ACTFLEX PU200
structural concrete crack sealing
single-component, hydrophobic polyurethane injection resin
ACTFLEX PU200 is a single-component, hydrophobic polyurethane injection resin designed for structural concrete crack sealing and leak remediation. Upon injection, it reacts with water to form a rapid-expanding, closed-cell foam structure, effectively blocking water ingress. This solvent-free formulation emits no harsh odors and exhibits excellent penetration capabilities. It features fast reaction kinetics, ensuring efficient sealing, with no shrinkage or post-application dimensional instability. The cured material maintains high durability and long-term resistance to moisture, making it ideal for applications in below-grade structures, tunnels, basements, and other water-exposed concrete elements.
specs
Technical Specifications.
Waterproof Time:
Immediate after reaction with water
Coverage:
0.6 (Foam expansion ratio with water)
Usable period after opening:
Immediately after injection
Touch dry time minimum:
Foaming time: 180–360 seconds
Vapor Pressure @ 25oC:
Closed-cell foam structure (water-blocking)
Application Temperature:
>10°C
Shelf Life:
12 months (when stored properly)
Membrane
Classification:
Hydrophobic PU Injection Resin
Colour:
Light Brown
Tack Free Time:
Recoat Time:
Elongation at Break:
Thick Sections: >100%
Thin Sections: >250%
Recommended
Thickness:
Injection resin (crack-dependent)
Chemical
Resistant:
Yes – resistant to harsh environments
Full Cure:
Post expansion foam cure after reaction (rapid set)
Chemical Base:
Hydrophobic Polyurethane
Cure Mechanism:
Moisture-activated expansion reaction
Tear Propagation
Resistance:
>2.28 MPa
Service
Temperature:
Solid Contents:
Bond Strength:
>2.28 MPa
Density:
1.12-1.2 g/cm³
Compressive
Strength:
Flow:
Acceptance of Cyclic Movement:
Viscosity @25°C: 500–600 mPa·s
Dimensional Stability:
Viscosity @25°C: 500–600 mPa·s
Control Elongation at Break:
Viscosity @25°C: 500–600 mPa·s
Control Tensile Strength:
Viscosity @25°C: 500–600 mPa·s
Water Immersion Elongation at Break:
Viscosity @25°C: 500–600 mPa·s
Water Immersion Tensile Strength:
Viscosity @25°C: 500–600 mPa·s
Detergent Immersion Elongation at Break:
Viscosity @25°C: 500–600 mPa·s
Detergent Immersion Tensile Strength:
Viscosity @25°C: 500–600 mPa·s
Heat Aging Elongation at Break:
Viscosity @25°C: 500–600 mPa·s
Heat Aging Tensile Strength:
Viscosity @25°C: 500–600 mPa·s
Field Seam Strength:
Viscosity @25°C: 500–600 mPa·s
Temperature Resistance:
Water Vapour Transmission
Viscosity @25°C: 500–600 mPa·s
Water Vapour Transmission:
Viscosity @25°C: 500–600 mPa·s
Application Method:
Viscosity @25°C: 500–600 mPa·s
VOC Content:
Viscosity @25°C: 500–600 mPa·s
Mixing Ratio:
Viscosity @25°C: 500–600 mPa·s
Viscosity:
Viscosity @25°C: 500–600 mPa·s
Storage Temperature:
Viscosity @25°C: 500–600 mPa·s
Flash Point:
Viscosity @25°C: 500–600 mPa·s
UV Resistance:
Viscosity @25°C: 500–600 mPa·s
Hydrostatic Pressure Resistance:
Viscosity @25°C: 500–600 mPa·s
Water Vapour Transmission Rate (WVTR):
Viscosity @25°C: 500–600 mPa·s
Abrasion Resistance:
Viscosity @25°C: 500–600 mPa·s
Bacterial/Algae Resistance:
Viscosity @25°C: 500–600 mPa·s
Application Time:
Viscosity @25°C: 500–600 mPa·s
Environmental Impact:
Viscosity @25°C: 500–600 mPa·s
Packaging Sizes:
Viscosity @25°C: 500–600 mPa·s
Hardness:
Viscosity @25°C: 500–600 mPa·s
Adhesion to Substrate:
Viscosity @25°C: 500–600 mPa·s
Appearance After Curing:
Viscosity @25°C: 500–600 mPa·s
Clean-up Requirements:
Viscosity @25°C: 500–600 mPa·s
Certification Standards:
Viscosity @25°C: 500–600 mPa·s
calculator
Coverage Calculator.
Based on a manufacturers average recommended coverage of 0.6 (Foam expansion ratio with water)
Required:
167 Lr
3d
Application Model
