How To Use Bondo Fiberglass Resin Repair Kit

By Tsukasa Azuma

Last updated Apr 26, 2022

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Fiberglass is an adamant material, but information technology may besides develop cracks or holes under rough atmospheric condition or if confront any accident. At that place are several methods for repairing it, simply using a fiberglass repair kit is probably the easiest solution. At that place's no demand to have any prior experience because a kit includes all the materials and directions required for a DIY project.

Repair Fiberglass

To know its utilise, you commencement have to almost the materials come up with a standard kit and the additional items you may demand for repairing the crack or hole.

Materials in a Fiberglass Repair Kit

• Fiberglass resin
• Hardener
• Plastic spreader
• Fiberglass fabric
• Mixing stick
• Mixing tray

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Additional Items Required for the Project

• Acetone or lacquer thinner
• Sandpaper 80 and 180 grit
• Sanding block
• Measuring cup
• A paintbrush
• Rubber gloves
• Scissors

How to use a fiberglass repair kit to set up a damaged expanse

Let's accept a look at our fiberglass repair guide with the step by step instructions:

Step 1: Cleaning the damaged area

Use acetone to clean the damaged area. If you lot don't take information technology, soapy water will also be useful for removing the clay, oil, grease, and other ingredients. Let it air-dry completely or use a piece of dry cloth to wipe the area.

Step 2: Sanding the damaged surface area

Use the Sandpaper 80 dust 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.

Step iii: Making resin and hardener mixture

Cut several pieces of fiberglass cloth to i-inch larger than the cracked or holed area. Then mix the resin with the hardener in the mixing tray. Alloy in small-scale amounts and remember that the working life of the mixture will exist nigh 8 to 12 minutes at 75°F. You have to apply x drops of hardener for one ounce of resin.

Step four: Applying a coat of mixture

Utilize the paintbrush to use a coat of mixed resin on the damaged area. The resin should cover the area that extends ii to 3 inches across repair. Then, place a piece of fiberglass cloth onto the damaged spot and saturate it with the mixed resin. Go along applying layers of material pieces and resin until the area is repaired completely. Follow the same procedure for the both sides.

Step 5: Drying then sanding the damaged expanse

Let the area dry out properly. The curing will be better if the temperature of the identify remains at 75°F. After that, sand the area with Sandpaper fourscore grit. You lot can utilise a body filler at this stage to smoothen the pocket-size curves.

Footstep vi: Sanding the profile of the repaired expanse

Employ the Sandpaper 180 dust on the contour of the repaired expanse then that it blends with the rest of the surface.

Bank check out this video for more details about how to apply fiberglass repair kit

Now, your car is set for the pigment chore. While using the fiberglass repair kit, e'er remember to use mitt gloves while touching the fiberglass cloth and resin mixture. Likewise, dump the unused resin because putting it back into the container volition spoil the rest of it.

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Source: https://carfromjapan.com/article/car-maintenance/step-step-guide-use-fiberglass-repair-kit/

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