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Use Sikaflex® PRO for: Sealing movement and connection joints on porous substrates, such as concrete and masonry facades.
Please note, this product is BOX BUY only.
Sikaflex® PRO is a reliable and versatile sealant designed for a variety of applications, including movement and connection joints on concrete and masonry facades. This one-component, moisture-curing sealant offers excellent adhesion to various substrates, good workability, and a movement capability of ±25%, ensuring a durable and weather-resistant seal.
Key Features
- One-component, moisture-curing sealant
- Elastic joint sealant
- Excellent adhesion to various substrates
- Good workability
- Movement capability of ±25%
- Suitable for indoor and outdoor applications
Technical Overview
- Chemical Properties: Polyurethane
- Application Temperature Range: +5 °C to +40 °C
- Service Temperature: -40 °C to +70 °C
Trade Professional Information
- Required Tools: Sealant gun, closed cell polyethylene foam backing rods, Sika® Aktivator-205 (for non-porous substrates), Sika® Primer-3 N (for porous substrates), Sika® Tooling Agent N, Sika® Remover-208, Sika® TopClean T
- Trade-Specific Tips: Ensure surfaces are clean, dry, and properly prepared before application. Use appropriate primers and activators for optimal adhesion. Tool the sealant firmly against joint sides to ensure proper adhesion and avoid air entrapment. Use masking tape for neat lines. Can be overpainted with most conventional facade coating paint systems after fully cured.
- Common Issues and Solutions: Discoloration may occur due to chemical exposure, high temperatures, or UV radiation. This is purely aesthetic and does not affect performance. Avoid using tooling agents containing solvents. Do not use on natural stone, bituminous substrates, natural rubber, EPDM rubber, or building materials that might bleed oils, plasticizers, or solvents.
Storage and Shelf Life
- Storage Requirements: Store in dry conditions, protected from direct sunlight, between +5 °C and +25 °C.
- Shelf Life Information: 12 months from the date of production
- Temperature Considerations: Store between +5 °C and +25 °C.
Certifications
- AS/NZS 4020:2018 - Water Potable Approved
- ISO 11600 F 25 LM
- ASTM C 920 class 25
Uses
- Movement and connection joints on concrete and masonry facades
- Indoor and outdoor sealing applications
- Sealing around windows and doors
- Connection joints between different building materials
Benefits
- Durable and weather-resistant seal
- Excellent adhesion to various substrates
- Good workability
- High movement capability
- Can be overpainted
Application Guide
- Ensure surfaces are clean, dry, and properly prepared.
- Insert a suitable backing rod to the required depth.
- Apply any necessary primer or activator.
- Extrude Sikaflex® PRO into the joint, ensuring full contact with joint sides and avoiding air entrapment.
- Tool the sealant firmly against the joint sides.
- Use masking tape for neat lines and remove it within the skin time.
- Smooth the joint surfaces with a compatible tooling agent.
Limitations
- Do not use on natural stone.
- Do not use on bituminous substrates, natural rubber, EPDM rubber, or building materials that might bleed oils, plasticizers, or solvents.
- Do not use to seal joints in and around swimming pools.
- Do not use for joints under water pressure or for permanent water immersion.
- Do not expose uncured Sikaflex® PRO to alcohol-containing products.
- Refer to the Safety Data Sheet for complete safety information.
Sikaflex® PRO is suitable for the following Substrates:
- Concrete
- Masonry
- Metals (aluminium, anodised aluminium, stainless steel, galvanised steel, powder coated metals)
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