Painting fresh sand cement pebble dash wall & Existing painted pebble shad help

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Got loft conversion with hip to gable wall freshly done and finished with sand cement pebbledash. What would be the right procedure to start painting it? what about the first coat and then second third etc.

I also have the wall below still in pebbledash already painted few time from the previous owner. What would be here the best procedure to stick to another coat of paint to match the colour of the new one? Any PVA or based coat first to increase grip.

The paint will be used Dulux trade weathershield masonry smooth in Gardenia colour.

Thanks
 
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JohnD

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Don't put glue on it.

Mist coat diluted with water on unpainted surfaces. Will probably need two.
 
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Don't put glue on it.

Mist coat diluted with water on unpainted surfaces. Will probably need two.

50/50 with water on the new one? 1 or 2 mist coat?

On the existing old painted do I go straight with the new paint on top with no other product or treatment?
 
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JohnD

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50 50 I'm sure you will need two. 20% is plenty. The instructions are on the can.
 

JohnD

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https://www.google.com/url?sa=t&sou...Vaw1NfWO1Cil4nw_1CAQhmMhI&cshid=1604127102272


Application Method
Application: Brush, roller or spray. STIR THOROUGHLY BEFORE USE. Seal all new or bare surfaces with a thinned coat of Weathershield Smooth Masonry Paint (up to 1 part clean water to 5 parts paint). The normal finishing process is 2 full coats of Weathershield Smooth Masonry Paint, but on previously painted surfaces in good condition, where similar colours are used, 1 coat may be sufficient. In normal conditions two coats of Weathershield Smooth Masonry Paint properly applied to the substrate in accordance with the instructions will perform satisfactorily for up to 15 years giving good colour stability
 
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https://www.google.com/url?sa=t&sou...Vaw1NfWO1Cil4nw_1CAQhmMhI&cshid=1604127102272

Thanks


Application Method
Application: Brush, roller or spray. STIR THOROUGHLY BEFORE USE. Seal all new or bare surfaces with a thinned coat of Weathershield Smooth Masonry Paint (up to 1 part clean water to 5 parts paint). The normal finishing process is 2 full coats of Weathershield Smooth Masonry Paint, but on previously painted surfaces in good condition, where similar colours are used, 1 coat may be sufficient. In normal conditions two coats of Weathershield Smooth Masonry Paint properly applied to the substrate in accordance with the instructions will perform satisfactorily for up to 15 years giving good colour stability
 

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