Repairing Guides

how to do fiberglass repair on car

by Mitchel Wunsch Published 2 years ago Updated 1 year ago
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How to Repair Fiberglass Body Panels

  • Surveying The Damage. Throughout this car’s life, there have been some bumps and scrapes which have caused some damage to the body.
  • Repairing A Fiberglass Crack. There are several factors that go into making a good fiberglass repair. ...
  • Repairing A Fiberglass Hole. Sometimes you need to fix a mod that was done by a previous owner. ...
  • Finishing. ...

Part of a video titled How to Fix Rust Holes on a Budget Using Fiberglass - YouTube
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And behind that panel to stick it in place the exposed metal edge. Basically needs to be sandwichedMoreAnd behind that panel to stick it in place the exposed metal edge. Basically needs to be sandwiched between the fiberglass layers. The more layers of fiberglass the stronger the repair will be if.

Full Answer

How to work with fiberglass for car repair?

Repairing Fiberglass

  1. Materials and Tools. DISCLAIMER: Working with Fiberglass is rough. ...
  2. Surface Preparation. We went through and identified all of the holes that we needed to patch, and most of them were on vertical surfaces.
  3. Preparing the Patches. ...
  4. Mixing the Resin. ...
  5. Glassing in the Patches. ...
  6. Filling Small Holes. ...
  7. Backfill, If Necessary. ...

How much does fiberglass repair cost?

Higher-quality materials typically require higher costs, with fiberglass and gelcoat repair costs reaching as high as $450. According to a FamilyHandyman.com article, most hired-out repairs of any kind are approximately 50 percent labor and 50 percent materials.

How to repair broken fiberglass?

  • You can sand the pole edges to get a smooth finish by removing the duct tape and sanding the duct tape off the pole.
  • Place the full pole of your tent on a hard surface and carefully untie that Knot. ...
  • Carefully remove the pole sections from the shock cord until you reach the broken part.

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Are fiberglass cars safe?

The pontiac fiero (fiberglass body) was the one of the safest cars when it was produced, second only to a volvo IIRC. They're hard to compare. It'll mostly come down to how the car was designed. I don't think you can call one material better than the other.

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Can you fix a cracked fiberglass car?

2:4719:12How To Fix and Repair Fiberglass Stress Cracks - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou will have to go to another source of repair to to really fix it properly. And that's usingMoreYou will have to go to another source of repair to to really fix it properly. And that's using fiberglass resin mixed with fiberglass mat to make a paste.

How do you fiberglass a car parts?

1:0612:00How to Make Fiberglass Car Panels - YouTubeYouTubeStart of suggested clipEnd of suggested clipThat you can use to blend in the edges in the past I've used plaster. Or you can do the whole thingMoreThat you can use to blend in the edges in the past I've used plaster. Or you can do the whole thing with body filler the problem with that is it ends up being a fairly expensive exercise.

How do you restore a fiberglass car body?

0:3520:13Fibreglass Repairs - YouTubeYouTubeStart of suggested clipEnd of suggested clipWasn't too bad this damage I've seen much worse on fiberglass parts but you'll be able to useMoreWasn't too bad this damage I've seen much worse on fiberglass parts but you'll be able to use exactly the same message no matter what kind of repair. I would imagine. If you sort of gluing.

What is the best way to repair fiberglass?

Fiberglass is rather easy to repair....How to Repair a Crack in FiberglassDrill a tiny hole at each end of the crack. ... Examine the crack. ... Wipe the crack with a dry rag to make sure it's clean and dry. ... Fill the crack with a fair amount of fiberglass epoxy resin, using a plastic applicator. ... Let the epoxy dry for a day.

What is gel coat on fiberglass?

Gel coat is the most common surface coating used in the fabrication and repair of fiberglass reinforced products. Gel Coat is a specially formulated two-part polyester resin that is designed to be the first layer of resin applied in a mold when making a polyester or vinyl ester composite part.

How do you cast fiberglass?

1:1313:05CASTING With GELCOAT & FIBREGLASS - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo now I'm putting some talking powder into the mold. So this is going to act as a mold release whenMoreSo now I'm putting some talking powder into the mold. So this is going to act as a mold release when we put the fiberglass inside the mold and the gel coat.

What type of fiberglass is used for cars?

Most fiberglass yarn is called E glass, which was designed originally as a boat and tooling fabric but, of course, is excellent for all parts of automobile fabrication. Although it has been available since the 1940s, it is still the most widely used in the most economical all-purpose composite reinforcement.

