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In the last couple of years, I have become a big fan of Bondo! Bondo can be used for all sorts of dents, scratches, and holes. It can be used on all sorts of surfaces from cars to wood. It dries very quickly, and when it’s dry, it’s very strong!
Join me in learning how to use Bondo. You’ll love having this product in your toolbelt.
- How to Use Bondo
- How Long Does Bondo Take to Dry?
- Is Bondo Waterproof?
- Using Bondo to Repair Wood
- Why is my Bondo Cracking?
How to Use Bondo
Here are some simple steps on how to use Bondo:
- Start by cleaning and preparing your surface. Lightly sand the area with 120-grit sandpaper (for more tips on sandpaper grits, head to this sandpaper guide). Completely remove all dust.
- It will dry quickly so work in small batches. Bondo recommends a 3-inch circle of putty to 1/2″ of hardener. Mix it thoroughly for about 2 minutes.
- Working quickly, to prevent the Bondo from drying, use a putty knife to apply your Bondo to the area of need. It will be hardened within about 15-20 minutes.
- Once it is hardened, sand the area flush with 120-grit sandpaper.
- Ideally, you should only need one layer of Bondo. But if your surface isn’t as smooth as you’d like, follow the same steps again to add another coat!
How Long Does Bondo Take to Dry?
How long does Bondo take to dry? Bondo hardens very fast! Within 15-20 minutes it hardens enough to be sanded.
Is Bondo Waterproof?
Is Bondo Waterproof? This definitely depends on the exact type of filler you use. But it is best practice to seal your Bondo with paint or a top coat to protect your project from water damage.
How to Use Bondo to Repair Wood
Why is my Bondo Cracking?
Why is my Bondo Cracking? It is most likely due to the two parts being poorly mixed. Make sure you’re mixing the two parts for at least two minutes. Repair the crack by applying a new, well mixed coat of Bondo on top of it.
