With EXA VPS impression materials you get handling, accuracy, thixotropicity, elastic recovery, stackability and pourability that are second to none. The high hydrophilicity of EXA VPS materials means they flow uniformly, eliminate voids and capture details more precisely. EXA materials offer virtually no shrinkage (less than 0.2% in 24 hours), and are so dimensionally stable that an accurate model can be poured up to two weeks after the impression has been taken. No matter what type of impression is being taken, EXA materials set quickly, flow well, and have the elastic recovery characteristics and tear strength that make the first impression a lasting impression.