How do you do fiberglass body work?

4:3523:01How to Fix Rust Holes on a Budget Using Fiberglass - NO WELDINGYouTubeStart of suggested clipEnd of suggested clipClean the surface using a wax and grease remover. And a clean rag gloves are highly recommended whenMoreClean the surface using a wax and grease remover. And a clean rag gloves are highly recommended when working with fiberglass. The fibers can embed in your skin causing irritation.

How do you repair rust holes in fiberglass?

0:0516:54How to Repair a Rust Hole with Fiberglass - No Welding! - YouTubeYouTubeStart of suggested clipEnd of suggested clipFor years auto body repair shops have used fiberglass for rust repair. Because it bonds so well toMoreFor years auto body repair shops have used fiberglass for rust repair. Because it bonds so well to metal. So if you don't have a welder and you still want to do some bodywork the method you're about

How strong is a fiberglass repair?

While the exact number for the specific strength of fiberglass varies depending on the specific composite, a good average is about 1,307 kN m/kg. For comparison, stainless steel's specific strength is 63.1, and titanium is 260.

What is the best paint to use on fiberglass?

Acrylic Latex Acrylic paint adheres well to fiberglass, overcoming one of the main challenges to painting this material. Acrylic paint is less likely to crack and blister, and will hold up well to cleaning. This water-based paint is easy to apply, and contains fewer chemicals, so is more environmentally friendly.

How do you fill a hole in fiberglass?

1:204:44How to easily fix drilled holes in fiberglass - YouTubeYouTubeStart of suggested clipEnd of suggested clipWe're going to use a fiberglass putty you can use gorilla hair you can use a bondo i happen to likeMoreWe're going to use a fiberglass putty you can use gorilla hair you can use a bondo i happen to like the bondo. It's you got to get the right one you have to get the one made for fiberglass.

How do you make fiberglass parts at home?

7:089:08How To Make Fiberglass Part - Part 1 - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing a mat roller greatly helps lay the mat down and remove bubbles. Apply several layers to giveMoreUsing a mat roller greatly helps lay the mat down and remove bubbles. Apply several layers to give the mold the necessary rigidity three to six layers will be adequate for this mold.

How do I make a fiberglass mold out of an existing part?

7:289:25How to Make a Fiberglass Mold from an Existing Part - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo Tim's gonna apply three layers of wax. You. Apply the wax with a rag and then give it a fewMoreSo Tim's gonna apply three layers of wax. You. Apply the wax with a rag and then give it a few seconds or minutes to flash off and then buff it up to a high gloss.

How do you make a fiberglass body kit?

3:4015:34How to Make a Wide Body Kit - YouTubeYouTubeStart of suggested clipEnd of suggested clipLet it get tacky put another layer of fiberglass on then I mixed more resin up put that resin on theMoreLet it get tacky put another layer of fiberglass on then I mixed more resin up put that resin on the fiberglass to let it get tacky. And I would put another layer of fiberglass.

How do you make custom fiberglass?

2:0019:36BUILDING CUSTOM FIBERGLASS PARTS AT HOME - YouTubeYouTubeStart of suggested clipEnd of suggested clipLike what you would see with like carbon fiber. And it's very strong it doesn't flex and bend asMoreLike what you would see with like carbon fiber. And it's very strong it doesn't flex and bend as much as the mat does because that's all just glued together this is actually woven into a fabric.

How to repair rust on a sandpaper?

Use the Sandpaper 80 grit to sand the damaged area. It will remove all the rust, paint, primer, and gel-coat. Sand the other side of the damaged spot too because repairing both sides will strengthen the surface. Clean the area again with acetone or soapy water.

How long does resin hardener take to work?

Then mix the resin with the hardener in the mixing tray. Blend in small amounts and remember that the working life of the mixture will be nearly 8 to 12 minutes at 75°F. You have to use ten drops of hardener for one ounce of resin.

Can fiberglass be repaired?

There are several methods for repairing it, but using a fiberglass repair kit is probably the easiest solution. There’s no need to have any prior experience because a kit includes all the materials and directions required for a DIY project.

How to repair a fiberglass sandpaper?

You cannot start using the fiberglass cloth until you’ve prepared the surface to accept it. Start by using coarse-grain sandpaper on the entire area on and around the repair. The surface has to be scuffed until it’s smooth to the touch and dull.

