Backer Rod Manufacturing is one of the largest manufacturers of backer rod materials in the world. We are experts in the specialty caulking field, providing backing for elastomeric and other applied sealants to the worldwide construction market. No other company manufactures and supplies backer rod products that are able to withstand temperature variations from -60º F to over 2000º F. Receiving Hours: 7am - 2pm Monday through Friday. Overnight Parking is Available