PMMA-coated graphene is made by applying PMMA (poly(methyl/methacrylate)) to CVD graphene on a copper substrate and then removing the "reverse-side graphene." The PMMA coating on top of the graphene serves to ease the transfer process and helps to avoid contamination. PMMA-coated graphene can be used to study the transfer process and allows our customers to transfer the graphene to different substrates to suit their specific needs. It's an exceptionally high-quality product with significant homogeneity and is ideal for research laboratories exploring the use of graphene.ACS Materials is a leading provider of nanomaterials, including graphene. We set the standard for quality, service, and price.