How do I seal a bamboo countertop?

I've never seen a bamboo counter. Is it made from bamboo flooring?

Lightly sand with a green kitchen scrubby. Wipe clean with a damp cloth. Make sure it's dry. Seal with three coats of a water based polyurethane. Go over each dry coat with the green scrubby except the last one.and wipe clean.

There are many sealers available just for that purpose. Go to your local Home Depot or the same type store in your area. Talk with a knowledgeable person in that department and choose sealer for your countertop. Follow directions carefully. It really is very simple and the results are beautiful. Good luck.

Like I said, I have never seen a bamboo counter. But before I would put on another top coat you need to find out if it is water based or oil based. The last thing you want is for it to peel after all your work. William gave you the correct process, I am just worried about a polyacrylic vs polyurethane. I'd go the safe route and use marine varnish but it is usually shiney. If you know where it came from, I'd call the manufacturer for direction or someone who sells them.

Before you apply a new top finish, you need to know if it is water based or oil based. William gave you the correct process, I am just worried about the type of finish. I'd call who ever sells those to get the information. The last thing you want is for it to peel. I'd be safe and use oil based polyurethane.