I want to make my bar shiny

Hello! Actually there are cleaner/sealer products out there sure shiny countertops. Polyurethane is not the only product that can be used. Tale a look at the ad below that states only one coat of their product is needed .

http://store.countertopspecialty.com/Sealers-c6/

you need to use polycrylic so it does not yellow,applying g a few coats allowing to dry in-between

Those bars use an epoxy - needs to stand up to moisture, spills and constant wipe down. Here you go!

http://www.bestbartopepoxy.com/epoxy/?gclid=CjwKCAiAmb7RBRATEiwA7kS8VPkRDvzCy71OCRcJY0MlmaCiQ_frrmU1GlJ2l4s6Q9htmJSTdm1G-xoCWN4QAvD_BwE

Use Famowood two part epoxy

Hi Whiskey Sour, if it is wood, use a furitchure spray, like mister sheen. Don't use anything that has silicon in it. When, using @ spray, don't spray directly on to furniture, allway's sray your cloth then buff. I am commenting on not seening the bar serface. Depending on the serface you may need to give the surface @ light sand @ coat with polly urethane instead. You might be best to apply to coats of polly urethane. Hope this helps. Be nice if you could post a picture when you are finished. I woild like to see how it the finnish turns out. Hope this is helpful Kay Adelaide Australia

here is how its done with polyurethane.... https://www.youtube.com/watch?v=96KywJlZ9g4

otherwise you use crystal clear bar top epoxy and pour it on.

Hi! There are several types of high gloss finishes you can use apply to your bar: polyurethanes and epoxy resins. If you want the most durable finish then choose one of the table top polyurethanes. Otherwise get epoxy resin, it will create more interesting look: for example you may add dye to add color to your bar.