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The customer service and warranty professionals at Malibu Boats all agree, the most common gel coat damage is caused by inexperienced docking and trailoring of boats. Dock scars, as they are commonly known, can be scratches or actual chips in the gel coat.
According to the experts at Malibu, the best remedy for this type of blemish is education. Becoming familiar with the proper procedure for docking, securing and trailoring a boat is the best prevention. Many authorized Malibu Boat Dealers offer on-the-water training for this purpose. Unfortunately, even the most trained boaters have accidents from time to time.
Required Tools and Materials
-Marine Creame Hardener
-Sand Paper (80 grit/ coarse)
-Sand Paper (180 grit/ medium)
-Sand Paper (360 grit/ fine)
-Eagle Brand Sand Paper (1200 grit/ ultra fine)
-2-inch Masking Tape
-Gel Coat hardener
-Gel Coat (color matched)
-Acetone (Patch Aid in humid climates)
-Electric or Air Buffer
-Spray gun (touch-up gun)
-3M Finesse-It II Finishing Material
-Marine Paste Wax
2.... Wipe damaged area thoroughly with acetone to remove all oil and dirt.
3.... Surround the damaged area with strips of 2-inch tape.
5.... Apply filler mixture to damaged area with spatula to fill the chipped or scratched area.
6.... Allow the filler to harden and dry. The filler has hardened when pressing on the repair area does not create impressions. (to decrease drying/ hardening time use blow dryer)
Sand & Clean
8.... Next, sand filled area with medium 180 grit sandpaper to smooth the surface.
9.... Remove tape from the perimeter of the repair.
10.... Finally sand with fine 360 grit sandpaper to remove the grooves of the coarser sand papers. Make sure you sand at least 3 inches out from the damaged area with this paper. This way the area around the repair does not appear scratched or inconsistent with the rest of boat.
13.... Prepare gel coat for application by mixing the gel coat with 1 ½% - 3% Gel Coat Hardener and 25% acetone. (If being mixed in a humid climate add 30% Patch Aid in place of acetone. Acetone will alter the pigment of the gel coat in this type of climate.) Stir mixture very well. (Acetone and Patch Aid act as reducers so the gel coat can be sprayed through a spray gun.)
15.... Spray approximately 20-30 mils of gel coat at 30 pounds of pressure. Just spray repair area.
16.... Allow gel coat to dry for 2 hours.
Clean, Sand & Buff
8.... Sand repair area with wet (water soaked) fine 360 grit sand paper
20.... Wipe off excess water with towel.
Article Submitted By Malibu Boats