The invention relates to methods and a novel powdered curable monomer which may be used to manufacture bulk polymers, adhesives and coatings composite materials with high percentage weight inclusions of particulate filler materials, more specifically to fibre reinforced polymer composite materials with high percentage weight inclusions of particulate filler materials. The preferred particulate filler materials are carbon nanotubes. The method according to the invention allows greater than 0.5 wt % of carbon nanotubes, typically greater 10% wt of carbon nanotubes or other high aspect ratio fillers to be readily incorporated in the resin matrix, before being applied to the fibre reinforcing plys.