How To Seal Butcher Block Countertops Around Sink. After measuring your sink, you’ll want to cut and sand your butcher block to your desired length. Water splashing up and leaving spots on the surrounding lip of the counters, and rust stains in the sink (you can see one in the basin below on the right side).
As i mentioned on facebook and in a previous post (inquisitive readers keep me on my busy toes), i'm using a slightly different method for treating my new walnut countertops. Then we repeated the process for all the other countertop boards. There are a variety of options for permanently sealing and waterproofing butcher block wood countertops, commonly used in kitchens.
When considering sealers, there are two types available:
1) butcher block oil this is what i used on my first butcher block countertops. Pour a puddle of the oil onto the countertop and work it into the wood with a clean, soft cloth. Placing a sheet of metal over the dishwasher may be necessary to protect against steam. Seal the cut edges with a thick layer of clear silicone, and add a bead of silicone around the bottom of the lip of the sink before dropping it into the opening.