What type of polyurethane or sealant can I use to get a hard clear thick cover on a table?

All polyurethane's will do what you ask. Water based tend to be a little clearer,sometimes with a slight blueish cast. Solvent based urethane's are typically a little 'warmer', looking with an amber cast. Obviously, the more coats, the thicker the finish. Two or three thin coats are recommended. A gloss finish is somewhat harder than satin. (It'll say gloss or satin on the can.) If you require a VERY thick finish, use a clear two part epoxy. It's expensive and kind of difficult to work with, but it gives you that 'sheet of glass' look. They often use it with decoupage. Good luck with your project!What type of polyurethane or sealant can I use to get a hard clear thick cover on a table?
Here are some links for products that do just that....


Also some links to show you how t0o do it professionally....What type of polyurethane or sealant can I use to get a hard clear thick cover on a table?
Try using varathane. My husband used it on our coffee table after he restained it.