Painting a garage - easy?
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S47

Original Poster:

1,356 posts

204 months

Monday 3rd January 2011
quotequote all
Almost finished building my garage, built from concrete blocks, whats the easiest/best way to paint it, internally and externally - brush/roller/spray, I have all 3 so would like the quickest and most durable?
I was thinking of cheap emulsion intside and sandtex or similar outside. or can anyone recommend alternatives, colour isn't important except I'd like a light colour inside.
Several people have mentioned that emulsion won't adhere to concrete blocksconfused Anybody done it with good results, and if so how? and anyone have any tipsbiggrin:
TA
Mal

NWMark

528 posts

240 months

Monday 3rd January 2011
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Ive only poainted the inside of ours, and used Wickes 'rough' masonary paint - white. this wasnt on a new build so the bricks and mortor were far from perfect but it looks much better than before and brighter.

I used a a 4" masonary brush for the lot, as the mortor joiints are slighlty recessed between the bricks so a roller woulnt have covered and using a brush allowed me to get plenty of paint inbetween as in a few places the mortor was very sandy.


Spudler

3,985 posts

220 months

Monday 3rd January 2011
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By far the most effective and economical is to spray, but is also fairly expensive to hire http://www.brandontoolhire.co.uk/directory/prodVie...

Second choice would be roller (must be thick pile), takes longer, uses considerably more paint and wont cover as effictivly as a sprayer.

If it were me, no brainer, spray for far superior finish.

Edited by Spudler on Monday 3rd January 19:36

Martin Keene

11,106 posts

249 months

Monday 3rd January 2011
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Forget the roller. It doesn't get into the uneven surface of the blocks. Brush or spray.

eldar

24,903 posts

220 months

Monday 3rd January 2011
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Concrete blocks absorb gallons of paint, and take several coats, it will take days with a brush. Spraying is the answer.

sp2

47 posts

193 months

Monday 3rd January 2011
quotequote all
S47 said:
Almost finished building my garage, built from concrete blocks, whats the easiest/best way to paint it, internally and externally - brush/roller/spray, I have all 3 so would like the quickest and most durable?
I was thinking of cheap emulsion intside and sandtex or similar outside. or can anyone recommend alternatives, colour isn't important except I'd like a light colour inside.
Several people have mentioned that emulsion won't adhere to concrete blocksconfused Anybody done it with good results, and if so how? and anyone have any tipsbiggrin:
TA
Mal
Have you installed a damp proof membrane in the concrete floor?

Have you a dpc level in the foot/base blocks and up to 1st coarse blockwork at least?

Is the roof lined with roofing felt or non drip cladding that wont allow moisture to accumulate.

If no to all of these,then you NEED to apply the likes of Thompsons Waterproof/damp seal to both the exterior and interior of your block garage.Apply 2 coats of the stuff.Leave to dry into the blockwork for 24-48 hours.

Then you can paint away.

If you have rough cast plaster/dashed finishthen you use a DEEP PILE Stipple brush specificly made for exterior masonary painting

Leave that to dry in.

Thats what i did,and have no damp problems at all in my new built garage.I also used Daltex Ultra breathable roof membrane underneath non drip tile effect roof cladding,just to have piece of mind with regards to condensation matters.

Also,if you can get water and power to the garage and bury the pipes at least 750mm deep down away from the frost line in the ground,they will be kept away from garden shovels and also the earth will insulate them too,especially in this freezing weather.Make sure you use SWA cable for running power to the garage,and also use steel conduit and steel/metal boxes for sockets and use an IP Rated fuseboard too.








Edited by sp2 on Monday 3rd January 20:33


Edited by sp2 on Monday 3rd January 20:39

Stu R

21,443 posts

239 months

Monday 3rd January 2011
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Sandtex masonry paint and a masonry brush.

Sprays are decent but expensive, rollers are garbage. I did our double garage with a couple of pots of sandtex (used about 1.5) and did the floor with some cheapo grip paint from screwfix - did the lot in a day.

sp2

47 posts

193 months

Monday 3rd January 2011
quotequote all
Stu R said:
Sandtex masonry paint and a masonry brush.

Sprays are decent but expensive, rollers are garbage. I did our double garage with a couple of pots of sandtex (used about 1.5) and did the floor with some cheapo grip paint from screwfix - did the lot in a day.
+1 to the Sandtex.

Or else Dulux WeatherShield.

Brilliant stuff

scottS3

206 posts

207 months

Monday 3rd January 2011
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I found Wickes masonry paint to be better than anything else when I painted my garage walls. The Dulux stuff only provided about half the coverage of anything else.

youngsyr

14,742 posts

216 months

Tuesday 4th January 2011
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Spray it with diluted masonry paint. I painted my garage recently and brushes would have taken me weeks, rollers didn't work at all due to the roughness of the breeze block surfaces and spraying was much easier.

