i know the ideal solution is to seal from the outside…
But have any of you used it? Pros & cons?
I’ve used it and it worked nicely. To make sure it had a nice bond I used TSP (Tri Sodium Phosphate) over the surface first. Then filled in my rod holes (my basement was poured with those rebar rods to hold it together) with cement and then finally painted it all with Dry Lock cement.
Very rugged stuff and made a nice bond. Also it is really waterproof. I’ve spilled drinks on it and it’s just pooled there until you clean it up. It doesn’t soak into the concrete at all.
I’ve spilled drinks on it and it’s just pooled there until you clean it up. It doesn’t soak into the concrete at all.
Wait, so you put it on your floors?
You can if you want. I helped my father do it years ago in his home and I need to do it in mine very soon. Just need to strip the basement first and yes I’m going to do the floor also. My house foundation is quartz stone with poured concrete. Odd, I know but it was built with local materials back in the day. It looks like they dropped loose quartz stones into a mold and poured concrete to fill in the gaps.
My neighbor has offered to let me borrow his backhoe so I will probably do the outside at a later time.
There are also some top shelf waterproofing paints/coatings made by Thoro Company-they used to be indie but after several acquisitions are now owned by BASF. Google for Thoroseal (one of their flagship products) for the company website. There’s a ‘where to buy’ link on the main page, too-you ain’t gonna find this stuff at Lowes or Home Despot. I’ve been using their products for positive and negative side waterproofing for almost 20 years, and haven’t found anything better.