ACTFLEX SAR
Self-Adhesive Membrane
Cold-applied waterproofing sheet with strong adhesion, anti-fracture performance and instant sealing.
ACTFLEX SAR is a self-adhesive, fibre-reinforced butyl rubber sheet membrane developed for waterproofing internal and external floor surfaces. It consists of a high-tack butyl rubber backing laminated to a non-woven fabric facing, providing resistance to substrate movement, flexing and vibration. The membrane accepts direct tiling, screeds and toppings and may be integrated with compatible FORSPEC ACTFLEX liquid membranes as part of a hybrid waterproofing system. It is suitable for bathrooms, laundries, balconies, decks, podiums, terraces and anti-fracture detailing over cracked or unstable concrete substrates.
specs
Technical Specifications.
Waterproof Time:
Instant seal upon application
Coverage:
One roll covers up to 10 m² before allowing for minimum 50 mm overlaps, cuts, detailing and wastage.
Usable period after opening:
No pot life. Position the sheet before removing the release liner; once the butyl face contacts the substrate, it will not reposition cleanly.
Touch dry time minimum:
No cure period. Light foot traffic is permitted immediately after the sheet is fully rolled down.
Vapor Pressure @ 25oC:
Water vapour transmission: <0.1–0.2 g/24 hr/m²
Application Temperature:
Approximately 5°C–35°C ambient and substrate temperature
Shelf Life:
Best used within 12 months of purchase when stored correctly
Membrane
Classification:
Class II or III, AS 4654.1-style classification
Colour:
Grey butyl rubber backing with non-woven fabric facing
Tack Free Time:
Recoat Time:
Primer overcoat window before laying the sheet: per the primer TDS. FORSPEC liquid membrane detailing: immediately; liquid membrane cure times are per its TDS.
Elongation at Break:
Approximately 50%–300%, depending on the fabric reinforcement level
Recommended
Thickness:
1.0–1.5 mm
Chemical
Resistant:
Full Cure:
No cure period.
Chemical Base:
Fibre-reinforced butyl rubber with non-woven fabric facing
Cure Mechanism:
Pressure-sensitive self-adhesive bond
Tear Propagation
Resistance:
Strong tear and rupture resistance; numerical value not specified
Service
Temperature:
Approximately -30°C to +80°C for the butyl compound
Solid Contents:
Solvent-free; contains no volatile solvents.
Bond Strength:
Peel adhesion to primed concrete: ≥ 1.5 N/mm.
Density:
Approximately 1.3–1.6 g/cm³
Compressive
Strength:
Flow:
Acceptance of Cyclic Movement:
Dimensional Stability:
Control Elongation at Break:
Control Tensile Strength:
Water Immersion Elongation at Break:
Water Immersion Tensile Strength:
Detergent Immersion Elongation at Break:
Detergent Immersion Tensile Strength:
Heat Aging Elongation at Break:
Heat Aging Tensile Strength:
Field Seam Strength:
Temperature Resistance:
Water Vapour Transmission
Water Vapour Transmission:
Application Method:
VOC Content:
Mixing Ratio:
Viscosity:
Storage Temperature:
Flash Point:
UV Resistance:
Hydrostatic Pressure Resistance:
Water Vapour Transmission Rate (WVTR):
Abrasion Resistance:
Bacterial/Algae Resistance:
Application Time:
Environmental Impact:
Packaging Sizes:
Hardness:
Adhesion to Substrate:
Appearance After Curing:
Clean-up Requirements:
Certification Standards:
calculator
Coverage Calculator.
Based on a manufacturers average recommended coverage of One roll covers up to 10 m² before allowing for minimum 50 mm overlaps, cuts, detailing and wastage.
Required:
10 Lr
pdfs
Product Documentation.
Safety Data Sheet 1 (PDF Download)
Safety Data Sheet 2 (PDF Download)
Compliance Testing Report 1 (PDF Download)
Compliance Testing Report 2 (PDF Download)
Compliance Testing Report 3 (PDF Download)
Low VOC Certificate (PDF Download)
Product How To Guide (PDF Download)
3d
Application Model
