Cleaning concrete before paint

[RichardM]

Unreal how a hot radial tyre will lift floor paint is it not....?

Yes, just have some non slip vinyl under her now.

 

[Melvyn Best]

I would steam clean my workshop floor every year , usually the Saturday before the Easter holidays, then the following Wednesday I would paint the floor using a new soft broom as a paint brush , I would then have Thursday until Tuesday off to give the paint a chance to go off. It would be an annual event but apart from looking better for a while it kept any dust down.

 

[Onoff]

SBR at the very minimum will dust proof at least a concrete floor but make sure you get the laitance layer off whatever. The SBR is waterproof.

I remember using a wetroom tanking kit, the instructions clearly say if you run out of the supplied "special" primer you can use SBR...which oddly looks and smells exactly the same as SBR...

 

[m_c]

The only floor covering I've seen last in a workshop environment, was done by a contractor.
They came in over the weekend, cleaned/ground the floor, then put down some form of two pack.
Took a couple days to fully cure, but you could drive on it on the Monday morning, and even in the high wear areas, it was a few years before it became noticeably worn.

 

[Pete.]

Hand-floated floors usually have too much fat on the concrete. The towelling action pushes down the aggregate drawing water and sand up leaving a soft surface that comes off like powder. It looks great to the un-trained eye when it's done but just keeps giving up dust and ends up with more gouges than a skating rinknif you move anything g heavy over it. My garage is terribly bad for it and is getting fixed soon, but the workshop has a nice beam tamped surface done by contractors which isn't nearly so smooth but is a lot harder and doesn't tend to come up.

 

[Onoff]

I would have gone 2 pack if the single pack stuff hadn't been gratis!

 

[8ob]

SBR at the very minimum will dust proof at least a concrete floor but make sure you get the laitance layer off whatever. The SBR is waterproof.

I remember using a wetroom tanking kit, the instructions clearly say if you run out of the supplied "special" primer you can use SBR...which oddly looks and smells exactly the same as SBR...

I have used sbr on all the concrete floors as they are. I dont paint it on I flood them with the stuff, sweep off the excess the following day and let it dry. Works a treat.

Bob

 

[mark roberts]

Industrial lino would be nice. I did my little place in end grain wood blocks secured with hot bitumen. Very durable and nice underfoot.

 

[angellonewolf]

i use carpet in my old garage

 

[brightspark]

SBR at the very minimum will dust proof at least a concrete floor but make sure you get the laitance layer off whatever. The SBR is waterproof.

I remember using a wetroom tanking kit, the instructions clearly say if you run out of the supplied "special" primer you can use SBR...which oddly looks and smells exactly the same as SBR...

it is the special primer only quarter of the price used in ka tanking slurry and by sovereign damp proof supplies

 

[Onoff]

i use carpet in my old garage

Soaks up the damp?

 

[Turbo]

Washing powder and hot water is very good for removing oil stains from concrete.

 

[angellonewolf]

Soaks up the damp?

yes if your garage is wet

 

[hooblah]

I have used sbr on all the concrete floors as they are. I dont paint it on I flood them with the stuff, sweep off the excess the following day and let it dry. Works a treat.

Bob

Can you use it like that without painting over it? How long does it last?

 

[RWD3M]

And all this is why I polished mine. When I (and a couple of very experienced ground workers!) laid my slab (circa 800 sqft) about 8 years ago I asked about the cost implications and they just said it would be anothe 1/2 days labour plus equipment hire, so I went for it. I have to say, 8 years on, no paint, no sealer, a bit of spillage here and there and no signs of dusting up. The only dowside is that when I do any wood bothering (yeah, may the Forum forgive me) the sawdust seems to make the floor quite slippery!

I did use SBR on the floor of the wife's shed a couple of years ago and that seems to have held up really well.

 

[8ob]

Can you use it like that without painting over it? How long does it last?

I have, it will get painted one day, not so sure that will happen in my lifetime

Bob

 

[brightspark]

Can you use it like that without painting over it? How long does it last?

yea its ok to use without being painted, if it gets hard use just re apply a bit now and then and it will soak in to the porous concrete and harden it up

 

[Onoff]

Can you use it like that without painting over it? How long does it last?

I painted my new concrete floor in the bathroom with it. Left it about 2 years without tiling. Dust free tbh.