18 a gallon that says it does its own stabilising as well. Would that be the one to go for? BTW I did some painting last year with their £11 water based masonry paint, and its already falling off. It was a real quickie job and I did minimum prep. Any gurulike advice appreciated. Pliolite masonry paints stick like **** to a blanket. |
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Preparing exterior walls for painting
"stuart noble" wrote in message ...
N. Thornton wrote in message ... Here I got paint falling off, dirt and welded-on plant growth on the wall. Screwfix stabiliser is £22 a gallon, and they got several types of masonry paint, including one at 18 a gallon that says it does its own stabilising as well. Would that be the one to go for? BTW I did some painting last year with their £11 water based masonry paint, and its already falling off. It was a real quickie job and I did minimum prep. Any gurulike advice appreciated. Pliolite masonry paints stick like **** to a blanket. Right ta - thats the one I was looking at. Looks like fairly evil stuff though fume wise. Am I going to turn people into walking zombies with this stuff? Regards, NT |
#7
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Preparing exterior walls for painting
N. Thornton wrote in message ... Right ta - thats the one I was looking at. Looks like fairly evil stuff though fume wise. Am I going to turn people into walking zombies with this stuff? You hardly notice the smell outdoors. Johnstones had magnolia on special recently if you have a supplier locally. |
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Preparing exterior walls for painting
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