ACTFLEX MS PRO
moisture-curing modified polyurethane joint sealant
One-component, moisture-curing modified polyurethane joint sealant offering superior adhesion, flexibility, and UV resistance for construction and waterproofing joints.
ACTFLEX MS PRO is a one-component, moisture-curing modified polyurethane adhesive joint sealant formulated for high performance across construction and waterproofing applications. It offers excellent adhesion to a wide range of substrates including concrete, masonry, metals, glass, tiles, and timber.
It is solvent-free, isocyanate-free, and non-staining, ensuring clean finishes with no bubbling or shrinkage. Compliant with ASTM C920 Class 50 and ISO 11600 (F Class 25 LM), ACTFLEX MS PRO is suitable for both horizontal and vertical joints.
specs
Technical Specifications.
Waterproof Time:
After full cure (24–48 hours, depending on temperature and humidity).
Coverage:
Approx. 10–12 linear meters per 600 mL sausage (10 mm x 10 mm bead).
Usable period after opening:
Single-component; ready to use directly from cartridge.
Touch dry time minimum:
Tack Free: 15 minutes @ 25°C
Cure Speed: 2.0 mm/day @ 25°C
Full Cure: 48–72 hours (depending on depth)
Vapor Pressure @ 25oC:
Low vapor permeability; forms an impermeable, elastic film.
Application Temperature:
+5°C to +35°C
Shelf Life:
10 months (unopened, stored between 10–25°C, <50% RH).
Membrane
Classification:
Class 3 Elastomeric Sealant
Colour:
Black, grey, white
Tack Free Time:
15 minutes @ 25°C
Recoat Time:
After full cure (24–48 hours)
Elongation at Break:
350% @ break (GB/T 528)
Recommended
Thickness:
Recommended joint width: 5–35 mm (2:1 width-to-depth ratio).
Chemical
Resistant:
Good resistance to mild acids, alkalis, and UV radiation.
Full Cure:
2 mm per day (approx. 48–72 hours for 10 mm depth)
Chemical Base:
Modified polyurethane (MS polymer).
Cure Mechanism:
Moisture-curing.
Tear Propagation
Resistance:
≥6 N/mm (GB/T 529).
Service
Temperature:
-10°C to +65°C
Solid Contents:
99%.
Bond Strength:
Excellent adhesion to most substrates without primer.
Density:
1.63g/cc
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 Approx. 10–12 linear meters per 600 mL sausage (10 mm x 10 mm bead).
Required:
NaN Lr
3d
Application Model
