What to do with garage floor

RobAMerc · 06-04-2023 07:47PM #1

Hi all,

My garage floor is concrete but it was never properly sealed and is crumbly and always causing a lot of dust.

I have tried to seal with PVA glue but no use. I am now thinking I will use self levelling compound ( it also has a fairly big fall on it ).

Any advice on what else I could do ?

Thanks

Rob

WhatsApp Image 2023-04-06 at 19.53.48 (1).jpeg

The Continental Op · 06-04-2023 08:57PM

Epoxy Resin floor?

Shortest basic tutorial I could find

https://www.youtube.com/watch?v=8YZ02dt_ixg

but I suspect you don't need it perfect and might even want to bind the surface with something non slip.

10-10-20 · 06-04-2023 09:11PM

I'd suggest an application-specific resurficant. Seems 20N to 30N is suggested for garage floors, and that existing floor looks very sandy. PVA was never going to do more than keep the dust down by keeping the particle size up.

Ardex K301 appears to be what you need:

https://www.ardexbuildingproducts.ie/product/smoothing-levelling-compounds/water-based-levelling-and-smoothing-compounds/ardex-k-301/

Compressive Strength

After 7 days 20.0 N/mm²
After 28 days 28.0 N/mm²

Critical thing is getting the bond between the existing flooring and the new surface right. If it's crumbly, then it's going to de-laminate and fail in spots.

https://www.youtube.com/watch?v=2YkoSFwBfow

The Continental Op · 06-04-2023 09:55PM

To me that concrete looks like some of the stuff I make up for rough work with very little cement in it. With too little cement the surface will wear badly like that and PVA will only be of very limited short term use.