Nitrocellulose membrane is a very critical component of the assay. Along with high protein binding, surface quality and performance consistency are crucial parameters of substrate quality. Axiflow provides consistent, reliable membrane with best surface quality and performance consistency to improve your assays. Thickness of Membrane Layer : 105 ± 15 µm Thickness of polyester Layer : 102 ± 5 µm Membrane Color : White Polyester Layer Color : Transparent Other widths and lengths available upon request.