Poly(methyl methacrylate) (PMMA) is a thermoplastic and transparent plastic. Chemically, it is the synthetic polymer of methyl methacrylate and is commonly called acrylic glass or simply acrylic.
Applied properly, acrylic can withstand high static and dynamic pressure loadings. Failure modes are benign, typically in the form of cracking & crazing and acrylic will not chip like glass. ASME Safety Standard for Pressure Vessels for Human Occupancy (PVHO-1) states explicitly that “windows shall be fabricated only from cast polymethyl methacrylate plastic (acrylic)” .
Blanson manufactures an acrylic grade that is biocompatible and satisfies the requirements of USP Class Vi (6) and FDA for the biopharmaceutical industry.
Acrylic tubes are more cost effective than glass in larger sizes. In addition, the use of acrylic in small size biopharmaceutical hardware reduces production scale-up costs and the requirement for process revalidation.