Mould Release Tapes for Composite Moulding
Manufacturing large parts with composite moulds is complex, cost- and labour-intensive, and companies worldwide need solutions to increase the efficiency of production processes. Saint-Gobain® mould release tapes are key components to ensure longer fabric life and fewer defects in composite moulding by creating smooth, non-stick surfaces while being conformable and temperature-resistant. They help to minimise the number of seams in a mould, allow for clean release, leave no residue, and can be designed to create a textured surface finish on the composite part to minimise post-production efforts, deliver cost savings, and extend material lifespan.
PTFE glass cloth laminate tape
Our CHR® PTFE Glass Laminate Tapes are proprietary products that, owing to a unique manufacturing process, are free from cracks and pinholes on the surface. The absence of surface flaws and a greater PTFE thickness above the fibreglass layer give the fabric a longer service life and result in fewer defects imprinted onto composite parts. In some applications, the tape can last twenty times as long as lower-grade options.
PTFE film tape
CHR PTFE Film Tapes are designed to help minimise the number of seams in a mould for large parts. PTFE film tapes help to extend the life of the mould by preventing any resin material from penetrating through the seam joint. They facilitate release of the part from the mould without creating any imperfection in the finished part, offer good mechanical strength at the joint and have excellent chemical resistance to resin material.
Mould Release Tapes Material Selection Guide
| Adhesive | 0.075 mm | 0.127 mm | 0.152 mm | 0.250 mm | Short-Term Temp. Rating (1–5 hours) °C | Product Features |
| Silicone | – | SGB6-4 | SGC6-6 | SGB6-10 | 310°C | Widest available product in the market at 1219 mm width |
| Adhesive | .075 mm | .127 mm | .152 mm | .250 mm | Short term Temp. Rating (1-5 hours) °C | Product Features |
| Silicone | - | 2045-5 | - | - | 310°C | Widest available product in the market 1219 mm width |
