How do I DIY an aged zinc look for an MDF French slope fan hood?

Medium Density Fiberboard range hood?

I would take an existing steel hood and sand it, prime it gray and then spray it with “aluminum” paint, blotchy, and then use a “hammer tone” silver finish in an irregular splotchy pattern.,

you could also sponge metallic paint enamel paint, but a quart of that is more than 2 cans of metallic spray paint.

https://www.pinterest.com/pin/410883165987121608/

Here is one with chalk paint.... https://www.youtube.com/watch?v=9MpR-EMDILg quite a few on YouTube

Contact cement the zinc panels on the framing members.

Then surface solder them with a soldering iron (real zinc takes special prep).

I would design the interior of the “box” to hold an existing fan unit, as the fan/only is going to require interior custom fabrication too.

Hello. Layering washes on a metallic base can give a nice depth of color

This hometalk link could be helpful.

Easy Faux Galvanized Flower Bucket DIY | Hometalk

https://www.hometalk.com/diy/outdoor/garden/how-to-make-an-easy-faux-galvanized-flower-bucket-43286863?expand_all_questions=1

Hey Patti!! Check into Modern masters paint line! There line has a zinc look and many have painted their range hoods with them. Here is a link.

https://modernmasterscafe.com/2014/01/30/gorgeous-range-hoods-with-modern-masters/