Tufnol is made from layers of reinforcement – paper, woven cotton fabric or woven glass cloth – impregnated with a thermosetting resin, usually phenolic or epoxy, then stacked and cured under heat and high pressure into a solid sheet, rod or tube. The reinforcement and resin chosen set the grade’s properties, from economical electrical insulation to tough mechanical parts. Explore the cotton fabric grades on the fabric laminates page.