Technical Guide Number Three - Flexible Clear PVC
Widely used as a flexible glazing material, this material can be manufactured in three different ways, each resulting a different quality of surface finish, and therefore clarity. The production processes also result in residual stresses that need to be relieved and/or allowed for if the impact of dimensional change is to be minimised . The quantity of plasticizer affects not just the degree of flexibility, but also other physical properties, which are also partially dependent on temperature. The specifications of Vybak (Wardle Storeys) and "Rollclear" and "Rollglass" are compared with AS 2324 "PVC film and sheeting (Flexible, Unsupported, Calendered)".
