Using a painters tape place the tape around the hole to avoid getting access resin on other parts of the hull. I used this to cut away the foam underneath the fiberglass around each hole.
Fiberglass Hull Repair how to easily fix a thru hull holeThis short video shows how to easily fix a thru hull hole with a fiberglass patch.
Repair small hole in fiberglass boat hull. Repair small hole in a fiberglass boat hull. Hole going right through fiberglass into the boat. First examine the hole and look for cracks and chips extending out from the hole.
Use a marker to circle the entire damaged area. Making sure to include the cracked spots. Next take a saw and cut out the damaged area that youve circled with the marker.
The experts at Metan Marine Restoration show how to repair a small section of damaged hull right down to the new gelcoat application. Check out the full art. Chip away any loose fiberglass from around the hole.
Next take a small grinder and smoothen the edges of the hole as well as the exposed fiberglass. After youve ground the area you should now be down to the solid laminate. Using a painters tape place the tape around the hole to avoid getting access resin on other parts of the hull.
See how I fill in small holes in the fiberglass topside and hull on my Bosto. Heres a technique I picked up along the way during various boat restorations. Starting the repairs is daunting but with a little know-how it can be easy.
Here are a few steps you could use to fix small holes or gouges in fiberglass boat hulls. Clean The Boat Thoroughly. Anything that doesnt need to be on the boat should be removed and the entire boat.
This is the method you want to use. Basically grid back the hole to get a 121 bevel on both sides of the hole and then lay up glass on both sides of the hull and rebuild the hull. When it is done you will have to put paint or gelcoat on the repair to.
Before you can repair this hole you have to cover up the inside of the hull to prevent the wet fiberglass from caving in. A piece of plywood soft foam and plastic. All these materials must have a larger size than your work area.
To cover the repair area you position the plastic first on the repair area then the soft foam and the plywood last. Fiberglass Hull Repair how to easily fix a thru hull holeThis short video shows how to easily fix a thru hull hole with a fiberglass patch. You will need res.
This step-by-step video tutorial produced by Sea Hawk Paints will show exactly what needs to be done when patching a hole in your fiberglass boat. Before attempting a repair by yourself get a professional opinion. Always wears Personal Protective Equipment when sanding or working with chemical compounds.
Respirator safety glasses and gloves are always recommended. Here is a list of products you will need for the repair. Filling old screw holes in a fiberglass boat.
Another vote for Marine Tex. I used it to fill screw holes that were through the hull. Before filling I chamfered the edges of the hole from the outside so there was more surface area for the epoxy to grip.
None of the filled holes has loosened up or leaked. If I could get to the hole on the inside of the skin Id lay a patch glassepoxy over the hole then fill the hole from the outside using polyestertalc filler. With this much cloth and resin you could do a lot of small repairs of cracks and holes.
A simple hole or crack repair might cost you 5000 each so youd definitely save money on smaller repairs and you may even have some extra fiberglass left over for the future. For a balsa core deck repair you might want ¾ inch core. Best filler for repairing screw holes in fiberglass.
Milled fibers not chopped and silica are the usual suspects though cotton flock West 403 and calcium metacilcate West 404 also will bond well. As to the best well milled fiber improves adhesive qualities on glass surfaces and is my typical choice for wood to glass. The steps to fixing a simple ding or small hole are as follows.
First sand the area. I use a disc sander. You want to create a rough area around the hole or ding for epoxy to stick to.
Next you will fill the hole or ding with epoxy that has been thickened with colloidal silica. The first thing you want to do when repairing small holes in fiberglass is prep the old hole. Youll actually want to drill the hole out so that fresh surface material will be exposed.
This allows the patch material you are using to adhere better. Use a drill bit that is slightly larger than the hole youll be patching. Preparing the Hull Fiberglass Repair.
In order to start putting down a few layers of fiberglass I needed to first repair the holes I had drilled to inject the foam. I started this step by using a dremel tool with a cone shaped burr tip. I used this to cut away the foam underneath the fiberglass around each hole.
A fiberglass hull gouge is so serious because it gets right through the layers of your hulls protectant. Its important to understand what youve lost with a gouge like that. One of the most important layers is the gel coatthe outer layer that creates a de facto seal between your boats hull and the aquatic environment.
To repair a fiberglass boat start by cutting away the damaged area. To make sure youre stripping away all the damage always remove an area at least half an inch 127 cm larger than the damage you see at first view. This type of boat is always waxed so before you attempt to repair the hole wash the area with a solvent.