Ducati Carbon Fiber Diavel Upper Heat Guard - Heat FoilMDI Carbon Fiber Upper Heat Guard with Heat Foil for Ducati Diavel. All our carbon fiber Upper Heat Guard with Heat Foil are made with an Autoclave process, which uses the highest quality TORAYCA PREPREG carbon fiber fabric from Japan. More information on the manufacturers specifications: Finishes and Materials! Cures at 400 degrees and a pressure of 5Kg cm. One of the most advanced techniques for making composite components is by using PrePreg carbon