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Peel Ply Fabric Peel ply is a woven nylon heat cleaned fabric which is positioned around the periphery of the laminate in direct contact with the PVB or EVA adhesive interlayer. This material is used as a barrier and effectively prevents the vacuum bag and breather fabric polluting the adhesive layer. The fabric is hot knife slit to avoid loose fibers contaminating the cured adhesive and is easily stripped away from the laminate at the end of the cure cycle (Fig 1). Peel Ply Fabric Product Selector Guide Product Reference A100PS B100 FINE WEAVE Width 50mm (2in), 75mm (3in), and 100mm (4in) 50mm (2in), 75mm (3in), and 100mm (4in) Length 100m (328ft) rolls 100m (328ft) rolls Weight 80gsm 60gsm Max Use Temp 204°C (400°F) 204°C (400°F) If an alternative to textured peel ply finish is required, Solvay offers release films which are designed to leave a smooth finish. Product Reference A6000 A6000 P3 Thickness 20 μm Width 1.2m (4ft) and 1.5m (5ft) Slit 40mm (1.6”) or 60 mm (2.4”) Length 150m rolls (492ft) 150m rolls (492ft) Weight 80gsm 35gsm Max Use temp 232°C (450°F) 232°C (450°F) Breather Fabric Breather fabric is made from high temperature polyester fiber. Its function is to ensure vacuum is evenly distributed and enable air to be removed from the laminate. It is wrapped around the laminate on top of the peel ply and strips are also positioned on the upper and lower surface of the glass, linked to the vacuum port. Strips of breather fabric can also be positioned on the upper and lower surface of the glass to improve vacuum flow (Fig 2). For high pressure autoclave processing, we recommend a heavyweight coarse fiber material. For oven processing under vacuum only, a lighter weight, more economical material can be used. A range of widths are available. Breather Fabric Product Selector Guide Cure Method Oven Oven or autoclave Product Reference AIRBLEED 100 AIRBLEED 10 Width 75mm (3in), 100mm (4in) and 150mm (6in) 75mm (3in), 100mm (4in) and 150mm (6in) Length 100m (328ft) rolls 50m (164ft) rolls Weight 150gsm 330gsm Max Use Temp 205°C (401°F) 205°C (401°F) Figure 1. Positioning of A100PS peel ply held in place with Solvay blue FLASHTAPE 1, 25mm (1in) wide. Figure 2. Breather fabric is attached to the glass and across the flat surfaces using Solvay blue FLASHTAPE 1, 25mm (1in) wide. Note that the material must extend to the underside of the vacuum port. 4 / Glass LaminationPDF Image | Glass Laminates COMPOSITE MATERIALS
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