PRE-CAULKING FILLER ROPE
Soft cell backer rod with water-resistant skinRepels water to protect the joint from damagePress filler rope into joint, leaving between -3/8" to 1/2" empty space at the top for caulkFully compatible w/all substrates & sealantsSaves money - fill the joint - use less caulkUse for sidewalk/driveway cracks, door & -window frames, sill plates, wall cracks & more