ACTFLEX EP 250
Two-component, water-based epoxy
Two-component, water-based epoxy polyamide moisture barrier
ACTFLEX EP 250 is a two-component waterborne epoxy polyamide coating engineered for superior moisture protection and substrate reinforcement. It forms an impermeable barrier against water ingress, mitigates rising damp, prevents efflorescence, and withstands hydrostatic pressure up to 250 kPa (25-metre head of water). It can act as both a primer and sealer for concrete, masonry, and cementitious surfaces, ensuring excellent adhesion for subsequent coatings or membranes.
Independently certified for use with potable water, EP 250 complies with AS4020 and SS375, making it suitable for potable water storage, tunnels, basements, and below-grade applications. It also meets Green Building Council IEQ-13, IEQ-11 requirements and is non-flammable, low VOC, and odourless.
specs
Technical Specifications.
Waterproof Time:
24 hours @ 25°C / 50% RH before recoating or waterproofing.
Coverage:
1.5 m²/L (total for 2 coats @ 300 μm WFT per coat).
Usable period after opening:
2 hours pot life @ 25°C; 1 hour @ 35°C.
Touch dry time minimum:
Recoat: 4 hours @ 25°C, 50% RH
Foot Traffic: 24 hours @ 25°C
Full Cure: 7 days @ 25°C, 50% RH
Vapor Pressure @ 25oC:
Excellent hydrostatic moisture barrier; not vapor-permeable.
Application Temperature:
10°C-26°C
Shelf Life:
24 months
Membrane
Classification:
N/A
Colour:
Grey, semi-gloss finish (matt over time).
Tack Free Time:
4 hours at 25°C and 50% R.H.
Recoat Time:
4 hours minimum; up to 5 days maximum for tiling
Elongation at Break:
Recommended
Thickness:
150 μm DFT per coat
300 μm DFT (total, 2 coats)
Chemical
Resistant:
Excellent resistance to mild chemicals, efflorescence, and moisture.
Full Cure:
7 days @ 25°C / 50% RH
Chemical Base:
Water-based epoxy polyamide
Cure Mechanism:
Chemical crosslinking (epoxy + polyamide reaction)
Tear Propagation
Resistance:
Rigid, non-elastomeric film
Service
Temperature:
-10°C to +65°C
Solid Contents:
44%
Bond Strength:
Excellent to old, new, and green concrete (primer-grade)
Density:
1.25 g/cm³
Compressive
Strength:
High (structural epoxy binder-grade)
Flow:
High (structural epoxy binder-grade)
Acceptance of Cyclic Movement:
Brush, roller, or spray grade
Dimensional Stability:
Brush, roller, or spray grade
Control Elongation at Break:
Brush, roller, or spray grade
Control Tensile Strength:
Brush, roller, or spray grade
Water Immersion Elongation at Break:
Brush, roller, or spray grade
Water Immersion Tensile Strength:
Brush, roller, or spray grade
Detergent Immersion Elongation at Break:
Brush, roller, or spray grade
Detergent Immersion Tensile Strength:
Brush, roller, or spray grade
Heat Aging Elongation at Break:
Brush, roller, or spray grade
Heat Aging Tensile Strength:
Brush, roller, or spray grade
Field Seam Strength:
Brush, roller, or spray grade
Temperature Resistance:
Water Vapour Transmission
Brush, roller, or spray grade
Water Vapour Transmission:
Brush, roller, or spray grade
Application Method:
Brush, roller, or spray grade
VOC Content:
Brush, roller, or spray grade
Mixing Ratio:
Brush, roller, or spray grade
Viscosity:
Brush, roller, or spray grade
Storage Temperature:
Brush, roller, or spray grade
Flash Point:
Brush, roller, or spray grade
UV Resistance:
Brush, roller, or spray grade
Hydrostatic Pressure Resistance:
Brush, roller, or spray grade
Water Vapour Transmission Rate (WVTR):
Brush, roller, or spray grade
Abrasion Resistance:
Brush, roller, or spray grade
Bacterial/Algae Resistance:
Brush, roller, or spray grade
Application Time:
Brush, roller, or spray grade
Environmental Impact:
Brush, roller, or spray grade
Packaging Sizes:
Brush, roller, or spray grade
Hardness:
Brush, roller, or spray grade
Adhesion to Substrate:
Brush, roller, or spray grade
Appearance After Curing:
Brush, roller, or spray grade
Clean-up Requirements:
Brush, roller, or spray grade
Certification Standards:
Brush, roller, or spray grade
calculator
Coverage Calculator.
Based on a manufacturers average recommended coverage of 1.5 m²/L (total for 2 coats @ 300 μm WFT per coat).
Required:
67 Lr
3d
Application Model
