This video shows the moulding of a 3 metre dinghy using the VRTM process (L-RTM or RTM Light) This method allows the moulding of integral foam cores and results in a smooth moulded internal finish and consistently accurate laminate thickness. You can compare this process with exactly the same dinghy being moulded by the resin infusion process if you follow this link: https://www.youtube.com/watch?v=Oz1rgpn8el0