ACTFLEX 5000S
self-adhesive butynol
Advanced self-adhesive butynol sheet membrane with a thermal-chemical reactive sand
ACTFLEX 5000S is a high-performance self-adhesive butynol waterproofing membrane designed for structural and below-ground applications. Its advanced reactive sand top surface chemically bonds to freshly poured concrete or heated mortar toppings, creating a permanent waterproof barrier with mechanical and chemical fusion. Suitable for basements, retaining walls, raft slabs, tunnels, lift pits, podium decks, and foundation walls. Engineered for pre-applied use where bonded topping slabs are required, ensuring long-term integrity and resistance to hydrostatic pressure.
specs
Technical Specifications.
Waterproof Time:
Immediate upon proper installation
Coverage:
20 m² per roll (1 m × 20 m)
Usable period after opening:
Can receive topping slab immediately after installation
Touch dry time minimum:
Primer dry time before membrane: 30–60 min (depends on primer used & conditions)
Vapor Pressure @ 25oC:
Impermeable at 0.3 MPa for 120 min
Application Temperature:
+5°C to +45°C
Shelf Life:
12 months (stored upright, dry, shaded)
Membrane
Classification:
Colour:
Red with sanded top surface
Tack Free Time:
Recoat Time:
Elongation at Break:
≥350%
Recommended
Thickness:
~1.5 mm (sheet thickness)
Chemical
Resistant:
Resistant to oils, salts, and groundwater chemicals
Full Cure:
Bond achieved at time of concrete pour (thermal-chemical activation)
Chemical Base:
Butynol rubber with thermal-reactive sand
Cure Mechanism:
Self-adhesive bonding + chemical fusion with fresh concrete/mortar
Tear Propagation
Resistance:
Nail shank tear strength ≥300 N
Service
Temperature:
-25°C to +80°C
Solid Contents:
Bond Strength:
Concrete to membrane: 0.9–1.3 MPa
Top layer to topping slab: 1.0–1.5 MPa
Density:
Approx. 1.4 g/cm³ (butynol base with sand layer)
Compressive
Strength:
Supports static load up to 20 kg, no seepage
Flow:
Supports static load up to 20 kg, no seepage
Acceptance of Cyclic Movement:
No slippage >2 mm at 80°C, 2h
Dimensional Stability:
No slippage >2 mm at 80°C, 2h
Control Elongation at Break:
No slippage >2 mm at 80°C, 2h
Control Tensile Strength:
No slippage >2 mm at 80°C, 2h
Water Immersion Elongation at Break:
No slippage >2 mm at 80°C, 2h
Water Immersion Tensile Strength:
No slippage >2 mm at 80°C, 2h
Detergent Immersion Elongation at Break:
No slippage >2 mm at 80°C, 2h
Detergent Immersion Tensile Strength:
No slippage >2 mm at 80°C, 2h
Heat Aging Elongation at Break:
No slippage >2 mm at 80°C, 2h
Heat Aging Tensile Strength:
No slippage >2 mm at 80°C, 2h
Field Seam Strength:
No slippage >2 mm at 80°C, 2h
Temperature Resistance:
Water Vapour Transmission
No slippage >2 mm at 80°C, 2h
Water Vapour Transmission:
No slippage >2 mm at 80°C, 2h
Application Method:
No slippage >2 mm at 80°C, 2h
VOC Content:
No slippage >2 mm at 80°C, 2h
Mixing Ratio:
No slippage >2 mm at 80°C, 2h
Viscosity:
No slippage >2 mm at 80°C, 2h
Storage Temperature:
No slippage >2 mm at 80°C, 2h
Flash Point:
No slippage >2 mm at 80°C, 2h
UV Resistance:
No slippage >2 mm at 80°C, 2h
Hydrostatic Pressure Resistance:
No slippage >2 mm at 80°C, 2h
Water Vapour Transmission Rate (WVTR):
No slippage >2 mm at 80°C, 2h
Abrasion Resistance:
No slippage >2 mm at 80°C, 2h
Bacterial/Algae Resistance:
No slippage >2 mm at 80°C, 2h
Application Time:
No slippage >2 mm at 80°C, 2h
Environmental Impact:
No slippage >2 mm at 80°C, 2h
Packaging Sizes:
No slippage >2 mm at 80°C, 2h
Hardness:
No slippage >2 mm at 80°C, 2h
Adhesion to Substrate:
No slippage >2 mm at 80°C, 2h
Appearance After Curing:
No slippage >2 mm at 80°C, 2h
Clean-up Requirements:
No slippage >2 mm at 80°C, 2h
Certification Standards:
No slippage >2 mm at 80°C, 2h
calculator
Coverage Calculator.
Based on a manufacturers average recommended coverage of 20 m² per roll (1 m × 20 m)
Required:
NaN Lr
3d
Application Model
