SIKA Sikaflex 1a 20 oz Sausage, White, 1 Unit, One Component, Elastomeric, Non Sag, Polyurethane Concrete and Masonry Joint Sealant for Vertical and Horizontal Joints
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SIKA Sikaflex 1a 20 oz Sausage, White, 1 Unit, One Component, Elastomeric, Non Sag, Polyurethane Concrete and Masonry Joint Sealant for Vertical and Horizontal Joints

Product ID: 42749646
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Details

  • Color
    WHITE
  • Brand
    SIKA
  • Item Weight
    1.9 Pounds
  • Liquid Volume
    20 Fluid
  • Full Cure Time
    24 Hours
🔄±35% joint movement flexibility
🌦️Superior weather resistance
🛠️Standard caulking gun ready

Description

🔧 Seal smart, last longer—because your projects deserve the best!

  • ALL WEATHER WARRIOR - Engineered to resist aging and harsh weather, perfect for any climate challenge.
  • DYNAMIC FLEXIBILITY - Handles joint movement up to ±35%, ensuring your seals stay intact through every shift.
  • MULTI SURFACE MASTER - Ideal for windows, doors, roofing, and more—versatility that keeps your projects flawless.
  • EFFORTLESS INSTALLATION - Works seamlessly with any standard sausage caulking gun—no special tools needed.
  • UNIVERSAL BONDING POWER - Adheres strongly to most materials without primer—cutting prep time and complexity.

SIKA Sikaflex 1a is a one-component, elastomeric polyurethane sealant designed for both vertical and horizontal concrete and masonry joints. It offers easy application with standard tools, strong adhesion without primers, ±35% joint movement flexibility, and excellent weather resistance, making it a reliable choice for durable, professional-grade sealing in diverse construction scenarios.

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Reviews

M**Z

Awesome sealer for concrete and gap filler

This product worked great as a gap sealer between the concrete slab and bottom plate of our wood framed workshop. It is very rubbery when cured so it won't crack or shrink, very similar to silicone but with a rubbery feel to it.I have also used it as a sealer between the window flange and framing of a window opening in new construction applications. I think you can seal gaps up to 3/4" but that's gonn use a lot of material for a gap that large. I reccomend using appropriate size backer rod, then top coat with this product.-MLC Remodeling

M**C

Sika Works

After cleaning the expansion joint between the garage slab and driveway, I followed directions to ensure uniform depth with foam. Application was easy and required some smoothing, it turned out great. I highly recommend this product.

L**L

Durable and Stays Bonded

Put in a channel drain and sealed to side walk with this product. Adheres nicely and easy to work with and dries fairly quickly. Good concrete joint sealer.

D**E

Easy to use

Flows and fills in better than most other sealants. Soft and flexible, tubes are large and cover bigger cracks/gaps.

V**.

only one tube

As the other gentleman said it is only one tube. It is portrayed in front of a box to make you think you are getting multiple tubes for the price. You can get one tube on other supply sites for less than $8.

T**T

Great product!! Wrong color sent

Great product ! But was sent the wrong color...

E**.

Amazing product for sealing a trailer

I used 4 of these to seal up an old trailer. It worked perfectly and was fully cured in about 5 days. Simply put an amazing product.

S**.

In pictures showing mulaty but it's only sasuge .

There only one sesuge in the box , the pictures showing more then one. And to expansive . Return will cost another $15 .

Common Questions

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.
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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sika Sikaflex 1a 20 Oz Sausage White 1 Unit One | Desertcart BAHRAIN