Bought the spray gun from here for £15:

http://www.screwfix.com/prods/13389/Power-Tools/Sp...


MuffDaddy

1,488 posts

229 months

Tuesday 4th January 2011
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youngsyr said:
Given I have a 6m x 5m garage, and a two storey house to paint both internally and externally, would this be the fella for me? I'd imagine lots of masking inside and around windows for the external render, but other than that I think this may save me hours.

youngsyr, you are a gentleman.

youngsyr

14,742 posts

216 months

Tuesday 4th January 2011
quotequote all
MuffDaddy said:
youngsyr said:
Given I have a 6m x 5m garage, and a two storey house to paint both internally and externally, would this be the fella for me? I'd imagine lots of masking inside and around windows for the external render, but other than that I think this may save me hours.

youngsyr, you are a gentleman.
I painted a 5.4m x 2.5m garage (three walls) with it and although it's not perfect (too small a reservoir, spray not always consistent, paint does get everywhere) it's 1,000x better and quicker than a brush or roller.

If I were painting a larger area I'd look at investing more in the sprayer, but for £15 it was a no brainer for me.

You will need to do lots of masking, covering pretty much everything as the paint does go everywhere, including putting a fine mist in the air (wear a mask!).

You do need to water down the paint for it though, regardless of what it says on the paint tin. I found 50/50 paint/water worked well through it, although it meant it needed two coats on bare masonry.

Edited by youngsyr on Tuesday 4th January 15:11

razor11

154 posts

273 months

Tuesday 4th January 2011
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Nightmare.....you guys make it sound so easy!

From previous write ups, I too had visions of an easy afternoon's work and a satisfying (and quick) result. So I went out and bought a HVLP electric sprayer (one with a larger remote reservoir). By the time I got my paint to a consistency where it would spray from the remote container, it was almost water and merely left a white mist on the walls. It certainly would have taken more than 2 coats. I then tried the pot that was attached to the spray gun and it was not much better. There was then the fun in transferring diluted paint from one pot to another, not to mention that the spray time was then reduced to a couple of minutes (and about 2sqm per pot). On the good side, the paint was so diluted that it was easy to clean out. In the end I gave up and used a brush.

I still have no idea what I did wrong and might need to have another go.

youngsyr

14,742 posts

216 months

Tuesday 4th January 2011
quotequote all
With the sprayer I used I just made up a fresh batch of paint every few minutes - half a reservoir of paint, topped up with water from a 5L plastic can. Quick stir and you're off again.

You do get through a lot of paint though, had to go back to the shop and get some more and then ran out of that too!

Spraying consistency wasn't too bad at all at that rate - two coats was fine.

If you have a flat surface though, defintely use a roller. My walls resembled the Devil's Golf Course though...


JFReturns

3,789 posts

195 months

Tuesday 4th January 2011
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I gave my garage a lick of paint last year, and had no idea where to start. The PH massive came to the rescue though, and there are some good tips which I tried out.

See here for thread

S47

Original Poster:

1,356 posts

204 months

Tuesday 4th January 2011
quotequote all
Awesome replies guys, I thought Spraying was the way to gobiggrin
SOmeone mentioned thinning out the internal emulsion 50/50 with water for the first coatconfused anyone done this??
Thx
Mal

youngsyr

14,742 posts

216 months

Tuesday 4th January 2011
quotequote all
S47 said:
Awesome replies guys, I thought Spraying was the way to gobiggrin
SOmeone mentioned thinning out the internal emulsion 50/50 with water for the first coatconfused anyone done this??
Thx
Mal
If you use a sprayer, you will have to thin the paint. As for thinning it on the first coat for using a roller or brush, I wouldn't bother whether you're painting on rough or smooth if you're using masonary paint, but then I'm far from an expert.

Smiler.

11,752 posts

254 months

Tuesday 4th January 2011
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I used a coat of PVA mixed with water, then 2 coats of matt emulsion followed by 2 coats of silk.

Did similar on the plasterboard ceiling, less coats of matt.

Took a couple of weeks in the summer working weekends & a few evenings.

Martin Keene

11,106 posts

249 months

Tuesday 4th January 2011
quotequote all
sp2 said:
Or else Dulux WeatherShield.

Brilliant stuff
I did mine in weathershield.

S47

Original Poster:

1,356 posts

204 months

Tuesday 4th January 2011
quotequote all
My garage is 6x5.5x3metre in size so spraying will complete the job rather quicklybiggrin
I plan to use a 5litre remote pressure feed paint pot, I've used this to spray cellulose[on cars] and varnish[on pine furniture] with great success. I suspect the emulsion will need thinning to spray properly though.
What about Sandtex or Weathershield paint which is bloody thick and has grit in it, anyone sprayed these paints. and did you need to thin thembiggrin
THX
Mal