For most householders, the choice of glazing sheet for secondary glazing is between glass or plastic sheet, and many people have an existing preference when they consider insulating their windows. In some cases, the system of choice will have a bearing, because some Easyfix secondary glazing systems can only use plastic, while some work well with either plastic or glass. There are many other criteria, however, such as cost, weight, strength, safety, maintenance and so on.
To help you decide, we have covered the main comparisons between glass and plastic sheet in the video above. If you choose plastic, there are different types, such as Polycarbonate, Acrylic and Polystyrene, which have different qualities. We recommend Polycarbonate as the best choice, and offer a cut-to-size service via the link to the Polycarbonate sheet page. Also on this page is an action video that clearly demonstrates the relative strengths of different plastic sheet types.
If you prefer to cut your own glazing panels from standard sheet sizes, this can be cost effective. Plastic glazing sheet can be cut with a jigsaw or router, and although Acrylic can be scored and snapped with care, Polycarbonate sheet is too strong to do this.
If you want to use Polycarbonate sheet in small pieces for modelling, photo framing or similar applications, our Offcut packs might be suitable for you.