Repairing Guides

how to repair fiberglass chips on boat

by Colin Wehner Published 2 years ago Updated 1 year ago
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How to Fix Chips & Dents on a Fiberglass Boat

  1. Cover undamaged areas of the hull close to the area to be repaired with newspaper. Mask the edges with tape.
  2. Roughen the surface in and around the chip or dent with 80-grit sandpaper to give the gelcoat a rough surface to adhere to.
  3. Mix a small amount of gelcoat in your mixing container according to manufacturer's directions. ...
  4. Add the MEKP catalyst as directed. Be sure to get the catalyst proportions right. Too much will prevent the gelcoat from hardening and create air bubbles.
  5. Fill the damaged area with about 25 percent more gelcoat than you need, to allow for shrinkage. ...
  6. Wait at least four hours for the gelcoat to harden. Meanwhile clean up any mess with acetone and paper towels.
  7. Wipe down the repaired area with acetone and a rag to remove any tackiness. Tape around the edges of the new gelcoat to protect the existing hull.
  8. Apply buffing compound and buff smooth with a buffer. It may take three or four passes with the buffer to polish the repair smooth.

Part of a video titled XS Ribs: How to do a Fibreglass / Gell Coat Repair of a Chip ...
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Difficult. So make sure the hole is all clean and dry mix up your resin a lot of people don't mix upMoreDifficult. So make sure the hole is all clean and dry mix up your resin a lot of people don't mix up enough resin.

Can you repair gelcoat chips on a boat?

Here’s a quick guide to teach you how to repair gelcoat chips. The quality of your boat’s appearance is largely the result of its fiberglass. If the fiberglass gelcoat is damaged, dinged or chipped, it’s going to throw off the entire smooth exterior.

Can you fix a fiberglass boat yourself?

Fix boats, personal watercraft, even truck toppers with these fiberglass repair tips. Do it yourself and save thousands. A repair pro shows you how to make invisible fixes for scuffs, dents and scratches in fiberglass boats and other fiberglass items.

How do you fix a chipped Hull on a boat?

We are using the Gel Cote International Scratched Surface Repair Kit With Wax to fix the chipped hull in just over 2 hours. This was a very easy fix, mix 4 drops of hardener in 1 Teaspoon of Gel Coat, apply, cover with included plastic sheet, wait two hours, and then wet sand and polish for final finish.

What are the required materials for this boat fiberglass repair project?

Required Materials for this Boat Fiberglass Repair Project 1 Acetone 2 Buffing compound 3 Disposable spray gun 4 Gel coat 5 Gel coat reducer 6 Powdered fiberglass filler 7 Sandpaper 8 Wax

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How do you fix gelcoat chips on a boat?

18:4619:38How to repair cracks and chips in damaged gelcoat - YouTubeYouTubeStart of suggested clipEnd of suggested clipWell thanks again guys for watching Justin skip shop we've got lots of work here every day somethingMoreWell thanks again guys for watching Justin skip shop we've got lots of work here every day something new big projects like this but this was a small little patch you know a little chip on the corner I

How do you repair a chip in a boat?

0:355:22How To Repair DIY Chipped Gel Coat fiberglas Boat : Marine - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo you can buy some inexpensive kits that are easy to to repair so it's just a matter of cleaning upMoreSo you can buy some inexpensive kits that are easy to to repair so it's just a matter of cleaning up the area getting rid of the sharp edges with the light sanding or grinding.

Can you patch fiberglass on a boat?

Fill any deep gouges and spend your time sanding out scratches while the filler sets up. Apply gel coat to the filled gouges and finish to the scratches and then final-sand the filled gouges. Buff all the repaired areas and then the rest of the boat. Apply any graphics to finish up.

How do you repair a deep gouge in a fiberglass boat?

0:502:51How to Repair Deep Cracks in Fiberglass Boats - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing the disposable brush saturate it with epoxy. One at a time apply and saturate theMoreUsing the disposable brush saturate it with epoxy. One at a time apply and saturate the progressively smaller pieces of fiberglass.

How do you fix gouges in gelcoat?

Begin by sanding around the area and the scratch with 320-grit paper. Again, be cautious not to remove too much material. After sanding, use a Dremel tool to clean out the gouge a bit, then feather the edges of the scratch with 180-grit. This helps the gelcoat blend in and helps hide the edges of the filled scratch.

How do you repair a fiberglass boat hull?

Step-by-Step Guide To Repair Fiberglass Boat Hull From the OutsideStep 1: Grind around the hole. ... Step 2: Clean the damaged area. ... Step 3: Back up the hole. ... Step 4: Prepare the patch. ... Step 6: Apply the layers of roving. ... Step 7: Apply the fiberglass cloth. ... Step 8: Allow the patch to dry and remove irregularities.

