Davis- 1) Does PMMA stand for "POLYMETHYL METHACRYLATE (ACRYLIC)"? 2) What are the manufacturers names for the PMMA and epoxy materials you are using? Please describe how the materials are applied. -Michael Alderete Davis Yang wrote... ------------------------------ Date: Thu, 15 Apr 1999 08:28:06 +0800 From: Davis Yang <[log in to unmask]> Subject: Help for protective material of Thick Film Hi, Technetter, We are using epoxy & PMMA as a coating material to protect thick film. However we are seeing problem. Does anyone know the spec of these coating material , like water absorbability spec(@100C degree, 2hrs) or vapour absorbability spec? and Please advise some better coating material for protection of thick film? It is urgent for line stop. Thanks in advance! Davis ------------------------------