If the concrete slabs are 1 inch apart, will this work? I could not find any 1" being sold... Should the rope seal be the same width or smaller width?

You want to fit the gap. If the backer rod was too small I put in two rods of different sizes to fill the gap. Took some work to make it fit ok and look ok but once I put in the self leveling chalking it looked good. If there is a gap around the rods the chalk will seep down between. Not good. Could use a different chalk type but I liked the look of the self leveling after it dried.

Will this work between the tub and tile in the bathroom?

Hello. Sika Backer Rod can be used in this application if the sealant installation to follow calls for a closed-cell backer rod. Thank you for considering Sika!

Can this be used to seal between facia boards and brick wall to keep bats out?

We used this to fill big cracks in our driveway and then used concrete sealer over that. I suppose you can use it for your purpose.

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Sika Closed Cell Backer Rod (3/4-inch)

Product ID: 274048628

Details

Brand
SIKA
Item Weight
0.04 Kilograms
Item dimensions L x W x H
6.1 x 0.02 x
Material
Polyurethane
Style
Joint Filler

💧Water-resistant for durability

📏3/4-inch diameter precision fit

🛠️20 ft length for extensive coverage

330 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧱 Seal smarter, not harder — the pro’s secret to flawless joints!

SEAMLESS AESTHETIC - Neutral gray blends with most surfaces and sealants
DURABLE VERSATILE - Closed-cell foam resists water and compresses for lasting performance
MAXIMIZE EFFICIENCY - Controls sealant depth to save material and time on every project
PERFECT JOINT CONTROL - Prevents 3-point sealant adhesion for flawless flexibility
EFFORTLESS INSTALLATION - Simply insert, seal, and smooth for professional results

Sika Closed Cell Backer Rod (3/4-inch) is a water-resistant, highly compressible polyurethane foam designed to fill expansion joints and cracks efficiently. Measuring 3/4-inch in diameter and 20 feet long, it prevents 3-point sealant adhesion, controls sealant depth, and ensures a smooth, professional finish for interior and exterior applications.

Specifications

ASIN	B013XSV3A6
Best Sellers Rank	#185,861 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #782 in Hardware Sealers
Brand Name	SIKA
Colour	Grey
Compatible Material	Foam
Country of Publication	USA
Customer Reviews	4.6 4.6 out of 5 stars (1,014)
Global Trade Identification Number	00033886001595
Included Components	Backer Rod
Item Dimensions	6.1 x 0.02 x 0.02 Meters
Item Form	Foam
Item Type Name	Backer Rod
Item Weight	0.04 Kilograms
Manufacturer	Sika
Manufacturer Part Number	108130
Material Type	Polyurethane
Model	108130
Number of Items	1
Number of Packs	1
Style Name	Joint Filler
Surface Recommendation	Window,Door
UPC	033886001595
Unit Count	1.0 Count
Water Resistance Level	Water Resistant

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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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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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

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