the best way to fill a sink is with epoxy..Make sure it is dry. Also make sure you are using Epoxy and not polyester.. Polyester is not good around water and will discolor. I like using a clear epoxy. You will need a long cure time(7-8 hours).Fred Hueston PhD
Stone and Tile Failure analysis stoneforensics.com
My blog and great articles http://thestonedude.blogspot.com/
fhueston@live.com
Chief Technical Director http://www.stoneprosolutions.com
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