Perforated PVC Foam Core sheets are engineered to optimize resin distribution and mechanical interlocking in sandwich panel composites. By creating controlled vertical channels through the closed-cell structure, they ensure superior wet-out, minimize voids, accelerate infusion cycles, and improve overall bond strength. This article examines the science behind different perforation patterns, important performance trade-offs, practical implementation guidance, and proven real-world performance across marine, wind energy, automotive, and drone applications.
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