MATNIKS Silicone Rubber Sheet 6x6-inch by 1/8 Black [3-pack] Duro Shore A65/ High Temperature Heavy Duty for Gaskets DIY Material Supports Leveling Sealing Bumpers Protection Abrasion Covers Vibration

It really helped keep my things stored fresh!

Useless product

I got these sheets because I couldn’t find a silicone gasket for my 1 cup Bialetti. The rubber stock gaskets work well but need replacing at least once a year. (Or whenever they start to gum up) This silicone lasts longer is much easier to clean and there’s enough material in the 3 sheets to make 12 “3 cup moka express” and 12 “1 cup moka express” gaskets. (Basically enough last decades! - or can be considered 1/4 the cost of premade gaskets) The material cuts very easily with an exacto knife and fine with scissors. Interestingly, the 3 cup inside diameter is exactly the same as the 1 cup outside diameter. So if you’re careful, you can get two filters out of three cuts. For gaskets: Do not copy the rubber size - measure the metal and cut it to fit that. The rubber is slightly bigger - sized to squish into place and the silicone won’t react the same way. I used a ballpoint pen in a compas along with an exacto. After one week of use I’m very happy with this material - plus I have enough for random future projects.

These work perfect for making airtight seals in my sugar, and flour storage containers!! Highly recommend!!

I ordered this gasket material to seal up some containers for food storage. The product description indicates these are food grade material. When I opened the package there is a real chemical smell which concerned me . . . I thought no way do I want these near any food. But I know that producing this kind of product there are chemical compounds involved so I deccided to see if they would air out. If you separate all of sheets and lay them all out separately somewhere you'll find that they will off gas, just like the plastic and rubber parts in a new car. It takes a good few days, maybe a week or so but mine have no odor now at all. I feel if I wash them thoroughly that they are indeed safe for use for my purposes. You have to remember that they've probably been sitting on an Amazon warehouse shelf for many months, many even a year or two so thepackages for sure have built up an odor.