I have an untreated concrete garage floor which I need to seal initially to glue down a threshold but generally to prevent dust from the concrete. The threshold supplier suggests a paving sealer which to me is principly a waterproofer my own feeling is that PVA is the answer as damp through the concrete should not be an issue as the base has a complete DPM.

Tricky Dicky wrote:
I have an untreated concrete garage floor which I need to seal initially to glue down a threshold but generally to prevent dust from the concrete. The threshold supplier suggests a paving sealer which to me is principly a waterproofer my own feeling is that PVA is the answer as damp through the concrete should not be an issue as the base has a complete DPM.

I'd flood the area with diluted pva and allow to soak in. Should do the
trick.

On 13/04/2018 09:45, Bob Minchin wrote:
Tricky Dicky wrote:
I have an untreated concrete garage floor which I need to seal
initially to glue down a threshold but generally to prevent dust from
the concrete. The threshold supplier suggests a paving sealer which to
me is principly a waterproofer my own feeling is that PVA is the
answer as damp through the concrete should not be an issue as the base
has a complete DPM.

I'd flood the area with diluted pva and allow to soak in. Should do the
trick.

I suspect PVA is just a bit too water and oil soluble to be a good
choice for this sort of thing. There are better products around for
sealing concrete. You may as well do it right first time if you are
going to do it. Car tyres squeak on some of these sealed surfaces.

The ones that work really well at penetrating and binding the surface
layer of concrete tend to be a bit horrible to work with.

Enough dust and leaves blow into my garage under and around the main
door that I have never bothered to seal the concrete surface.

--
Regards,
Martin Brown

On Thursday, 12 April 2018 21:59:45 UTC+1, Tricky Dicky wrote:
I have an untreated concrete garage floor which I need to seal initially to glue down a threshold but generally to prevent dust from the concrete. The threshold supplier suggests a paving sealer which to me is principly a waterproofer my own feeling is that PVA is the answer as damp through the concrete should not be an issue as the base has a complete DPM.

PVA is alien to glues & water soluble. Epoxy is the best wearing.


NT