11
Buy in Bulk and Save!
Price Per Unit: $14.98
Price Per Box: $13.48
Attention: This product is special order only, delivery of product can take an estimated 1 week or more. Please contact us directly for more information.
Use Sikaflex® PRO for: sealing movement and connection joints on porous substrates like concrete and masonry, both indoors and outdoors.
Sikaflex® PRO is a high-performance, 1-component polyurethane sealant designed for professional use on concrete and masonry facades. Its elastic nature accommodates movement, preventing cracks and leaks. With excellent adhesion to porous materials, it's ideal for both new construction and renovation projects. This sealant provides a durable, weather-resistant seal, ensuring long-lasting protection against environmental elements. Its versatility makes it a go-to solution for various sealing applications.
Key Features of Sikaflex® PRO
- ±25% movement capability, accommodating structural movement and preventing cracks.
- Good workability, ensuring easy application and smooth finishing.
- Excellent adhesion to porous substrates like concrete, brick, and masonry.
- Durable and weather-resistant, providing long-lasting protection against the elements.
Technical Overview
- Chemical Properties: Polyurethane
- Application Temperature Range: +5°C to +40°C (41°F to 104°F)
- Service Temperature Range: -40°C to +70°C (-40°F to 158°F)
- Curing Rate: 3 mm/24 hours at 23°C and 50% RH
Trade Professional Information
- Required Tools: Sealant gun, backing rod, masking tape, tooling agent (e.g., Sika® Tooling Agent N).
- Trade-Specific Tips: Ensure proper joint design with a 2:1 width-to-depth ratio for optimal performance. Use a compatible primer for enhanced adhesion on specific substrates.
- Common Issues and Solutions: Avoid applying in wet conditions; ensure substrates are clean and dry. For uneven joints, use backing rods to maintain consistent sealant depth.
Storage and Shelf Life
- Storage Requirements: Store in dry conditions, protected from direct sunlight, at +5°C to +25°C (41°F to 77°F).
- Shelf Life Information: 12 months from the date of production in undamaged, original packaging.
- Temperature Considerations: Avoid storing outside the recommended temperature range to maintain product quality.
Certifications
- AS/NZS 4020:2018 - Water Potable Approved
- ISO 11600 F 25 LM
- ASTM C 920 Class 25
Frequently Asked Questions About Sikaflex® PRO
Q: How do I prepare the surface before applying Sikaflex® PRO?
A: The surface must be clean, dry, and free from dust, grease, and loose particles. For porous substrates, use Sika® Primer-3 N. For non-porous substrates, use Sika® Aktivator-205 and/or Sika® Primer-215 as needed.
Q: What is the movement capability of Sikaflex® PRO?
A: Sikaflex® PRO has a movement capability of ±25%, allowing it to accommodate structural movements without cracking or losing adhesion. This ensures long-term performance and durability.
Q: Can Sikaflex® PRO be used on different types of substrates?
A: Yes, Sikaflex® PRO is versatile and can be used on various substrates, including concrete, masonry, brick, and some metals with appropriate priming. Always refer to the product data sheet for specific substrate preparation.
Q: How do I clean up uncured Sikaflex® PRO?
A: Use Sika® Remover-208 or Sika® TopClean T to clean uncured sealant from tools and surfaces. Once cured, the material can only be removed mechanically.
Q: What safety precautions should I take when using Sikaflex® PRO?
A: Wear appropriate personal protective equipment (PPE), such as gloves and eye protection. Ensure adequate ventilation during application. Refer to the Safety Data Sheet (SDS) for detailed safety information.
Q: Can Sikaflex® PRO be painted over?
A: Yes, Sikaflex® PRO can be over-painted with most conventional facade coating paint systems. However, paints must first be tested to ensure compatibility. Flexible paints are recommended. Allow sealant to fully cure first.
Q: What is the ideal joint design for Sikaflex® PRO?
A: The joint width should be designed to suit the required movement, with a width-to-depth ratio of 2:1. Joint widths should be between 10 mm and 40 mm. Use backing rods to maintain correct depth.
Use Sikaflex® PRO for:
- Sealing movement joints in concrete and masonry facades.
- Connecting joints between different construction materials.
- General sealing applications in both indoor and outdoor environments.
- Weatherproofing joints around windows and doors.
- Sealing joints in precast concrete elements.
Why Use Sikaflex® PRO:
- Provides durable, elastic seals that accommodate movement.
- Offers excellent adhesion to a wide range of porous substrates.
- Easy to apply and tool, ensuring a professional finish.
- Resistant to weathering, UV radiation, and temperature variations.
- Complies with relevant Australian and international standards.
How to apply Sikaflex® PRO:
- Prepare the substrate: Clean and prime as necessary.
- Insert backing rod: Place a suitable backing rod at the required depth.
- Apply sealant: Extrude Sikaflex® PRO into the joint, ensuring full contact with the sides.
- Tool the joint: Firmly tool the sealant against the joint sides for proper adhesion.
- Remove masking tape: If used, remove tape before skin formation.
- Smooth the surface: Use a compatible tooling agent for a smooth finish.
Sikaflex® PRO limitations:
- Do not use on natural stone, bituminous substrates, or EPDM rubber.
- Not suitable for joints in or around swimming pools or for permanent water immersion.
- Avoid exposing uncured sealant to alcohol-containing products.
- Colour variations may occur due to UV exposure or chemical contact.
Sikaflex® PRO can be used on the following substrates:
- Concrete: Requires Sika® Primer-3 N for optimal adhesion.
- Masonry: Ensure surfaces are clean and primed with Sika® Primer-3 N.
- Brick: Clean thoroughly and prime with Sika® Primer-3 N for best results.
- Aluminium: Clean and pre-treat with Sika® Aktivator-205.
- PVC: Clean and pre-treat with Sika® Primer-215.
- Choosing a selection results in a full page refresh.