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...
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.
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...
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...