Sika Injection-126 MY PU foam leak-sealing injection

A one-component, semi-flexible, hydrophobic polyurethane injection grout. When it meets water it starts to foam and expand within 2–3 minutes, which stops the leak quickly. Use it to seal leaking cracks, movement joints and pipe penetrations in basements and concrete below the water table, and to fill honeycombs, voids and cavities, where the water pressure is low. It seals water-bearing cracks and voids wider than 0.3 mm and can be used at temperatures as low as +10 °C.

Key specs

• Pack: 20 kg pail; transparent brown liquid
• Expansion 2500 % or more, depending on the amount of water present
• Gel time 240–300 seconds
• Density 1.0–1.1 g/cm³; viscosity 450–600 mPa·s; 100 % solids
• Clean tools with organic solvents (flammable, take care)
• Store sealed, dry, +5 °C to +30 °C, away from sun, frost and fire; shelf life 6 months