Melamine Preformed Pipe Insulation and Sheets • Temp. range: -40° to 350°F Pipe insulation is 4-ft. longFiber-free insulation system is produced from ozone-friendly TechLite® melamine foam. Include ship-lap joints and/or relief cuts to accommodate curved surfaces. Preformed sections fit pipes and tubes. Flat sheets can be used for ductwork and large vessels.Meet ASTM C1410; ASTM E84 Low Smoke and Flame 25/50.