Can You Use Flex Seal on a fiberglass boat?

You can use flex paste on a wide variety of surfaces such as wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, fiberglass, ceramic, porcelain, natural stones, roofing, pvc, eifs, epdm, cspe, hypalon polyurethanes and so much more. Flex seal liquid works in the most extreme conditions.

Can you patch a fiberglass hull?

0:3715:14Fiberglass Hull Repair how to easily fix a thru hull hole - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo in order to to do this fiberglass repair we're going to need fiberglass resin you can you knowMoreSo in order to to do this fiberglass repair we're going to need fiberglass resin you can you know use any type of resin.

Can you repair fiberglass with epoxy?

Epoxy is a great adhesive One reason that an epoxy product such as WEST SYSTEM® Epoxy is so useful for fibreglass boat repairs is that it's an incredibly effective adhesive. It creates a resilient bond to fibreglass, cured polyester laminates, wood and metals – even when you only use a thin film.

How do you fix a deep scratch on a boat?

0:592:37Fiberglass Repair Kit - YouTubeYouTubeStart of suggested clipEnd of suggested clipUse the brush to saturate the repair. Area place a piece of fiberglass on the repair area. AndMoreUse the brush to saturate the repair. Area place a piece of fiberglass on the repair area. And saturate the fiberglass with the resin. Continue to layer on the fiberglass. And the resin.Fiberglass Repair Kit - YouTubehttps://www.youtube.com › watchhttps://www.youtube.com › watchSearch for: How do you use a Fibreglass repair kit?

How do you fix a small crack in a fiberglass boat?

5:3421:27How To Repair Deep Scratches On Your Boat Using Alexseal Paint!YouTubeStart of suggested clipEnd of suggested clipBut for the most part this initial sanding I'm gonna be using the 800 like I said to do all of theMoreBut for the most part this initial sanding I'm gonna be using the 800 like I said to do all of the initial. Knockdown of these edges around the perimeter.

How do you fix a hole in a boat?

1:478:44How To Fix Spider Cracks, Hairline Cracks, and Crazing in ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt is to use a syringe. So I'm going to suck up a syringe full of gel coat. And then I'm going toMoreIt is to use a syringe. So I'm going to suck up a syringe full of gel coat. And then I'm going to squirt this into a paper cup.

How do you use gelcoat Putty?

8:1212:09How to Fix a Hole in Your Boat DIY (Below the Waterline) - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd let's fill this hole with epoxy. All right so with this thickened epoxy adhesive let's removeMoreAnd let's fill this hole with epoxy. All right so with this thickened epoxy adhesive let's remove this mixing spout. And then pop the cap. Off. And then tighten the mixing spout back on.

How to mix gel coat?

Mixing gel coat is a messy and stinky process—so wear chemical-resistant gloves, safety goggles and a respirator. Start with a small amount of gel coat and stir in the chop and hardener to make a putty that’s the consistency of peanut butter (Photo 3).

What is the gel coat on a fiberglass boat?

All fiberglass boats have a thick structural core of fiberglass strands impregnated with polyester resin. But the part you actually see is the gel coat. That’s the thin layer of pigmented resin that gives the boat its sheen and color. Most light scratches are in the gel coat layer.

How to fix deep scratches on boat?

To fix gouges and deep scratches, you’ll need “chop” (powdered fiberglass) filler, gel coat and gel coat reducer. Jot down your boat’s model and serial numbers and contact the manufacturer to order gel coat (about $100 per qt.) to match your boat’s color.

What is a repair pro?

A repair pro shows you how to make invisible fixes for scuffs, dents and scratches in fiberglass boats and other fiberglass items. You'll save a ton of money if you're patient and use the proper tools.

How long does it take for resin to harden?

Once you add the hardener, you’ve only got a 10- to 20-minute “open” time, so mix small batches and work on one gouge at a time. Thorough mixing is critical to proper curing. Spend a full minute stirring. If you don’t, you’ll end up with patches of sticky resin that can take days to harden.

Where are light scratches in a car?

Most light scratches are in the gel coat layer. They can be sanded out and the area built back up with new gel coat. But if they penetrate the core, they need to be filled. You can tell that the scratch is into the core if you see fiberglass fibers (Photo 2).

Can you spray gel coat on fiberglass?

Spraying gel coat isn’t like spraying paint. It splatters on and has to be sanded and buffed to get to a smooth gloss. So don’t be disappointed that the finish isn’t paint-like right away during your fiberglass boat repair.

