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Sikaflex®-11 FC Polyurethane Sealant and Adhesive
Sikaflex®-11 FC Polyurethane Sealant and Adhesive

Sikaflex®-11 FC Polyurethane Sealant and Adhesive

Sikaflex®-11 FC is a high-performance, one-component polyurethane sealant and adhesive, offering exceptional elasticity, durability, and adhesion to a broad range of construction materials. Ideal for both sealing and bonding applications, it provides a fast cure rate and excellent resistance to weathering and water.
Vendor: Sika
SKU: SIKA11FCBL/CTG
Availability: In Stock
$252.48
$252.48
Prices do not include GST
Physical Properties
Composition: I-cure technology polyurethane
Packaging: 300 ml cartridge, 600 ml foil pack
Shelf_life: 15 months from production date
Storage_conditions: Store in original, unopened packaging at +5°c to +25°c
Density: 1.35 kg/l
Shore_hardness: 37 (iso 868)
Tensile_strength: 1.5 n/mm²
Movement_capability: ±35%
Service_temperature: -40°c to +80°c
Curing_rate: 3.5 mm/24 hours
Certifications: Leed v4, ibu environmental product declaration, astm c920-11 class 35

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Shipping & Delivery

$15.95 + GST for Australia-wide shipping, excluding DG, oversized, long-length, and bagged items over 15kg. Rural, remote areas and site deliveries are also ineligible. If your order includes any of these, we will contact you to arrange additional freight fees. Online purchases only.

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Sikaflex®-11 FC Polyurethane Sealant and Adhesive
Sika
Sikaflex®-11 FC Polyurethane Sealant and Adhesive
$252.48
Sikaflex®-11 FC Polyurethane Sealant and Adhesive
Sikaflex®-11 FC Polyurethane Sealant and Adhesive
Sika
Sikaflex®-11 FC Polyurethane Sealant and Adhesive
$252.48
Colours: Black
Size: 310ml Cartridge
Package Type: Box Buy (12)
Description  

Please note, this product is BOX BUY only.

Use Sikaflex®-11 FC for: Sealing joints in concrete, wood, and metal, and bonding floor moldings, skirting boards, and acoustic ceiling tiles.

Sikaflex®-11 FC is a versatile, one-component polyurethane sealant and adhesive designed for professional use. Its advanced formulation delivers a fast cure rate and exceptional adhesion to a wide range of substrates, including concrete, brick, metal, and wood. This product is perfect for Australian tradespeople needing a reliable solution for both sealing and bonding applications, offering long-lasting elasticity and resistance to weathering and water.

Key Features of Sikaflex®-11 FC

  • Dual Functionality: Acts as both a sealant and adhesive, reducing the need for multiple products on site.
  • Fast Cure Rate: Speeds up project completion, allowing for quicker over-painting and use.
  • Excellent Adhesion: Bonds strongly to various materials, ensuring long-lasting performance.
  • Weather and Water Resistance: Provides durable protection against harsh Australian weather conditions.
  • High Elasticity: Accommodates joint movement, preventing cracks and failures.

Technical Overview

Sikaflex®-11 FC is formulated with a moisture-cured polyurethane that delivers a Shore A hardness of 40-45, providing a balance of flexibility and durability. Its tensile strength of approximately 1.55 N/mm² and elongation at break of 600% ensure robust performance in demanding applications.

Chemical Properties: One-component polyurethane that cures with atmospheric moisture, providing a flexible and durable seal.

Application Temperature Range: +5 °C to +35 °C (41 °F to 95 °F), ensuring reliable application in typical Australian climate conditions. Service temperature is -20 °C to +70 °C.

Application Information

  • Required Tools: Standard sealant gun, masking tape, backing rods, Sika® Tooling Agent N.
  • Trade-Specific Tips: Ensure surfaces are thoroughly clean and primed as needed. Use backing rods to control sealant depth and prevent three-sided adhesion.
  • Common Issues and Solutions: Bubbling can occur if moisture is trapped; ensure proper substrate preparation and avoid applying in high humidity.

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 in original, sealed packaging.
  • Temperature Considerations: Avoid storing in extreme temperatures to maintain product integrity.

Certifications

  • ASTM C920: Meets requirements for elastic joint sealants.
Common Questions  

Frequently Asked Questions About Sikaflex®-11 FC

Q: Can Sikaflex®-11 FC be used for underwater applications?

A: For total water immersion applications, allow a 5-day cure at standard conditions. Avoid long term exposure to high levels of chlorine. Do not use in swimming pools.

Q: How long does Sikaflex®-11 FC take to cure?

A: It takes 1 to 2 hours to become tack-free, depending on climate conditions, and 3 to 5 days for a final cure.

Q: What materials does Sikaflex®-11 FC adhere to?

A: It adheres to most common construction materials, including concrete, brick, ceramics, glass, metals, and wood. Primers may be needed for some substrates.

Q: Can Sikaflex®-11 FC be painted?

A: Yes, it can be overpainted with most conventional paints. However, preliminary tests are recommended to ensure compatibility. Best results are achieved after a full cure.

Q: What safety precautions should I take when using Sikaflex®-11 FC?

A: Wear appropriate PPE, such as gloves and eye protection. Ensure adequate ventilation. Clean tools with Sika® Remover-208 immediately after use.

Uses & Benefits  

Use Sikaflex®-11 FC for:

  • Sealing joints in concrete and masonry structures.
  • Bonding skirting boards and floor moldings.
  • Sealing metal fabrications and bolted lap joints.
  • Adhering acoustic ceiling tiles.
  • General construction sealing and bonding.

Why Use Sikaflex®-11 FC:

  • Provides a durable and flexible seal, preventing water ingress and air leakage.
  • Offers excellent adhesion to a wide range of building materials, reducing the need for multiple products.
  • Cures quickly, allowing for faster project completion and reduced downtime.
  • Resists weathering and water, ensuring long-term performance in various environmental conditions.
  • Can be overpainted, allowing for seamless integration with existing finishes.
How To Apply  

How to apply Sikaflex®-11 FC:

  1. Prepare the substrate: Clean and prime as needed.
  2. Insert backing rod: To control sealant depth.
  3. Apply sealant: Extrude into the joint, ensuring full contact.
  4. Finish: Tool the sealant with Sika® Tooling Agent N.
Limitations and Safety Info  

Sikaflex®-11 FC limitations:

  • Not for use in expansion joints.
  • Do not use on bituminous substrates, natural rubber, or EPDM rubber.
  • Avoid exposure to high levels of chlorine.
  • White colour can discolour when exposed to UV light.

Safety precautions when using Sikaflex®-11 FC:

  • Personal Protective Equipment: Wear gloves, eye protection, and appropriate respiratory protection in poorly ventilated areas.
  • Ventilation: Ensure adequate ventilation during application and curing.
  • Handling: Avoid skin and eye contact. Clean tools and skin with Sika® Remover-208.
  • Disposal: Dispose of cured material according to local regulations.
Suitable Substrates  

Sikaflex®-11 FC can be used on the following substrates:

  • Concrete: Prime with Sika® Primer-3 N for optimal adhesion.
  • Metal: Use Sika® Aktivator-205 and/or Sika® Primer-3 N depending on the type of metal.
  • Wood: Ensure the wood is clean and dry.
  • Ceramics: Clean and slightly roughen the surface for best results.

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