Garage Floor Damp Issue... Any suggestions please?

[spread-tee]

Wow, I didn't realise it had such a wide range of applications, I remember sticking some floor tiles down on a timber sub floor, with SBR primer and admix in the cement , one got cracked somehow It was a nightmare to get it all up, the bond was amazing.

Desp

[Richard77]

So 1:1:5 (sbr:water:cement)?
How many coats?
Is it ok to go straight up the wall to the dpc?

[AGT]

I’m. It sure what you are applying to to be honest, as I’m on a phone and don’t have a great screen.

Thinner coats alternative directions would be best to ensure complete coverage with no missing points

[Richard77]

Sbr/cement slurry two coats applied:

















Wondering whether to lash a coat or two of black jack over it?

[Stinsy]

Looks like a good job. I don't see how slapping black jack over it will make any difference unless you really want to...

[Richard77]

Looks like a good job. I don't see how slapping black jack over it will make any difference unless you really want to...

Was thinking it was a bit overkill but while all the soil/stones/blocks are up.... Can't do any harm I suppose. See how the slurry looks after it dries tomorrow.

I've also got quite a bit of visqueen in the shed might cut a strip and lay that down before I put everything back.

[Bugtownboy]

To be honest, and it’s not coming from anything technical, while I had everything exposed and I’d got the stuff in the shed, I’d slap it on.

If, for nothing else, avoiding the ‘I wish I’d tried that when I had the opportunity’ moment.

From the pics, you’ve done a cracking job

[spread-tee]

Looking good, I would let that thoroughly dry out then flick some water on it from a brush, if it looks in the least absorbent I would give it a couple of blackjacks. As BTB says you have done the hard work opening it all up, don't risk doing it twice. I was looking at some old damp remediation jobs we've done, never had SBR slurry specified, rather always some kind of bituminous gloop/bituthene, but new products come on the market all the time, so I could be out of date.

Anyway good luck.

Desp.

[Richard77]

Cheers Bugtownboy and Desp...

Thank god I found the knee pads before finishing today as I had had enough of arthritic knees kneeling on little stones!

[Richard77]

Has anyone ever used black jack or equivalent? What is the finish like once dry (will it ever completely dry or stay tacky)?

I was going to paint up to the dpc black anyways, get away it or have to paint over it?

Can you paint over black jack?