What are the different types of fiberglass cloths?

Some of these cloths include chopped strand mat, biaxial mat cloth, woven roving cloth, continuous roving cloth, carbon fiber cloths, and the list goes on and on.

What is the core material of a boat?

The core material is just the material that is encapsulated by the fiberglass cloth and resin. Core material on boats is usually balsam wood or a foam core. However, almost any material can become a core material.

What is the purpose of a fiberglass mat?

The fiberglass fabrics will be your main structural material, but you may end up using a fiberglass mat to help you work around turns and to help waterproof low-stress areas like the live wells. With these fabrics, you’ll also have different weights.

How thick is fiberglass for repairs?

For professional repairs of ocean-going hulls, the surrounding fiberglass is ground back on a slope of 1:12 to make a large area to be repaired; a 1/2″ thick fiberglass structure would be ground back 6″ in every direction from the hole.

What is fiberglass used for?

Fiberglass Basics You Should Know. Fiberglass is a wonderful material that can be used to repair all sorts of things. Learn how to work with fiberglass, and you can repair boats, vehicles, bathtubs, and many other items. You can even learn to create your own parts, canoes, and even coolers. An entire lifetime could be spent learning how ...

How long does it take to paint fiberglass?

The way you’ll do this is you’ll mix up a small amount of resin that you can successfully paint on over the fiberglass within about 15 to 20 minutes. This is about how much time you’ll have before the resin begins to dry and harden.

How thick is boating fabric?

These weights will help determine how thick and strong the material is. Popular boating fabric weights are 10 ounces, 6 ounces, 4 ounces, and 1.5- ounce cloths. These fabrics are sold by the yard and generally come in widths between three and five feet.

Step 1

Cover undamaged areas of the hull close to the area to be repaired with newspaper. Mask the edges with tape. Use the rotary tool and a pointed grinding bit to dig out the damaged gelcoat. Bevel the edges around the damaged area and grind away the damaged part down to the fiberglass. Be careful not to gouge the fiberglass.

Step 2

Roughen the surface in and around the chip or dent with 80-grit sandpaper to give the gelcoat a rough surface to adhere to. Blow out the dust from the repair area and blot it clean with acetone. Allow the damaged area to dry thoroughly.

Step 3

Mix a small amount of gelcoat in your mixing container according to manufacturer's directions. Add color tint solutions in the proportions and shades suggested by the color matching chart that comes with the tint colors.

Step 4

Add the MEKP catalyst as directed. Be sure to get the catalyst proportions right. Too much will prevent the gelcoat from hardening and create air bubbles. Too little can increase drying time.

Step 5

Fill the damaged area with about 25 percent more gelcoat than you need, to allow for shrinkage. Allow the gelcoat to cover slightly outside the repair area so that all the edges are fully covered. Pop any air bubbles that form with a sharp tool or knife point.

Step 6

Wait at least four hours for the gelcoat to harden. Meanwhile clean up any mess with acetone and paper towels. Allow the repair to cure overnight before sanding.

Step 7

Wipe down the repaired area with acetone and a rag to remove any tackiness. Tape around the edges of the new gelcoat to protect the existing hull. Sand the repaired area with increasingly fine grades of wet/dry sandpaper, starting with 320, then 400 with the orbital sander till you get level with the old hull.

What happens if a boat gelcoat is chipped?

The quality of your boat’s appearance is largely the result of its fiberglass. If the fiberglass gelcoat is damaged, dinged or chipped, it s going to throw off the entire smooth exterior. Left unchecked, these issues can even spread to surrounding areas.

What is gelcoat on a boat?

Keep in mind that the gelcoat is the first line of defense between your boat and the marine environment. It’s essentially the boat’s “skin.”. If you don’t take care of it, it will affect the entire appearance and even performance of your boat.

How to apply gelcoat?

Apply The Gelcoat. Tape off the area and mix the gelcoat. Then, once you’re sure you have a thoroughly mixed gelcoat ready for application, put it on. The tape will ensure that you aren’t adding more gelcoat to surrounding areas. After mixing, you’ll have a window of about 10 or 15 minutes with which to work.

Do you need to wax a boat to get a gelcoat look?

To do that, you’ll need a great routine for cleaning and waxing your boat, and you need to understand what to do if some of your gelcoat chips off. The good news is that it doesn’t have to be difficult.

Does gelcoat fade?

Your gelcoat has a specific color, so it begins with matching your repairs to that color. According to Boating Magazine, you’ll need to be careful here, as the rest of your original gelcoat color may have faded with time.

Can you use color restorer on fiberglass?

But if your fiberglass damage is more serious, it’s important not to skip them.

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