Difficulty

Moderate

Steps

2

Time Required

                          30 minutes - 1 hour            

Sections

1

  • How to fix autobody dents and cracks
  • 2 steps

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Introduction

What you need

Step 1

              How to fix autobody dents and cracks               
  • Clean the area around the spot you wish to repair with water and if necessary, soap.
  • Always wear disposable gloves when working with Bondo. A painters mask and full length clothing is also recommended to help prevent breathing noxious fumes and skin irritation.
  • Mix the body filler and its hardener per the instructions on their containers.

Clean the area around the spot you wish to repair with water and if necessary, soap.

Always wear disposable gloves when working with Bondo. A painters mask and full length clothing is also recommended to help prevent breathing noxious fumes and skin irritation.

Mix the body filler and its hardener per the instructions on their containers.

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Step 2

  • Fill the dent, gap or crack with the body filler and hardener mix. You can use paper, tape or your hands to smooth out the filler while it is still in putty form.
  • It is recommended that you apply several thinner layers of filler to deep dents and cracks to prevent having a porous finish.
  • It is recommended that you wipe off excess Bondo and smooth out the Bondo as much as possible before it dries to minimize the sanding required.
  • Once the Bondo has fully dried, typically around 20-30 minutes, sand the area so that it to the desired contour.
  • If the Bondo you bought isn’t the color you want, follow our hand-painting guide to help match the color of your part.

Fill the dent, gap or crack with the body filler and hardener mix. You can use paper, tape or your hands to smooth out the filler while it is still in putty form.

It is recommended that you apply several thinner layers of filler to deep dents and cracks to prevent having a porous finish.

It is recommended that you wipe off excess Bondo and smooth out the Bondo as much as possible before it dries to minimize the sanding required.

Once the Bondo has fully dried, typically around 20-30 minutes, sand the area so that it to the desired contour.

If the Bondo you bought isn’t the color you want, follow our hand-painting guide to help match the color of your part.

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                    Miroslav Djuric                     

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Donna - Mar 10, 2020

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What grit sandpaper should be used for this? The article doesn’t say.