Painting interior walls of a garage

tweedbean

tweedbean

tweedbean

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Balsall Common
I am looking for any hints and tips for prepping and painting the walls in our garage. The garage is to be used for storage and working on my track car so I want it bright and airy.

I have heard people saying mix 5 litres of PVA glues to 20 litres of trade white emulsion to paint the walls. The PVA helps seal the concrete blocks as the absorb paint like a sponge otherwise. Other people have said paint the walls in PVA first then paint separately.

Has anyone followed either of these methods or done something similar?

The walls are a mix of brick and concrete blocks. I am going to get matting for the floor so will leave that for another day.
 
I always though pva before paint was a bad idea. Personally i would treat it like plaster and do a mist coat first with 50/50 water/paint. Then a couple of final coats on top.
 
when i did my garage i did not use pva just painted with some cheep layland white emulsion the stuff from screwfix.All i did was just paint took 2 to 3 coats with a roller and brush just put it on a bit thicker if needed in the odd place.
If its going to soak it up it will.
It may just may take a extra coat or so.but i did not get much soak in on a new build block and brick garage
 
I'm currently working through painting the walls of our garage. All breezeblock and yes, they do soak up the paint.

The first coat on the largest wall I started with a mix-up of assorted dregs of emulsion and watered that down a bit. Since then I've been using Johnstone's brilliant white emulsion in 10l tubs from B&M for around £12/£13 a tub - didn't bother to water the most recent tubs down, just slapped it on at that price :D

Each wall has had 3 or 4 coats and it looks pretty good (I've not been as careful as I would when painting inside)
 
Yep as above, just use cheap paint. Cheapest you can find, it'll soak it up but it'll all add the to the depth of colour :)

Screwfix have 10L plastic tubs of white emulsion for around £10.
 
I used cheap external masonry paint for mine - the first coat is painstaking due to it being quite coarse cavity block, but the second coat was much better.
 
Used external masonry paint and a paint sprayer. with a 75% paint, 25% water mix.
Worked fine and a lot quicker than rollering... but you have to wash out the sprayer after which takes more time than cleaning paint trays and rollers. Only took one coat per wall.

EDIT: Brush the walls down, brush all the crap out the garage. Put down dust sheets. Thats all the prep I did. Plain bricks and breezeblocks.

Sprayer_zpsnous78in.jpg
 
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When I did mine I just used cheap paint and cheap brushes, threw it on and bin the brushes once done.

Are you planning on painting/sealing the floor? if so do the walls first and don't worry about dust sheets etc.
 
What sprayer did you use?

I need to paint our pebble-dashed house this summer, and am loathed to do it with a brush\roller.

I have a fairly high-end airless sprayer but it's too powerful, and would get overspray everywhere. Looks like that system is a little more manageable.
 
Masonry paint is all you need for breeze block, or cement rendered walls. Dont use PVA at all, this prevents the paint from soaking in. Thin the first coat down to aid application, second coat at full strength.

As for pebble dash Skiddley, be careful with what type of paint you use on dashed walls. Limestone chippings or certain types of pebble dash contain highly polished stones. Water based masonry paints dont adhere to theese very well. For dash like this you need to use a primer/sealer prior to using a water based paint. Or use pliolite resin based masonry paint. Pliolite is self sealing, but quite difficult to apply compared to standard water based masonry paints. And it is much harder to clean off too so extra care should be taken to avoid overspray.
 
Cheers Setter; plan was to patch repair, and then use a stablising primer (sounds like the entire surface should be treated), before applying a masonry paint like weathershield.
 
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