3D Printing, Elastomers, Silicone COPSIL 3D 4050 REFORMULATED SILICONES RTV-2 high hardness skin contact 3D printing silicone for additive manufacturing. See Product Compare Quick View Add to Wishlist Product added! View Wishlist View Wishlist Show Information Materials: Elastomers Chemistry: Silicone Processes: 3D Printing Hardness: 40 Shore A Mix viscosity at 20°C: Thixotrope Ratio: 100 / 100 Silicone Type: RTV Packaging: KIT 2 x 50 ml, KIT 2 x 850 ml