Sikaflex® Pro: Sealant for Concrete and Masonry Facades
Sikaflex® Pro is a high-performance 1-component, moisture-curing, and elastic joint sealant specially designed for concrete and masonry facades.
- $304.20
- $304.20
- Unit price
- per
Prices do not include GST
Physical Properties
Composition:
Polyurethane
Packaging:
310 ml cartridge, 12 cartridges per box, 600 ml foil pack, 20 foil packs per box
Shelf life:
12 months
Storage conditions:
Dry conditions, protected from direct sunlight, between +5 °c and +25 °c
Colour:
White, off white, sandstone, pale brown, japan beige, grey, dark grey, brick red, redwood, black, dark amber
Density:
1.25 kg/l approx.
Shore a hardness:
25 approx. (after 28 days)
Secant tensile modulus:
0.35 n/mm² approx. at 100% elongation (23 °c), 0.50 n/mm² approx. at 100% elongation (-20 °c)
Tensile strain at break:
750% approx.
Movement capability:
± 25%
Elastic recovery:
90% approx.
Tear propagation resistance:
5.5 n/mm approx.
Service temperature:
-40 °c to +70 °c
Sag flow:
0 mm (20 mm profile, 50 °c)
Ambient air temperature:
+5 °c to +40 °c, min. 3 °c above dew point temperature
Substrate temperature:
+5 °c to +40 °c
Backing material:
Use closed cell, polyethylene foam backing rods.
Curing rate:
3 mm/24 hours approx. (23 °c / 50% r.h.)
Skinning time:
170 minutes approx. (23 °c / 50% r.h.)
Tooling time:
150 minutes approx. (23 °c / 50% r.h.)
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Shipping & Delivery
**$15.95 + GST for Australia-wide shipping, excluding DG, oversized or long-length items, and bagged items weighing 15kg or above. If your order includes any of these, you will be contacted to arrange additional freight fees
Please note, this product is BOX BUY only.
Sikaflex® Pro is a high-performance 1-component, moisture-curing, and elastic joint sealant specially designed for concrete and masonry facades. Its excellent movement capability and adhesion make it suitable for various sealing applications both indoors and outdoors.
Sikaflex® PRO is a versatile, high-performance, one-component, moisture-curing, elastic joint sealant designed for various construction applications. With a movement capability of ±25%, it is ideal for sealing both static and dynamic joints on porous substrates. Sikaflex® PRO is ready to use, requiring no mixing, and adheres well to a variety of substrates without the need for primers in most cases.
Suitable Substrates
Sikaflex® PRO adheres well to a wide range of porous substrates, including:
- Concrete
- Mortar
- Brick
- Stone
- Wood
- Fibre Cement
For non-porous substrates, please refer to the product data sheet for pretreatment recommendations.
Certifications
- AS/NZS 4020:2018 - Water Potable Approved
- ISO 11600 F 25 LM
- ASTM C 920 class 25
- LEED EQc 4.1
- SCAQMD, Rule 1168
- BAAQMD, Reg. 8, Rule 51
Uses
Sikaflex® PRO is suitable for a wide range of interior and exterior sealing applications, including:
- Movement and connection joints in concrete and masonry facades.
- General sealing applications on porous substrates.
- Perimeter joints around windows and doors.
- Joints in precast concrete elements.
Benefits
- High Movement Capability: Accommodates joint movement up to ±25%, making it suitable for dynamic joints.
- Good Workability: Easy to apply and tool, even in challenging conditions.
- Excellent Adhesion: Bonds well to many porous substrates without priming, saving time and effort.
- Durable and Weather-Resistant: Withstands harsh weather conditions, UV exposure, and ageing, ensuring long-lasting performance.
- Paintable: Compatible with many paint systems after curing, allowing for seamless integration with the surrounding surfaces.
- Water-Resistant: Can be used in damp areas, making it suitable for a variety of applications.
Application Guide
- Surface Preparation: Ensure surfaces are clean, dry, sound, and free from contaminants. For optimal adhesion, follow specific pretreatment guidelines for non-porous substrates (see the product data sheet).
- Backing Rod Installation: Insert a closed-cell polyethylene foam backing rod to control sealant depth and ensure a proper 2:1 width-to-depth ratio.
- Priming (if required): For critical, high-performance applications or non-porous substrates, use Sika® primers as recommended in the product data sheet.
- Sealant Application: Using a sealant gun, extrude Sikaflex® PRO into the joint, ensuring full contact with the sides to avoid air entrapment.
- Tooling: Within the skinning time, tool the sealant firmly against the joint sides for optimal adhesion. Use masking tape for neat lines and a compatible tooling agent (e.g., Sika® Tooling Agent N) for a smooth finish.
- Cleaning: Clean tools and equipment with Sika® Remover-208 or Sika® TopClean T immediately after use.
Limitations
- Not suitable for use on natural stone, bituminous substrates, natural rubber, EPDM rubber, or materials that may bleed oils, plasticisers, or solvents.
- Not recommended for joints under constant water pressure or permanent water immersion.
- Not for use in or around swimming pools.
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