Boat Repairs provides information for fibreglass and timber boat repairs, restoration and modification. Service providers might include shipwrights and workshops that offer a specialized service for boat repairs.
Fibreglass Boat Repairs for all boat and marine fibreglass repairs and information.
Fibreglass repairs have long been & still are a complex & tricky job, hopefully this article will explain some of the problems you may experience.
Step 1. When grinding the f'glass back for preparation it is imperative that you remove all delaminated areas. All edges should be feathered out so no sharp edges remain. At this stage you should apply resin to the area to soak into old laminate & act as a primer. Allow to dry 1 day
Step 2. Laminating the damaged area should result in a flat finish & replicate the original surface, polyester resin is the most commonly used resin in production boats & chopped strand mat is also the norm. Allow to dry 1 day
Step 3. Sand the area & apply enough filler to bring it to just above flush. Ultimately you should not be using too much filler as this will result in cracking at a later date. Filler can be bought from f'glass suppliers or as we do, make our own. Sand the filler back with a block to attain a flat surface, even on raduis or inside rounds.
Step 4. Applying the gelcoat to the surface can be done by brush or spray application ( as we do) the trick here & probably the most difficult is getting a perfect colour match! Some f'glass suppliers will match colours at a cost!! allow to dry 1-2 days
Step 5. Finishing> This is where all the skill is involved & again using a flat block to achieve a flat surface is important. Starting with a medium grade freecut sandpaper (220 grit) & working down through the grades to 1200 - 1500 wet & dry then compounding with a power buff.You should then apply 2 coats of wax for a perfect result.
As you can see there is a lot of labour involved but there are NO shortcuts!
This article was put together by Paul van Noort from Elite Gelcoat Repairs. Contact him on : 0408 644 634 or
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