Profile: Renfert USA markets dental products. Our twister spatula is an ideal tool for all bowl sizes, which allow the complete removal of the material from the bowl. The edges are rounded off to prevent damage to the bowl & the handle is ergonomically formed. Our art mix is a new, functionally elegant solution for acrylic veneering technique. The material is protected from premature curing by the light-absorbent palette. The special surface texture reduces adhesion and allows for easier handling of acrylics.