Specification Brand : Conspec BulletPoint1 : Compression Seal Windows and Doors BulletPoint2 : Used in conjunction with sealants BulletPoint3 : meets current ASTM Ratings TYPE: 3 -Per ASTM D 5249 BulletPoint4 : multiple applications, joints, cracks, gaps BulletPoint5 : most commonly used in building construction ExternallyAssignedProductIdentifier1 : 0700287225447 ExternallyAssignedProductIdentifier2 : 700287225447 ItemForm : Foam ItemName : Conspec 7/8" Closed Cell Backer Rod 850 Feet HBR Foam Rod for Caulking ItemTypeKeyword : adhesive-caulk Manufacturer : Conspec PartNumber : HBR7/8-850 ProductDescription : Backer Rod limits the depth of the sealant and prevents excessive sealant use. It also helps sealant assume optimum shape factor to prolong sealant service life and acts as a barrier to the flow of sealant through the joint. Common applications include, but are not limited to, expansion and contraction joints, curtain walls, construction partitions, parking decks and bridge construction. ProductSiteLaunchDate : 2018-09-26T17:30:35.984Z UnitCount : 1 WaterResistanceLevel : waterproof