Thank you for all the wonderful information. I recently purchased three plates - 2 gel press and 4 " round gelli . I love LOVE love all the possibilities and am slowly starting another stamping related craft (haha)
I noticed the bubbles form with using the sheets they came with. I searched and here is what i am trying....
I bought from Esty a couple acrylic plates that are larger than the size of my gel plates - this makes it easier when monoprinting. Non skid shelf liner over plastic film (walmart material isle - to protect the kitchen counter island from stains and such) and the plate clings to the acrylic plate. Now my gel plate is anchored and doesn't move around and it protected on the bottom side.
Recap...(plastic film (or use a cheap outdoor table cloth) - non skid liner (cut slightly larger than my gel plate) - acrylic plate - gel plate )
I also purchased a Sterlite container that is a little larger than the 8x10 gel plate I have.
Trial storage is this: layered bottom first
non skid liner, acrylic plate, parchment paper cut slightly larger than gel plate, gel plate, parchment paper... and thin cardboard like a cereal box on top. Next...
I then have the additional gel press plates layered 5x7 and 4" round layered the same way.
I then added extra saved from trash bubble wrap to make it snug but not tight. and put the container lid on top.
There is nothing that can imprint on my gel plates and hopefully no more bubbles from protective covering on the plates.
Apologies if this didn't make sense as it did in my head
as I was writing but hopefully it comes through enough.
If i don't add another post, then this worked and my acrylic sheet bubbles disappeared and all is good... Fingers crossed!!