It filled in the normal bubbles on the cast surfaces, and even smoothed out the rough spots on top of my cast in place countertop. I highly recommend this especially for an amateur doing a cast in place countertop like me. I tried making a slurry from cement but the sand is too big to fill holes. Its just easier and not that much different in price to buy this product.
How To Easily Repair Holes, Cracks, Or Chips In Marble And Natural Stone In 3 Minutes | Duration 3 Minutes 38 Seconds
You either need this product or get glass micro balls to mix into a cement.
This will not fade in sunlight nor stain from acids (lemons etc).
The alternative is having a nice counter today, but a not so nice counter a year from now.