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Common Problems and Solutions for Fiberglass High-Speed Boats
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Release time:
2020-09-30
Common issues with fiberglass speedboats include: cracking of the gel coat at structural joints, leaks at joints/openings, water seepage, bubbling of the gel coat on the surface of the fiberglass hull deck, black spots appearing, bubbling and cracking of the non-slip pads on the deck, leaks in the bottom of the boat, scratches and cracks from collisions during use, and color changes or discrepancies in the gel coat surface. These issues may be caused by manufacturing negligence or improper use leading to abnormal conditions in the fiberglass.
Fiberglass High-Speed BoatCommon Problems and Solutions:
Common fiberglass issues include: cracks in the adhesive shell at structural joints, leaks at joints/openings, water seepage, bubbling or black spots on the surface of the fiberglass hull deck, bubbling and cracking of the non-slip pads on the deck, leaks at the bottom of the boat, scratches and cracks from collisions during use, and color changes or discrepancies in the adhesive shell surface. These issues may arise from manufacturing negligence or improper use leading to abnormal fiberglass conditions.
Causes of Problems and Solutions
1. Color change, bubbling, and black spots on the surface adhesive shell:
The instability in the curing agent ratio due to changes in weather during local repair work, or color discrepancies from different batches of adhesive shell can cause future color changes (light and dark differences, yellowing) in the external adhesive shell, especially on dark adhesive shells. Failure to completely eliminate tiny bubbles and dust particles during layering can lead to future bubbling and black spots on the external adhesive shell.
Solution:
a. Color difference: Sand down the surface adhesive shell layer, reapply the same model of adhesive shell, wet sand with #1000 or higher sandpaper, and then polish and wax to finish. Control the amount of curing agent added according to the manufacturer's recommendations during production and repair.
b. Bubbling/black spots: Chisel away the adhesive shell layer at the bubbling/black spot areas, and reapply the same model of adhesive shell. Wet sand with #1000 or higher sandpaper, then polish and wax to finish.
c. If there are deep bubbles or black spots: Dig down to the bottom, then fill the recessed area with a piece of felt and laminated resin. After curing, reapply the same model of rubber shell, wet sand with #1000 or higher sandpaper, then polish and wax.
2.Fiberglass High-Speed BoatCracks at the junction of the hull and deck:
During use, most accidental collisions occur at the junction of the porthole (hull and deck).
Solution:
a. Small local collisions: Remove the fender pressing strip, repair the fiberglass, reattach it with structural adhesive and bolts, and then reinforce/repair.
b. Larger area collisions: Please contact the dealer to arrange for professional repair.
3.Fiberglass High-Speed BoatCracks in the surface adhesive shell at the junctions of the hull, deck, flybridge, and fiberglass components:
These usually occur at the junctions between single fiberglass components like stairs and the main deck. Due to the combination of two fiberglass components, the convex and concave corners are prone to cracking in the surface adhesive shell due to long-term use.
Solution:
Remove the excessively thick surface adhesive shell layer, and reinforce with felt and layered resin. After curing, reapply the same model of rubber shell, wet sand with #1000 or higher sandpaper, then polish and wax.
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