SIKA
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SIKA Closed Cell Foam Backer Rod, Gray, 34 Diameter x 20 Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks and Joints
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SIKA Closed Cell Foam Backer Rod, Gray, 34 Diameter x 20 Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks and Joints
Sika Backer Rod is inserted into a joint to control sealant depth and to prevent 3 sided adhesion
SIKA Closed Cell Foam Backer Rod, Gray, 34 Diameter x 20 Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks and Joints
Item #: 3394753

SIKA Closed Cell Foam Backer Rod, Gray, 34 Diameter x 20 Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks

Item #: 3394753

KWD 5

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Sika Backer Rod is inserted into a joint to control sealant depth and to prevent 3 sided adhesion
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What Stands Out

Water-Resistant
Sika's closed cell backer rod effectively prevents moisture infiltration, ensuring a durable seal when applying sealants, which greatly enhances long-term performance.
Flexible Design
The flexible polyethylene material adapts easily to various joint shapes and sizes, providing reliable and consistent filling of cracks for optimal sealant application.
Convenient Size
Measuring 3/4" in diameter and 20' long, this backer rod is perfect for both professional and DIY projects, delivering high value and efficiency in sealing applications.

Product Details

Find a wide selection of SIKA Backer Rod in gray color made of polyethylene foam. Used to fill cracks or joints. Shop now at Ubuy Kuwait.
  • Partially fills deep expansion joints and cracks before sealant application
  • Prevents 3-sided adhesion, allowing for control of sealant depth
  • Highly compressible and flexible, suitable for a wide range of surfaces and sealants
  • Industry-standard Polyethylene foam backer rod, water, and temperature resistant
  • Easy-to-use: clean area, insert firmly, apply suitable sealant, and smooth for a uniform finish
  • Available in 3/4 inch diameter, 20 ft long, and in gray color
Brand NameSIKA
UPC033886001595
Unit Count1.0 Count
Global Trade Identification Number00033886001595
Number of Items1
Part Number108130
Model108130
Item Type NameBacker Rod
ManufacturerSika
Included ComponentsBacker Rod
Water Resistance LevelWater Resistant
Item FormFoam
Compatible MaterialFoam
Item Weight0.04 Kilograms
Item Dimensions240 x 0.75 x 0.75 inches (609.6 x 1.9 x 1.9 cm)
Style NameJoint Filler
ColorGrey
Surface RecommendationWindow,Door
Material TypePolyurethane
MaterialPolyurethane
BrandSIKA
StyleJoint Filler
Item dimensions L x W x H240 x 0.75 x 0.75 inches (609.6 x 1.9 x 1.9 cm)

Who Should Buy?

Suitable For
  • Homeowners

    Ideal for homeowners looking to fill gaps around windows and doors before applying sealant for effective weatherproofing.

  • Contractors

    Contractors can efficiently use this backer rod to ensure a proper seal in joints and cracks during construction projects.

  • DIY Enthusiasts

    Great for DIY enthusiasts working on home improvement projects where a flexible, water-resistant material is needed for sealing.

Not Suitable For
  • Heavy Loads

    Not suitable for applications requiring support for heavy loads as it may compress and not provide structural integrity.

Product Description

SIKA Closed Cell Foam Backer Rod, Gray, 34 Diameter x 20 Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks and Joints

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is Sika Polyethylene Foam Closed Cell Backer Rod used for?

    Answer: Sika Polyethylene Foam Closed Cell Backer Rod is primarily used to fill joints and cracks in various materials before applying sealants. It provides a stable backing that helps control the depth of the sealant and promotes optimal adhesion. This is particularly beneficial in construction and renovation projects where sealing is crucial to prevent moisture ingress and damage.
  • Question: How does the flexibility of the Sika Backer Rod enhance its performance?

