ValuLine® VPS impression material is a super hydrophilic impression material that offers enhanced physical and mechanical properties. Economically priced, this a-silicone material offers superior wetting agents for dimensional ability and excellent tear strength. Fast Set VPS Impression Material. Mint. Working Time: 1 minute Setting Time: 3:00 minutes Includes: (1) 300ml Base (1) 300ml Catalyst (2) Scoops Gluten Free Soy Free