Recent content by ningji

Hi Shea, thx for the details, this is good info. my big question is, how deep should i remove the weak layer ? Years ago when the contractor working on epoxy, he did grind the concrete floor 1st, the problem is, seems it's still dusty after grinding. i'm worried about the situation of the whole...

what do you think of lithium silicate densifier ? to harden this old concrete 1st ?

actually since the concrete floor is so old and dusty, i would rather it can absorb the right chemicals and hardening the floor. This is AI says: Concrete densifier This is more like: Usually: lithium silicate sodium silicate potassium silicate It chemically reacts with concrete and...

My 1st post here, pls be bear with me. I'm from Worcester MA, can have heaven snow in winter, salts on the road. Hired someone did the epoxy floor 3 years ago, the epoxy under where my car parking area is peeling off a lot, it's a common problem as you all aware. Before that, the 45 years old...