ProBalsa is a high quality organic core material made from end grain balsa wood. The end grain, micro honeycomb structure offers exceptional shear and compressive strength. In addition ProBalsa offers good fatigue properties, high thermal and sound insulation and low FST (fire, smoke & toxicity) properties. ProBalsa is best suited for dynamic structures where performance and efficiency are important. All ProBalsa core materials are particularly easy to work using conventional woodworking tools. It can be drilled, milled, turned and sawn to close tolerances. ProBalsa is compatible with most resin and manufacturing processes. It is also suitable for elevated temperature cure prepreg systems.