    Answer: The flexibility of the Sika Backer Rod allows it to adapt seamlessly to varying joint sizes and shapes, ensuring continual compression and recovery during temperature fluctuations. This adaptability prevents sealant stress and improves longevity, making it ideal for dynamic environments like concrete expansion joints and walls subject to movement.
  • Question: Is the Sika Backer Rod water-resistant?

    Answer: Yes, the Sika Backer Rod is specifically designed to be water-resistant. Its closed-cell structure prevents water absorption, which helps keep the joints dry and supports the effectiveness of the sealant applied over it. This quality is essential in outdoor applications or areas exposed to moisture, ensuring a durable and reliable seal.
  • Question: What are the dimensions of the Sika Polyethylene Foam Backer Rod?

    Answer: The Sika Polyethylene Foam Backer Rod comes in a standard diameter of 3/4 inch. This size is engineered to fit most common joint widths in construction projects, making it versatile for various applications. Its size is perfect for filling gaps while providing the necessary support for sealants.
  • Question: Can Sika Backer Rod be used for both indoor and outdoor applications?

    Answer: Absolutely! Sika Backer Rod is suitable for both indoor and outdoor applications. Whether you are sealing around windows, doors, or joints in concrete, its water-resistant and flexible properties make it ideal for a wide range of weather conditions, ensuring long-lasting performance across various settings.
  • Question: How should I prepare the surface before using Sika Backer Rod?

    Answer: Before using Sika Backer Rod, ensure that the surfaces are clean, dry, and free of debris or old sealant residues. This preparation helps achieve maximum adhesion when applying sealant. Additionally, proper surface preparation can prevent potential issues such as sealing failures.
  • Question: Is the Sika Backer Rod environmentally friendly?

    Answer: Sika Polyethylene Foam Backer Rod is made from closed-cell polyethylene, which offers a more environmentally friendly alternative compared to traditional filler materials. Its durability ensures reduced waste and longer-lasting performance, making it a sustainable choice for any construction project.
  • Question: How does the Backer Rod help improve sealant efficiency?

    Answer: The Backer Rod aids in sealant efficiency by providing a controlled joint depth that ensures optimal sealant application. This prevents too much sealant from being used and promotes proper sealing around the edges, which significantly enhances the overall effectiveness and appearance of the finished job.
  • Question: What type of sealant works best with the Sika Backer Rod?

    Answer: Sika Backer Rod works well with a variety of sealants, including silicone, polyurethane, and latex-based sealants. Each type of sealant has distinct properties that can enhance specific applications, so it’s important to choose one that aligns with the materials of your project for the best results.
  • Question: Where can I buy Sika Polyethylene Foam Closed Cell Backer Rod in Kuwait?

    Answer: You can purchase the Sika Polyethylene Foam Closed Cell Backer Rod from Ubuy in Kuwait. Ubuy offers a comprehensive selection of building materials, ensuring you can easily find the Backer Rod and other related products that will meet your project needs.

SIKA Sealers Editorial Review

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Ahmad
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“Fast delivery, great experience overall.”

03-Jul-26 · via Trustpilot
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abbas
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“Excellent item received as expected and before the estimated time. Thanks for the great service.”

19-Jul-26 · via Trustpilot
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Waleed
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“Thank you for your message. I received the product and it is very good ? I?m really impressed with how great it works! I will be happy to share my feedback on the website.”

11 February 2026 · via Trustpilot
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Ahmed
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“Very good the same exact product that i wanted good shipping and delivery”

10 June 2026 · via Trustpilot
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Ambhita
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“Package delivered on time”

10 July 2026 · via Trustpilot
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Features & Benefits

  • Prevents 3-sided adhesion, controls depth of sealant
  • Good temperature resistance, no water absorption
  • Partially fills deep cracks, oil and solvent resistant
  • Ideal for glazing, expansion joints, window and door perimeters, copings, and pavement joints
  • Highly flexible, compressible and easy to apply
  • Use to partially fill up deep cracks or joints before applying sealant

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