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It looks that bad??? I've lived here 11 years. I'm not sure when the shop was put in, I would guess 2005 ish? Unfortunately I dont know the history of the slab. The shop is at a lower point in my property, surrounded by asphalt, but behind the shop it grades down to some wetland/drainage type...

Best BMW wheel known to man IMO.

Still having trouble with white powder all over the floor even after the surface densifier and sealer. Any ideas?

One coat is all I should need right? Some spots came out with a bit of a sheen, other areas look dry. A few white areas where it may have pooled some.

Cleaned half the shop, spot cleaned grease, pressure washed, and applied one coat of PS104 yesterday. Seems to have absorbed it. Will take a photo and upload to the thread. Hopefully it works! Then I will do the other half of the shop.

I ordered the PS104 Densifier and will let the group know how it goes. Thanks all for the input.

OK thanks, both. I'll look into the densifier and maybe do a test section.

In more reading seems like a sealer would work? Like spec shield - SpecShield WB is a 100% reactive, waterborne silane-siloxane sealer. or MasonryDefender 1 Gallon Penetrating Concrete Sealer for Driveways, Patios, Sidewalks - Clear Water-Based Silane Siloxane Sealer Waterproofer with...

But they just come back. I'm constantly sweeping up white powder. Did some reading on the densifier. Is that something I should try? Looks like I can just pressure wash the floor, then roll it on. Doesnt appear extremely expensive.

Agree that it’s efflorescence. No I did not treat the concrete. Is that something than can go on afterwards? For some reason I thought it had to be in the mix. I’ll do some searching.

Bumping up my super old thread. I still have the shop. I have a humidifier, heater, and a fan that runs 24x7. The garage floor stays dry with all of that but I get alot of white powder coming up through the concrete. This is year round and is coming up throuhg the concrete, it is not...

Good suggestions above. How about 220v power in the ceiling for a lift?

Wow this barn is awesome! You are doing a great job.

I received a replacement from them, brand new in packaging. It has a steel direction selector. Have not had a chance to try it again.

Mine locked up first try last night... If you hold the selector all the way over the thing will freewheel in both directions. Not impressed, most I've ever spent on a ratchet. Emailing SK right now. Update: SK said send it in and they will take care of it. I asked them to cover shipping but...

Fantastic work!

Doesn't the lift have safety locks that you lower it onto so it can't leak down?

wow beautiful shop and nice craftsmanship!

Wow, some crazy angles in the loft but looks nicely finished!

Oh **** you are right! Why didn't they put the threads so it turned the other way?? Might have been safer! :dunno: