I used https://gianigranite.com/ and couldn’t be happier with the results. The instructions are easy to follow, and 1 year later they are holding up well. I do recommend extra clear coat though, because you will want an extra couple of coats on edges. If you’re a new DIYer like I was, watch the videos on the site and you will be fine.
We have a limited budget but want to update, refinish, or install a material over the existing limestone kitchen countertop. It is in the house we recently bought. ...
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This video seems to be a good one that will walk you through it. I know Rustoleum also makes a good product.
https://www.youtube.com/watch?v=9e2Bl75hFlY
http://www.diynetwork.com/how-to/rooms-and-spaces/kitchen/how-to-repair-and-refinish-laminate-countertops
I used https://gianigranite.com/ and couldn’t be happier with the results. The instructions are easy to follow, and 1 year later they are holding up well. I do recommend extra clear coat though, because you will want an extra couple of coats on edges. If you’re a new DIYer like I was, watch the videos on the site and you will be fine.
You can also go the tile route-https://www.hometalk.com/diy/kitchen-dining/kitchen-dining-furniture/tile-over-laminate-countertops-30310081
Tile Over Laminate Countertops