How to mix resin for a sanding machine?

To mix the resin, pour it into a bucket along with the hardener. Use the proportions indicated on the containers. Put on a pair of latex gloves before working with the resin mix, then stir the mix very thoroughly until you achieve a smooth consistency. Take the felt roller, dip it lightly in the resin mixture and roll it lightly over the repair area to leave a very light coating.

Can you use fiberglass cloth to repair a car?

Although bodywork can seem complex and intimidating, it's actually quite easy. It takes a little patience and it can be slightly messy, but you'll find you can easily make a repair to your car body using fiberglass cloth.

What is the key to fiberglass repair?

There are several factors that go into making a good fiberglass repair. The key is locking the new material to the old. While cleanliness is paramount, that is only half of the equation. Even with the surface clean and prepped, a mechanical bond is needed to secure the actual repair.

How to fix a crack in a car body?

After cleaning the area with an 80-grit sanding pad on a die-grinder, a series of holes were drilled into the body on either side of the crack. These are ½” holes. It is also a good idea to drill the ends of the crack to stop its progress. The holes will connect both sides of the repair, locking it all in place.

How long does it take to mix polyester resin?

Polyester resin is a 2-part substrate that when properly mixed yields a work time of about 15 minutes. The hardener, MEKP (Methyl Ethyl Ketone Peroxide), is added in very small amounts compared to the resin base.

What car had a purple metal flake?

Take for instance the 1967 Corvette convertible we have here. In the 1970s, this was a cool show car with a deep purple metal flake paint job and an 8-71 blower hanging out of the hood. The car had been sandblasted, which is a huge no-no for fiberglass, but moreover, the glass itself was in rough shape.

Is fiberglass adhesive good?

The previous owner had attempted a repair on the underside, but this just popped off with a screwdriver, not good. Fiberglass is not an adhesive; it just doesn’t work that way.

Can fiberglass be repaired?

Sure, once the initial cure is completed, this process slows down significantly, over time the resin gets brittle. In the automotive environment, this means cracks, breaks and splits in the body of your Corvette. Add to that some of the more “adventurous” owners of many of these cars, you may have to repair fiberglass panels to get things back to normal. Take for instance the 1967 Corvette convertible we have here. In the 1970s, this was a cool show car with a deep purple metal flake paint job and an 8-71 blower hanging out of the hood.

How to repair cracked fiberglass?

To fix fiberglass that has cracked, you must first assess the extent of the damage and then prepare the surface. By removing all of the damaged material and exposing solid fiberglass you will be able to effectively add epoxy resin and sheets of additional fiberglass to repair the area. Steps.

How to clean fiberglass sanding?

After the surface is sanded down, you need to get everything off the surface so that the epoxy and fiberglass patch will stick. Use a rag or paper towel soaked in acetone to wipe down the entire area, including all of the internal edges of the fiberglass that you opened up.

How to smooth epoxy?

Consult the curing directions on the epoxy packaging. Once the designated amount of time has passed, start smoothing out the patch area. Start with 80 grit sandpaper to get large areas of excess epoxy off. Then switch to 240 grit sandpaper to smooth out the surface.

How to fill a hole in epoxy resin?

Mix epoxy resin, hardener, and filler together. In order to fill a small hole, you need a mixture of these three components. Consult the instructions that came with your epoxy resin to determine how much of each material you need. It is very important to get your proportions right, so follow the directions closely.

How to keep fiberglass dust out of your eyes?

Put on personal protective equipment. This includes gloves, eye protection, and a dust mask or respirator. It is most important to keep fiberglass dust out of your lungs and eyes. You also want to keep it off of your skin if possible, as it can cause irritation.

What is fiberglass used for?

Fiberglass is a strong and versatile material that can be used to make a variety of things, including bumpers, showers, and boats. While it is a useful and lightweight material, it can be damaged relatively easily.

What to do if you spill epoxy?

If you overfill the hole or spill some epoxy outside of the hole, wipe it up with a rag right away. Then smooth out the surface.

What to wear when working with fiberglass?

When working with these materials it is important to wear a respirator, gloves, and safety glasses. It is advised that you wear a paint suit to cover all skin that could be exposed to fiberglass particulate.

What is the difference between fiberglass and resin?

When you glass in the patches, think of it as making a sandwich. The resin is your bread, and the fiberglass is your meat and cheese and fixins. You start with a paintbrush and apply a layer of resin to the area which will be receiving the patches.

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