This material is a high-performance special order tape with a Teflon surface layer, cut to the size of the mUVe 1 Glass Reservoir. It should also be useful in resin based 3D printers other than the mUVe 1, and it can be cut with scissors or a paper cutter to the desired size if you have a printer with different reservoir dimensions.
Dimensions are 8.5″ x 6.75″