ash_hammond
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| posted on 12/10/15 at 12:52 PM |
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Sealing the garage floor - shoddy paint job
Guys,
The concrete base which my garage sits on has been previously painted and badly done! It is peeling and lifting in places. I assume it was not
sealed before the painted was laid down. I know garage floor paint was used as the can has been left. Simply painting the floor again will only lead
to more issues and the same issues.
The base is roughly 8x4m, so its a fair size. I don't want to to hire a concrete polisher given the cost and the levels of dust they create.
Also, I font want to use loads of chemicals to strip the paint. It does not need to be a mirror finish job, just tidy and not peeling.
My thoughts are:
Tool up with the right PPE. :-)
1, Pick a small area which is affected. Probably 1x1m and give it a good scrub with a wire boom.
2, Seal the area with a water and PVA mix. I would like advise on the ratio.
3, Leave it to dry and them apply a decent paint and monitor before attempting the rest.
4, Once painted maybe add more PVA and water to apply a top coat seal.
Thoughts?
Thanks
Ash
.: www.mac1motorsports.co.uk | www.m1moc.com :.
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cliftyhanger
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| posted on 12/10/15 at 01:04 PM |
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If the paint is having issues because the concrete is damp, there is not much you can do without adding a damp proof membrane. AFAIK no paint will act
as a membrane for any length of time.
However, if it is just a poorly applied paint, I guess a simple scrape down is all you can realistically do. Then apply a 10:1 PVA mix, it needs to
soak in nicely. Maybe 2 coats. Then paint of your choice.
I would not put PVA on top though.
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YQUSTA
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| posted on 12/10/15 at 01:08 PM |
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My advise would be to give regal paint a call.
I have just painted my garage floor and found them very helpful.
I used the epoxy primer first then 2 coats of the epoxy top coat, each top coat needs at least 5 days to dry properly.
My floor now looks great, it is even smoother than before I started which is a bonus. I'm not sure if you will be able to prime over the top of
your existing paint but they should be able to tell you.
They weren't the cheapest but from all the research I did they came out as being very good.
"If in doubt flat out"
Colin McRae
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ash_hammond
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| posted on 12/10/15 at 01:20 PM |
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I do agree with you about the damp, but I don't think that is the case. There is no rising water or wet areas on the base.
.: www.mac1motorsports.co.uk | www.m1moc.com :.
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Slimy38
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| posted on 12/10/15 at 01:51 PM |
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I used Aldi garage floor paint on an unsealed concrete floor. Apart from tool damage and oil marks, it's been fine. It's quite a thick
paint, you don't as much paint it as pour it out and spread it around. 2.5 litre tins was meant to do 25 square metres, I think I got closer to
5 square metres per tin but that was probably the concrete taking it's share!
Considering the price it's a really good surface. I'm keeping an eye out for next time it comes round so I can touch it up.
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rusty nuts
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| posted on 12/10/15 at 06:02 PM |
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i know you say you don't want to use chemicals but I've found wire brushing the flow doesn't really do the job on its own , my lock
up floor is the same and found soaking a small area at a time with gun wash thinners works. If you use thinners make sure you have adequate
ventilation
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ash_hammond
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| posted on 12/10/15 at 06:41 PM |
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Thanks for the info its appreciated.
I bought myself a breathing mask respirator for situation like this and when sanding and painting etc.
I hate dust! 
.: www.mac1motorsports.co.uk | www.m1moc.com :.
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v8kid
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| posted on 12/10/15 at 07:13 PM |
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You can hire a concrete scrabbler or cutter which will take the top mm or so off the concrete floor. there are various different types, the best and
most expensive is the floating diamond cutting discs. Other types are vibrating pins but are a pain to use.
Cheers!
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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