Can cap for #2 cans

This is a mold to make a silicone cap for the very common #2 can. (Diameter around 74 mm.) I often have a half empty can of chili, soup or beans or whatever in the fridge and seal it with plastic wrap. This can cap is much better. I make these silicone lids for bowls and other containers. They are very easy to clean.

First off, this mold is deep. A 2-part PETG mold was a lot of trouble. Two parts was necessary to get the cap out of the mold.

So here I printed this one-piece mold with a stiff, but somewhat flexible TPU, hardness is 98A. It prints fast using PETG settings.. (Didn't try the common, softer 95A TPU but it should work too.) (UPDATE: Soft TPU works fine. Much easier to demold. The soft, 95A TPU was a long, slow print of around 3 hours)
Since the mold is slightly flexible, the cured silicone can be carefully removed. The little hang-tab is a good place to begin.

Update 1-18-26 I'm adding two smaller cap molds. A "#1" can, about 66mm in diameter, commonly used for tomat