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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Backer Rod

Product ID: 38638699

Details

Brand
SIKA
Item Weight
0.04 Kilograms
Item dimensions L x W x H
240 x 0.75 x
Material
Polyurethane
Style
Joint Filler

💧Water-resistant for durability

📏3/4" diameter precision fit

🛠️20 ft length for extensive coverage

$U1543

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Uruguay.

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Description

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

FLEXIBLE DURABLE - Closed-cell foam adapts to expansion and contraction without cracking
MAXIMIZE EFFICIENCY - Optimizes sealant use, saving time and reducing waste on every project
PERFECT JOINT CONTROL - Prevents 3-point sealant adhesion for flawless finishes
EFFORTLESS INSTALLATION - Simply insert, seal, and smooth for professional results every time
UNIVERSAL COMPATIBILITY - Neutral gray blends seamlessly with most surfaces and sealants

The SIKA Closed Cell Foam Backer Rod is a 3/4" diameter, 20-foot long polyurethane foam designed to fill and support expansion joints and cracks. Its water-resistant, flexible closed-cell structure prevents sealant adhesion on multiple surfaces, ensuring durable, professional-grade sealing for windows, doors, and concrete joints. Ideal for both interior and exterior applications, it streamlines installation and enhances sealant performance, making it a must-have for efficient, long-lasting weatherproofing.

Specifications

ASIN	B013XSV3A6
Best Sellers Rank	#24,993 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #91 in Hardware Sealers
Brand	SIKA
Brand Name	SIKA
Color	Grey
Compatible Material	Foam
Customer Reviews	4.6 out of 5 stars 1,040 Reviews
Global Trade Identification Number	00033886001595
Included Components	Backer Rod
Item Dimensions	240 x 0.75 x 0.75 inches
Item Form	Foam
Item Type Name	Backer Rod
Item Weight	0.04 Kilograms
Item dimensions L x W x H	240 x 0.75 x 0.75 inches
Manufacturer	Sika
Material	Polyurethane
Material Type	Polyurethane
Model	108130
Number of Items	1
Part Number	108130
Style	Joint Filler
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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How is product pricing calculated?+

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.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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4 days ago

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$U1543

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Uruguay.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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