ACTFLEX PU500
Hydrophilic polyurethane injection resin
reacts with water to form a flexible, open-cell foam structure
ACTFLEX PU 500 is a single-component, hydrophilic polyurethane injection resin designed for sealing leaks in structural joints subject to movement and vibration. The formulation exhibits a rapid response, adapting to varying moisture levels by forming a resilient seal with minimal shrinkage.
specs
Technical Specifications.
Waterproof Time:
Immediate water cut-off upon reaction (10–60 seconds under active leak)
Coverage:
Approx. 0.6–1.2 kg per linear metre
Usable period after opening:
20–30 minutes at 23°C (in sealed container, moisture-free)
Touch dry time minimum:
Surface set within 5–15 minutes (moisture dependent)
Vapor Pressure @ 25oC:
Low after full cure (forms closed cell gel structure)
Application Temperature:
>10°C
Shelf Life:
12 months
Membrane
Classification:
Colour:
Light Brown
Tack Free Time:
15–30 minutes (depending on moisture exposure)
Recoat Time:
Elongation at Break:
>130%
Recommended
Thickness:
10 mm
Chemical
Resistant:
Yes – resistant to dilute acids, alkalis, sewage, groundwater contaminants
Full Cure:
Chemical Base:
Hydrophilic polyurethane prepolymer
Cure Mechanism:
Moisture activated expansion and polymer cross-linking
Tear Propagation
Resistance:
15.40 MPa
Service
Temperature:
-20°C to +70°C
Solid Contents:
100%
Bond Strength:
1.18 MPa (to damp concrete)
Density:
1.06–1.10 g/cm³ (liquid state)
Compressive
Strength:
25–35 MPa (confined condition)
Flow:
25–35 MPa (confined condition)
Acceptance of Cyclic Movement:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Dimensional Stability:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Control Elongation at Break:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Control Tensile Strength:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Water Immersion Elongation at Break:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Water Immersion Tensile Strength:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Detergent Immersion Elongation at Break:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Detergent Immersion Tensile Strength:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Heat Aging Elongation at Break:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Heat Aging Tensile Strength:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Field Seam Strength:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Temperature Resistance:
Water Vapour Transmission
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Water Vapour Transmission:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Application Method:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
VOC Content:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Mixing Ratio:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Viscosity:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Storage Temperature:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Flash Point:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
UV Resistance:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Hydrostatic Pressure Resistance:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Water Vapour Transmission Rate (WVTR):
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Abrasion Resistance:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Bacterial/Algae Resistance:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Application Time:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Environmental Impact:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Packaging Sizes:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Hardness:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Adhesion to Substrate:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Appearance After Curing:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Clean-up Requirements:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
Certification Standards:
Approx. 200–400 mPa·s at 23°C (low viscosity for crack penetration)
calculator
Coverage Calculator.
Based on a manufacturers average recommended coverage of Approx. 0.6–1.2 kg per linear metre
Required:
NaN Lr
3d
Application Model
