495 conventional roving is manufactured with state-of-the-art equipment, innovative chemistry and a major commitment to statistical process control. The quality Management Program of Owens Corning manufacturing is certified as meeting the requirements of ISO 9002. Owens Corning 495 roving is manufactured from a collection of continuous glass filaments gathered, without mechanical twist, into a single bundle. The roving is then wound and shipped in a tubeless package ready for use in cstomer continuous operations.

P243 is a roving produced by assembling E-glass strands, wound without twist onto cylindrical cheeses. It is specially designed for the manufacture of translucent panels, using all types of cutters.
P243 has a sizing system with a silane coupling agent.

P243S is a multi-end E-glass roving, designed for chopping applications with various types of chopping machines. P243S has a sizing system with silane coupling agents. Thanks to its outstanding properties, P243S has been designed to provide optimal performances in chopping applications, such as translucent panel, complex and felts.

ME4040 is designed as a general purpose panel choppable roving.