Coating concrete walls and ceiling

[vlocci]

I'm finishing up a new shop that is built into the hillside of my home. It is essential a daylight poured foundation with concrete roof. With the exception of the garage doors the entire thing will be underground.

This will be a Fab shop for me, do I'm going densifier on the floor to keep down dust and to avoid worrying about things like weld splatter.

My question relates to the walls and ceiling. I would prefer to paint them to brighten up the space (recall, no windows and no natural light), but don't know what to use. The color will be light or white.

Given the size, I would like to spray with an airless sprayer which would rule out something like Dryloc.

I'm assuming latex won't work as it may discolor due to leaching of the concrete.

Do I simply use a garage floor paint **** as something from Behr?

Any suggestions? Taking to painting contractors had been less than helpful as I've yet to get the same advice twice.

Thanks

Vin

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[rburke65]

It wouldn’t take long to paint that with dry-lol with a roller.

 

[BombShelter]

vlocci, what are you using for waterproofing? If you haven't backfilled I'd highly recommend CETCO Bentonite Membranes. Around here, garages don't have drain-tile because they will freeze up, using Bentonite ensures the garage floor won't get wet on the inside when some walls are below grade.

I've used Thoroseal Products over the years for interior wall coatings. These can be purchased at your local contractor supplier, I just looked it up and it looks like BASF might have bought the company. The supplier can also supply additives for different colors. They have special bonding qualities that really make them stick to the wall and they are waterproof but it's hard, if not impossible to waterproof on the inside over the long term.

The surface must be new when used, the problem with older walls is it's hard to get products to stick once they get any grainy residue on them or water intrusion. I've rolled it and I think I've also used a hopper style air sprayer with this product. Two coatings are ideal and it does tend to look better than the bare walls.

It comes in powder form and must be mixed with water to get a syrupy consistency before applying

 

[vlocci]

Sorry for the delayed response, I've been busy building this project.

This is new construction with exterior applied waterproofing and significant drainage built in.

Still on the lookout for something to paint the interior (with the exception of the floor) white that is sprayable if anyone is following.

Vin

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