BONASIL A+ Heavy is a high viscosity vinyl polysiloxane (VPS) preliminary impression material with excellent carving properties. The advanced surface technology (extra hydrophilic) along with the exceptional thixotropic characteristics makes Bonasil A+ Heavy an ideal impression tool in the hands of all dentists and especially the implantologists. ISO 4823 / ADA No.19, Type 1 – heavy bodied consistency Indications: Single step impression technique Double step impression technique Crown/bridge work Inlay and onlay impressions Functional impressions Characteristics-Advantages: Ideal working time/setting time ratio Thixotropic Exceptional dimensional stability Excellent elastic properties Remarkable tear strength Extra hydrophilic Void free Non-sticky