L&L Products Introduces InsituCore Expandable Foam and Toughened T-Link F-620 Film for Composites Bonding
L&L Products launched InsituCore, a heat-activated expandable foam core that conforms and consolidates reinforcing layers into 3D net-shape parts using closed-cavity tooling, eliminating foam machining and secondary adhesives. The company also introduced Toughened T-Link F-620, a 1-millimeter thermoplastic film that enables faster bonding to metals, composites, and hybrid materials, and when used as an interleaf layer in carbon fiber/epoxy laminates, testing showed improved ductility and a 66% increase in compression-after-impact.



