BoatworksToday · video

What this video covers

Repairing "halos"—circular stress cracks or depressions around old hull patches—requires removing the existing plug and bridging the area with structural fiberglass to prevent future print-through.0:30 These defects typically occur because previous repairs failed to fully fill the hole or lacked a fiberglass skin to tie the plug into the surrounding laminate.3:32 To fix these, grind the area down to bare fiberglass, ensuring the depression is deep enough to accommodate both new glass and a final layer of fairing compound.17:21 Use 1708 biaxial fiberglass with epoxy, as the stitched construction of 1708 allows for proper bonding without the styrene-based binders found in standard chopped strand mat.8:19 After wetting out the glass on a non-porous surface, apply it to the repair area and consolidate with a fin roller.7:02 Once cured, apply a fairing compound like Total Boat TotalFair, sanding flush with 120-grit paper.14:17 Proper structural bridging with fiberglass prevents the plug from shifting and eliminates the halo effect.9:46

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