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 Foam Backer Rod, Gray, 3/4" Diameter x 20' Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks and Joints

SIKA Closed Cell Foam Backer Rod, Gray, 3/4" Diameter x 20' Long, Water-Resistant Joint Filler for Sealant Application, Flexible and Durable for Cracks and Joints

4.6/5

معرّف المنتج: 38638699

معاملة آمنة

التفاصيل

Material
Polyurethane
Brand
SIKA
Style
Joint Filler
Item dimensions L x W x H
240 x 0.75 x
Compatible Material
Foam

💧Water-resistant foam

🧱0.75" max gap fill

🛠️Flexible & durable

الوصف

🧱 Seal smarter, not harder — the pro’s choice for perfect joints!

DURABLE FLEXIBILITY - Closed-cell foam adapts to concrete expansion without cracking
EFFORTLESS APPLICATION - Firm, uniform insertion ensures quick, professional results
OPTIMIZED SEALANT USAGE - Controls sealant depth to maximize efficiency and reduce waste
PRECISION JOINT CONTROL - Prevents 3-point sealant adhesion for flawless finishes
VERSATILE COMPATIBILITY - Ideal for windows, doors, and various joint types

The SIKA Closed Cell Foam Backer Rod is a 3/4" diameter, 20-foot long, water-resistant joint filler designed to enhance sealant application by preventing 3-point adhesion and controlling sealant depth. Its flexible, durable closed-cell foam adapts to concrete expansion, making it ideal for windows, doors, and cracks, ensuring efficient, long-lasting, and professional-grade sealing.