I'm thinking of making lids for my deli FF containers by cutting a hole covered with the plastic mesh screen for windows. Will this work? I've bought a few of those pre made filter paper lids but I want to make use of my current lids.
The silicone isn't toxic at all once it's dried and set. I have a springtail culture that has a micron filter glued in place with silicone which is doing just fine. And springtails are supposed to be much more sensitive to chemicals than FFs.I use Elmer's regular white glue to attach the fabric. It is non-toxic and holds the fabric to the lid very well. You can smear it onto the lid with your finger and then apply the fabric. Silicone is too toxic, messy, and expensive for something like this.
Do you have a picture of the fabric you are talking about? Maybe an ID from JoAnn Fabrics or something?For anyone that's interested you can purchase the fabric that the pre-made lids are made of from JoAnn Fabrics. I only know because my mom works there and I have her pick me a few yards occasionally. I believe it's pretty cheap at 99 cents for a square yard. From there it's just a matter of securing it to a mason jar or standard deli cup by whatever means you choose.