Quote Originally Posted by PoolDoc View Post
Richard, do you know of products that have worked for sealing stone?
Not for stone specifically, but for concrete, yes. We have troweled concrete made to simulate flagstone and use Glaze 'N Seal Multi-Purpose Clear Sealer (with a fact sheet here) every year as recommended by our concrete installer. Stone is trickier and as Sean noted the proper product depends on multiple factors. John Bridge Tile Forum is an excellent forum on tile but also talk some about stone and sealers. Other forums such as Stone Forums aren't as busy and I'm not so sure the information is as reliable.