Painting a concrete floor?

So this is the floor in the building at home I'm renovating at the moment.
The floor is previously painted - except for a section about 16sqm that is new concrete (well, mostly Ardit).
An epoxy finish would be nice, but I believe that would mean grinding all the old paint off the floor and I'm not doing that this time.
So that leaves a painted finish.
It's a floor (65sqm) that is not going to get a lot of hard usage - for now.
Any recommendations on paints? Any tips on applications?

Are you out there Painter?
 
I have seen the most amazing stencilled concrete floors.

I know, I know it's work but I also know you have a great quirky side and I'm sure some lime green would perk the place up

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http://www.royaldesignstudio.com/
 
I hadn't thought of a pattern. Boy, that opens up some possibilities. My soon to be 14 year old daughter is using the space for a birthday party next Saturday night and I told her she could paint stuff on the floor as it will be getting a paint anyway.
 
I like the pattern idea! I'm about to repaint garage floor that hasn't been painted for at least 10 years. I think I might do a stencil strip.
 
I wonder how hard wearing this is? I've painted a few carports to seal them from oil etc. No flaking to date, however I have known quite a few people's painted concrete to flake up after a few years? Just a case of making sure that you do the correct prep work?
 
Yep, mostly in the prep.
I'll give my floor a sand with my trusty Rotex 150 - probably pay someone to do that.
I'll wash the bare concrete section with acid and do the rest of the floor with something else. It's good that the space can be hosed out easily.
An epoxy finish applied by people who do that stuff would be about $3,000. For now I'll do a DIY thing. Bunnings have an epoxy for concrete floors. I'm going to take the risk of applying it over a sanded and cleaned but painted floor.
 
That looks great Westminster and I love the colour.

I have a pebble-crete patio facing south that keeps gathering moss like crazy.
How could I get rid of the pebbles and do something like this guys and gals?
 
I've used the Berger concrete paint that Bunnings sells with success, fairly happy with the result and haven't had any issues.
 
I'm thinking about a product from Bunnings called Epoxy Coat. It's a two pack. It only comes in a few colours, but one of them is 'sand dune' and that's going to be a yellow, which will brighten up the place. The application guide specifically say it can't be applied over paint, but I'm banking on that being something they to people contemplating putting it over a flakey or gloss surface. If I'm wrong, I'll be hiring a concrete grinder one day.

Re: the pebblecrete, WattleIdo. It's a pity you can't go back in time to 1971 and tell the bloke about to put it down that every person who buys the house after the 70s will curse him.
I guess you could see whether a skim coat of one of the self levelling products could be put over it after it's etched etc.
 
Thanks depreciator - I'll start looking into it. I did spend hours on some site about skim coating.
Good luck with your project - and sand dune sounds nice and warm. Keep us posted :)
 
I put polished concrete floors in pretty much the whole house and everyone loves it. I did grind though, which set me back 700$ for a weekend with Kennards concrete specialists. No etching though.

I then used solver/ wattyl cf720 epoxy in gloss. Worked very well just make sure you measure carefully if you do batches of less than a full can or it won't cure / be less glossy.
 
This floor in a house we sold had been painted with some sort of resin coating, which had started cracking (after nine years of being looked after by owners, I believe tenants had dragged something over it, or left something wet on it?)

We either had to disguise it with a rug or redo the floor. I started peeling back where it had cracked, and that turned into a rather large job. Took us probably four hours in total to peel most of it, but where it didn't peel, we scraped it with scrapers. I did probably two thirds on my own, and asked hubby to help at the end. He was cursing me the whole time :D.

This "room" was a garage for 40 years, and I think the people who renovated probably just painted some resin product straight over the top.

I found some resin after some googling, went to pick it up (by now hubby and I were not on speaking terms and I thought "right... I'll do this myself!".

I had to mix two parts together and get it on before it started to set, about an hour from memory.

This is the before, during and after photos. I thought it was amazing. With the house now sold, unfortunately, I have no way of knowing how it stands up to wear and tear. I'd love to use it again though.

Before - rough, swirly and milky, but stunning floor. You can see where it had started to peel (after being tenanted, tenants tend to not care too much about dragging things over floors).


This is the peeling area, made bigger because I thought I'd peel it a little more... and a little more, until I had to keep going and either paint over it, or take it back by scraping. Several hours and a very sore back, I had it pretty clean. Hubby helped me for the last hour, grumbling and whining the whole time!


This is the coating going on, first coat. Looked very "hit and miss" but I don't mind that industrial look.


This is after the second coat. In a way, I preferred the first coat better, but I still love this finished look.


If anybody would like to know the product, let me know. I can dig it out from wherever I filed it.
 
Looks amazing Wylie - especially 2nd coat.
Would love to know the brand if you can dig it up from your memory....
I suspect it's the same product that's already been mentioned.
I once use this in decoupage :)p) to make a tray and it turned out great. I can't imagine it ever cracking, peeling or fading.
 
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