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This backer rod is 3/4 Inch in diameter. It is cut to length based on the amount of linear feet you order. 

Our Foamlite Backer Rod is a subfiller for expansion joints and crack repair. It is a Polystyrene rope. For use underneath as a base for Thermolastic and Permaseal fillers. 

Prevents the need to completely fill the gap as it provides a surface for the filler to harden on top of. Significantly reduces the amount of filler required to fill gaps.

Since the foam does contract, it is suggested that you purchase a diameter slightly larger than your crack to ensure a tight seal. 

Sold per lineal foot. 

Deck-O-Seal One-Step Cartridge 11 oz.
11JFM-I.jpg Deck-O-Seal One-Step Cartridge 11 oz.

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96JF-I.jpg Deck-O-Seal Pourable Joint Filler 96 oz. (Gallon).

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