LOUISIANA DEPARTMENT OF TRANSPORTATION AND DEVELOPMENT
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Backer Material

A compressible material that is placed in joints or cracks before applying sealant to prevent bonding of the sealant on the bottom of the joint, control-sealant depth, and prevent sagging of the sealant.
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The La DOTD Headquarters Building is located at 1201 Capitol Access Road, Baton Rouge, LA, 70802. Telephone: (225) 379-1232.
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