Hey folks - hoping a simple solution exists for this scenario:

Have a single garage which a concrete floor laid decades ago. The concrete floor isn't raised in any way and has no DPC underneath - it's just concrete laid on top of rubble on top of the ground.

So if you leave a plastic box or bag on the floor overnight you get a pool of water underneath and generally it's just a a damp place.

So, rightly or wrongly, it's been cleaned then painted with two coats of a rubberised damp proof membrane 'paint' which is drying nicely just now.

Now it's not a garage a car will ever be in - more just storage of 'stuff' and bike maintenance or general DIY done in it.

So I had been thinking I'd use this rubberised stuff on its own and be done with it.
But suspect it will actually be a bit sticky even when fully dry and might then just 'lift' with foot traffic.

So - I'm hoping one can then just paint something on top of it?
I really am not keen on the amount if time and effort laying a layer of screed might take and that's not something is be good at anyway.

So any suggestions for what could maybe be used?

Cheers

 

THIS IS A GREAT POST ! i never knew there was a paint that could be applied over/on a damp surface what's the stuff called ?

while you're at it, could you explain/define ' DPC ' too ?

1 more question if you please,,, IF you suspect'd little or NO adhesion + ' stickiness ' meaning it'd stick to your shoes/tootsies, why'd you do it ?
can yhou please define ' layer of screed ' too ? i fear you think its placing another layer of conc on top of what's there - that's not possible & still achieve the results you'd anticipated IF i read your post correctly & understood your intent

then again, if you're across the pond, we MAY speak the same language yet be bloody miles apart, mate

 

While a harder coating can be applied over a softer coating it will not make the underlying coating adhere any better to the substrate. The more moisture gets trapped under the coating the more likely the coating is to peel. I hate to be the bearer of bad news but I expect your paint will fail sooner or later with the only real fix being removal of the coating you applied.

 

Stadry - Wickes Damp Proof Membrane Liquid 5L | Wickes.co.uk
Ps. It's not that I suspected 'past tense' it wouldn't work. It's now that it's applied that I suspect it won't quite do what I'd hoped. Otherwise as you say I wouldn't have bothered :-)

marksr - yep.

So I guess I could add more to this - it's actually not that critical that it stays perfect.
It's only a garage and I just wanted to improve the damp floor thing a bit.
Without going to the trouble of getting contractors in, building in a full damp proof course (DPC) and raised floor or digging up old floor etc etc.

For the cost of a tin of paint it seemed worth a shot.

Was only after applying I realised it's really quite tacky and wondering about whether I can layer something else on top so that I can at least get some wear out of it.
I know some folk do layer this stuff down then apply concrete (screed) on top when they're wanting to park cars in their garage.

So I started wondering if one could just a paint on top of the rubber stuff with traditional garage floor paint or such like. And sometimes folk pop up with all sorts of things that work that I'll not have thought of ...... so always worth a question on forums ....

Thanks for the replies.

 

almost forgot welcome to the forums!

The biggest issue with applying more paint to the floor is the better you seal the floor, the more apt the moisture below is to build up pressure and make the coating peel.

You might consider contacting the manufacture or talking to the folks where you bought your 'rubberized' paint to learn more about it and what to expect. While I know paint coatings in general I doubt I've ever used the coating you applied.

 

Hey thanks.

Yep - though Wickes could be hard to extract info out of.
You know - I'll see what happens with it in the next few days.
It may well 'cure' a bit.

Also vaguely tempted to very lightly cover with clean sand if it doesn't but I'll just monitor for now.

Cheers.