Injection Grout Pump Ratio Adjustable 1:1/2:1/3:1/4:1/5:1 Dual Element! 1350W X 2 Twin Power Premium Epoxy/Polyurethane for Slab Lifiting or Concrect Repair Crack Repair Waterproofing

🎯 Consistent pump strokes = accurate ratios = reliable curing. 👇 Accurate metering is essential for a proper epoxy cure, and WEST SYSTEM® 300 Mini Pumps make that simple. If the stream sputters or spits (especially near the end of a can), stop pumping. Air pockets can throw off the resin-to-hardener ratio and compromise your bond. For the most accurate mix ratios: 🔹 Don’t use epoxy dispensed in an interrupted stream 🔹 Don’t pull up on the pump heads 🔹 Don’t use rapid pump strokes 🔹 Allow t