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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.
Please note, product is BOX BUY only.
Use Sikaflex® Construction AP for: Sealing movement and
connection joints in porous substrates, general indoor and outdoor sealing.
Sikaflex® Construction AP is a versatile, 1-component polyurethane sealant designed for a wide range of construction applications. Its elastic nature accommodates movement in joints, preventing cracks and leaks. This sealant is ideal for porous substrates like concrete, brick, and masonry, offering strong adhesion and long-lasting durability. It's ready to use, requiring no mixing, and can be painted over, making it a practical choice for both professional and DIY projects.
Key Features of Sikaflex® Construction AP
- High Movement Capability: Accommodates joint movement up to ±25%, preventing cracks and maintaining a secure seal in dynamic structures.
- Excellent Adhesion: Bonds strongly to porous substrates like concrete and masonry, ensuring a durable and reliable seal.
- Easy Application: 1-component formulation eliminates mixing, allowing for direct application and efficient work.
- Paintable: Can be painted over with most conventional facade coatings, allowing for seamless integration with the surrounding finish.
- Weather Resistant: Provides excellent durability against weathering, ensuring long-term performance in outdoor applications.
Technical Overview
Sikaflex® Construction AP is formulated for elasticity and durability, making it suitable for demanding construction environments. Its non-sag properties allow for easy application on vertical and overhead surfaces, ensuring a clean and professional finish. The sealant's elastic recovery and tear resistance contribute to its long-term performance in dynamically stressed joints.
Chemical Properties: 1-component polyurethane, moisture-curing, providing a flexible and durable seal.
Application Temperature Range: +5°C to +40°C (41°F to 104°F), ensuring usability in various climate conditions. It is recommended to apply the product at least 3°C above the dew point temperature to prevent condensation affecting the cure.
Application Information
- Required Tools: Sealant gun, backing rod, masking tape (optional), tooling agent (e.g., Sika® Tooling Agent N).
- Trade-Specific Tips: Ensure proper joint design and dimensioning according to relevant standards. Use a backing rod to control sealant depth and prevent three-sided adhesion.
- Common Issues and Solutions: For optimal adhesion, clean and prime substrates as recommended. Avoid applying in wet conditions or on frozen surfaces.
Storage and Shelf Life
- Storage Requirements: Store in dry conditions, protected from direct sunlight, at temperatures between +5°C and +25°C (41°F and 77°F).
- Shelf Life Information: 12 months from the date of production in undamaged, original, sealed packaging.
- Temperature Considerations: Avoid storing outside the specified temperature range to maintain product quality.
Certifications
- ISO 11600 F 25 LM (Movement capability and sealant properties).
- ASTM C 920 Class 25 (Elastomeric joint sealants).
- VOC SCAQMD Method 304-91 (Volatile organic compound compliance).
Frequently Asked Questions About Sikaflex® Construction AP
Q: How do I prepare the substrate for Sikaflex® Construction AP?
A: Ensure the substrate is clean, dry, and free from contaminants. For porous surfaces, prime with Sika® Primer-3 N. For non-porous surfaces, use Sika® Aktivator-205 and/or Sika® Primer-3 N as required.
Q: Can Sikaflex® Construction AP be painted over?
A: Yes, it can be painted over with most conventional facade coating paint systems. Allow the sealant to fully cure before painting for best results.
Q: What types of substrates is this sealant compatible with?
A: It is compatible with porous substrates like concrete, brick, and masonry, as well as pre-treated non-porous substrates like metals and PVC.
Q: What is the movement capability of Sikaflex® Construction AP?
A: The movement capability is ±25%, allowing the sealant to accommodate joint movement and prevent cracking.
Q: What are the safety precautions when using this product?
A: Wear appropriate personal protective equipment, ensure adequate ventilation, and follow the handling instructions in the Safety Data Sheet.
Use Sikaflex® Construction AP for:
- Sealing movement joints in concrete structures.
- Sealing connection joints between different buildingmaterials.
- General sealing applications in both indoor and outdoor environments.
- Sealing joints in precast concrete elements.
Why Use Sikaflex® Construction AP:
- Flexibility: Accommodates joint movement, preventing cracks and leaks in dynamic structures.
- Durability: Provides long-lasting performance in various weather conditions, reducing maintenance needs.
- Ease of Use: Ready-to-use formulation simplifies application, saving time and effort on site.
- Versatility: Suitable for a wide range of substrates and applications, making it a go-to sealant for many projects.
How to apply Sikaflex® Construction AP:
- Prepare the substrate: Clean and prime as necessary.
- Insert a backing rod: Place the rod at the correct depth.
- Apply the sealant: Extrude Sikaflex® Construction AP into the joint.
- Tool the sealant: Smooth the surface using a compatible tooling agent.
- Remove masking tape (if used): Do this before the skin forms.
Sikaflex® Construction AP limitations:
- Not suitable for natural stone.
- Not suitable for bituminous substrates, natural rubber, or EPDM rubber.
- Not suitable for swimming pool joints or permanent water immersion.
- Uncured sealant should not be exposed to alcohol-containing products.
Safety precautions when using Sikaflex® Construction AP:
- Personal Protective Equipment: Wear gloves, eye protection, and appropriate clothing.
- Ventilation: Ensure adequate ventilation during application.
- Handling: Avoid skin and eye contact. Wash hands thoroughly after handling.
Sikaflex® Construction AP can be used on the following substrates:
- Concrete, aerated concrete, and cement-based renders (requires Sika® Primer-3 N).
- Bricks and mortars (requires Sika® Primer-3 N).
- Aluminium, anodised aluminium, stainless steel, and galvanised steel (requires Sika® Aktivator-205 and/or Sika® Primer-3 N).
- PVC (requires Sika® Primer-215).
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