painting masonry

[aidan]

I have a few outdoor walls to paint, entry driveway to the house.
Step 1 is a good wash with 2000psi power washer, very efficient method of cleaning and blowing off old loose bits of paint. after the wash I will be left with some bare patches on the wall, right back to bare plaster. before I do my 2 top coats of paint with a roller I want to patch the bare patches. I could give all these bare patches a dab of a brush but its time consuming, I was wondering is there any spray gun suitable for this job. Its masonry paint which is pretty thick, and I would need to dilute the paint 20-30% to get it to work through a HVLP satisfactorily. I guess Im wondering is diluting the paint 20-30% a significant factor in the paint losing its ability to stick to the wall, Id love a nice easy Spray gun for the job if anyone can recommend one.

These Wagner 100s aren't up to the job

 

[Kidds]

I have just painted new render with a brush, 1st coat 20% water and then 2 coats full strength. Didn't take too long especially considering how long I expect it to last.
Used Dulux trade Weathershield and was impressed how well it covered. I read up beforehand that the "trade" bit is important and I would agree.

 

[aidan]

I have just painted new render with a brush, 1st coat 20% water and then 2 coats full strength. Didn't take too long especially considering how long I expect it to last.
Used Dulux trade Weathershield and was impressed how well it covered. I read up beforehand that the "trade" bit is important and I would agree.

that recipe would last 3-4years where i live, 4 miles or thereabouts from the atlantic ocean, its just the way it is, no one makes an exterior paint that the atlantic ocean cant best unfortunately

 

[2wheels]

if you are doing it every 3-4 yrs would you not be better scratch coating and pebbledash/harling it?

 

[dave mountain]

you need airless spray for masonry paint, HVLP wont touch it unless heavily thinned. the wagner airless ones from screwfix are good, will spray stormshield (much thicker than sandtex) at 5-10% thinned. Buy dulux or johnstones if you want it to last, sandtex isnt what its cracked up to be imo.

 

[br jones]

I have a few outdoor walls to paint, entry driveway to the house.
Step 1 is a good wash with 2000psi power washer, very efficient method of cleaning and blowing off old loose bits of paint. after the wash I will be left with some bare patches on the wall, right back to bare plaster. before I do my 2 top coats of paint with a roller I want to patch the bare patches. I could give all these bare patches a dab of a brush but its time consuming, I was wondering is there any spray gun suitable for this job. Its masonry paint which is pretty thick, and I would need to dilute the paint 20-30% to get it to work through a HVLP satisfactorily. I guess Im wondering is diluting the paint 20-30% a significant factor in the paint losing its ability to stick to the wall, Id love a nice easy Spray gun for the job if anyone can recommend one.

These Wagner 100s aren't up to the job

buy better paint the stuff above is rubbish

 

[bumkin]

I agree with kids Dulux trade weather shield for me when painting our house the first thing i do is spray it down with 30% hypochlorite that kills off all the green alga then power hose then wire brush on an angle grinder for the loose flakey stuff and apply the paint with a roller

 

[Mike22]

Emperor Masonry Paint has a 25 year lifespan which is the best option IMO. A good value option is Armstead Masonry Paint too, which is really nice to work with.

 

[Harvey the rabbit]

We used to use snowcem on the exterior of the old pig buildings, it stood up to pressure washing fairly well and as it's a powder you can mix it thicker if you need to repair or fill in a few places.

 

[Oliveau]

Just as quick & easy with a roller

 

[aidan]

Just as quick & easy with a roller

roller is good alright quick v quick


Is there any easy solution to speed up cutting in around the edges, rather than a small paint brush

 

[jamesy]

roller is good alright quick v quick


Is there any easy solution to speed up cutting in around the edges, rather than a small paint brush

Yes, have all the structure the same colour then there’s no need to worry about cutting in.

You are welcome