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Products > Waterproofing & Protective Coatings > Hydrophobic PU Foam Grout

Hydrophobic PU Foam Grout

Fast-reaction hydrophobic polyurethane injection resin for rapid water stopping in tunnels, underground structures, basements, and concrete cracks.

Cracked concrete prepared for PU injection water stopping

Who Uses This Product

Tunnel waterproofing contractors

Active leak stopping during construction and repair.

Emergency leak repair

Fast foaming response for urgent leaks.

Mining infrastructure

Water control in underground works.

Basement waterproofing

Concrete crack injection for active seepage.

Technical Specifications

Reaction time30 seconds to 5 minutes
Foam expansion ratio20-30x
Viscosity200-800 mPa·s
Density (foamed)60-150 kg/m³
BondingExcellent to wet substrates
Compressive strength5-15 MPa

Specifications shown represent typical ranges. Specific product variants may differ — please request the relevant TDS for exact values.

Quality Standards & Benchmarking

Benchmarked to BASF MasterRoc / Sika InjectoFlex specifications with comparable technical performance and a more cost-effective overall package.

Packaging & Logistics

Standard packaging

25kg pails or 200kg drums

Minimum order quantity

500kg trial / Container: 18-20 tons

Shipping

Ex-works Shanghai or FOB Yangshan Port. Typical transit to Southeast Asia 7-14 days, Middle East 18-22 days, Latin America 40-55 days.

Technical Service Commitment

TDS & SDS documentation in English, Chinese, Spanish, and Russian

Application support from formulation chemists

Custom formulation adjustments available

Video training and on-site consultation for qualified accounts

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