Choosing between Polycarbonate, Acrylic and Glass for Secondary Glazing 

To buy cut-to-size polycarbonate sheet, visit www.secondaryd.... This site also has details for Easyfix DIY secondary glazing systems and draught excluders.
Easyfix Secondary Glazing systems can use glass or plastic sheet. This video looks at the strengths and weaknesses of glass, polycarbonate, acrylic and polystyrene, to help you make up your mind. For more details on the respective strengths of the sheets, see our Break Test video, on the same link above.
For acrylic and polystyrene sheet packs in standard sizes go to our other site www.tubewaysal...