Today's video is about resin infusion processing, which is a fascinating manufacturing technique that is widely spread in the composites industry!

Resin infusion is a sophisticated technique for manufacturing high performance, void-free composites even on large or complicated molds. In this manufacturing process, reinforcement is laid into the mold ‘‘dry’’, i.e. without any resin, and then enclosed in a specially configured stack of bagging materials (such as peel-ply, infusion mesh, and bagging film) before being subjected to vacuum pressure using a vacuum pump.

Once all the air has been removed from the bag and the reinforcement has been fully compressed under this pressure, liquid resin (mixed with hardener) is introduced to the reinforcement through a pipe which then infuses through the reinforcement under the vacuum pressure. Once the resin has fully infused through the reinforcement, the supply of resin is cut off and the resin is left to cure, still under vacuum pressure.

This video shows a Volvo Ocean Race boat's hull mold being infused in late 2012! The infusion process is best suited for time lapses! Amazing isn't it?

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