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Ensure substrate is structurally sound, fully cured, dry and clean
Use primer as necessary
If required, install the appropriate size backer rod for the joint
When using 300 ml cartridges, cut tip of cartridge for desired width of the sealant bead
Insert cartridge into caulking gun
When using 20-ounce propaks, insert propak into a bulk caulking gun
Open propak with a razor knife, then attach cone to the caulking gun
Cut the cone slightly smaller than the width of the joint
Fill joint from the deepest point, to the surface
Dry tool joints to create a smooth, concave shape