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SIKA Sikaflex Self Leveling Polyurethane Sealant

SIKA Sikaflex Self Leveling Polyurethane SealantSIKA
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7.0score

Key Features

  • 1.

    Self-Leveling: No tooling required, levels itself.

  • 2.

    Waterproof: Water immersible & waterproof after cure.

  • 3.

    Paintable: Can be painted with water-based, oil-based or rubber-based paints.

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Factors to Consider

  • The sealant is specifically designed for horizontal expansion joints in concrete, making it ideal for driveways, garages, sidewalks, and similar surfaces but less suitable for vertical or overhead applications.

  • Its self-leveling property means no tooling is required, which simplifies application but requires the surface to be properly prepared and level for best results.

  • Cures fully in under a week, providing a tack-free surface within hours, allowing for painting, sanding, or staining to blend with surrounding surfaces.

  • Highly resistant to weathering and aging, ensuring long-term performance and durability even in harsh outdoor environments.

  • The sealant is waterproof and water immersible after curing, preventing moisture infiltration and damage to concrete joints over time.

example product
This polyurethane sealant excels in horizontal concrete joint applications due to its self-leveling, waterproof, and durable properties, with a convenient no-tooling application that cures quickly. However, it is primarily suited for horizontal use and requires proper surface preparation.View on Amazon
Value for money

At under $20 for a 29 fl oz tube, this sealant offers strong durability and versatility, making it a cost-effective solution for maintaining concrete expansion joints.

Quality

This product delivers excellent waterproofing with permanent elasticity and self-leveling technology, ensuring seamless filling of joints and resistance to cracking or moisture damage.

Ease of use

Users appreciate its easy application without tooling, quick tack-free feel, and the ability to paint the cured sealant, resulting in a clean, professional finish that enhances the lifespan of concrete surfaces.

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FAQ

  • Can this sealant be used on vertical or overhead concrete joints?

    SIKA Sikaflex Self Leveling Sealant is formulated specifically for horizontal expansion joints and may not perform optimally on vertical or overhead surfaces as it relies on self-leveling action.

  • Is the sealant safe to paint and how soon after application?

    Yes, once cured (in less than a week), the sealant can be painted with water-based, oil-based, or rubber-based paints to match your concrete surface.

  • Does the sealant require special tools or equipment for application?

    No special tools are required because the sealant is self-leveling and does not need tooling, which simplifies the application process.

  • How resistant is this sealant to weather and aging?

    It is highly resistant to weathering and aging, maintaining elasticity and waterproofing over long-term exposure to harsh outdoor conditions.

  • How quickly does the sealant cure and become usable?

    The sealant becomes tack-free within a couple of hours and achieves full curing in less than a week, after which it can be painted, sanded, or exposed to water.

The Bottom Line

SIKA Sikaflex Self Leveling Sealant is a reliable choice for sealing horizontal expansion joints in concrete, combining ease of use with durable, waterproof protection. Its self-leveling formula and weather resistance ensure long-lasting results, making it a practical investment for maintaining driveways, sidewalks, and garages—making it worthwhile to add to your maintenance toolkit today.

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