These very light, stiff panels have Rohacell 71 or end-grain balsa cores sandwiched between 0.028" thick carbon fiber skins applied at 0/90 degree orientation on both sides. The textured surfaces aid in secondary bonding. Ideal for light weight bulk heads! To improve peel strength, finish edges of your parts with filled epoxy up to 0.125" thick. If you are bolting through the panel, end-grain balsa cores with reinforcement are recommended. Custom sandwich panels are available. Call technical support at 661-823-0108 for assistance and/or quotation. Actual dimensions may vary. MSDS available upon request.