Zinc Maintenance

Daily:

Not much beyond soap and water. Windex and a paper towel will be fine as well.

Moisten dried food and wipe off. Use a Scotchbrite pad as necessary.

Minor scratches and mineral streaking:

Zinc tops and hoods come with an Omni directional-brushed finish.

It is created using a Scotchbrite pad mounted on a sander.

Blend or minimize scratches using a household Scotchbrite pad. Scrub by hand using a random direction of motion.

This may also be done using a Scotchbrite pad mounted on a 4 x 4 sander.

Clean the countertop with soap and water and paper towel dry.

Deep scratches or dramatic etching:

Your tops may be sanded up through the grades,150,180, 220 grit, and buffed using a Scotchbrite pad. Use a circular (random) pattern for a #4 finish or a straight-line motion to simulate machine brushing.

High or mirror polished Zinc may be polished using automotive compounds
and a machine polishing pad.

More info:

American Zinc Association
International Zinc association