ROMPOX ECO-FINE Ready-Mixed Sand & Resin Joint Mortar: Triple Strength Formula for Narrow & Wide Joints, Porcelain, Pavers & Natural Stone. Pressure Washer Safe, Weed Free & Easy Installation (Basalt)

Used on a flagstone patio. Easy to install, looks great so far. Seems like it should hold up well.

This seems to have worked very well. Was a little disappointed in the color. Thought it would be more gray than it was but overall it turned out fine once we sealed it. Very expensive but if it lasts it’ll be worth it.

ROMPOX costs more than polymeric sand, but it performs a lot better. I used ROMPOX to fill in joints around large pavers. It's easy to apply and sets up nicely. The resin joint mortar surface, after hardening, is also water permeable.In the past, I tried polymeric sand, but it starts to loosen up on the surface, cracks, and can be easily etched.

I had been looking for a sustainable product for my outdoor stone path. Purchased two boxes of eco-fine. Applied the first box and it didn’t cover as much area as expected and it doesn’t have a perform like the application video. I will have to keep looking for a better product for my path. I’m worried about how i’m going to clean the spotty mess from this product. I’m totally bummed it didn’t work out well for me.

I saw this product on Instagram and gave it a shot. I bought 2 boxes and loved it. Worked great! Looks great! Bought 4 more boxes and got the same result! Started a different project and bought 4 more boxes and the first 3 boxes were the same. My last box was clumpy. I went to their website and reached out and to my surprise got a quick reply from customer service. A replacement box was sent the next day and it worked perfect. Great product! Great Service!

Much stronger and easier to apply than polymeric sand. Worth the higher price. Definitely recommend

I absolutely LOVE this product. I wanted to fill in cracks between flagstone where weeds and grass were growing and felt overwhelmed when looking at all of the product options until I found this one. I was worried about getting the consistency right with other products and loved that this comes ready to use. I contacted the company and paid for a sample to be shipped to my home to make sure I liked the color and to see how easy it was to use. It really was as easy as all the videos showed. I wet the flagstone, applied the product, smoothed it out, let it dry, washed off the excess and with in a day it could be walked on. I’ve used it in my garden, green house, a path to my storm shelter and plan to use it on 2 other pathways on my property. Yes, it’s a little more expensive than other products but it’s worth it!