Bondo For Simple Wood Repairs

Bondo For Simple Wood Repairs
  • Opening Intro -

    Rotted and cracked wood on the exterior of your home can have you up in arms, especially if you are concerned that further damage can lead to problems within the home.


Use Bondo for small projects, replacing larger damaged areas with new wood.

While replacing the wood is one option for rectifying the problem, Bondo can repair damaged wood, making it like new.

What is Bondo?

Bondo is product developed in the 1950s that mixes polyester resin and talc to form a body filler. Used initially and primarily in automobile body repair, an all-purpose putty suitable for home use has also been developed.

Bondo Corp., based in Atlanta, was acquired by 3M in Nov. 2007 when parent RPM International Inc., a speciality costings and sealants company, sold the company.

How to Use Bondo

1. Prepare the affected area. Remove all rot and debris in the damaged wood, using a chisel, a screwdriver or a putty knife to clean out the affected area. Remove the remaining debris with a vacuum and then dry out the cleared out area with a hair dryer. You’re not done if damaged wood or moisture is present.

2. Mix and prepare. You’ll be mixing both a catalyst and a putty to form Bondo. With protective eyewear in place and a mask and gloves also used, extract a small amount of each component to determine the amount of Bondo needed for your project.

3. Apply the Bondo. A short mixing process will be quickly followed by an immediate application of the Bondo to avoid hardening. Spread the Bondo across the damaged area, filling in gaps as quickly as possible. Attempt to fill in the affected area flush with the surface.

4. Sand the finish. Bondo will harden quickly. Follow the instructions given on the can for each step, however it will be completely dry and ready for sanding after one hour. Fill in empty spots with more Bondo or wood spackle. Sand again, if needed.

Paint With Bondo

Once the Bondo has been sanded, evened and cleaned, you are ready to paint. No primer is needed, therefore apply your first coat and wait for it to cure before applying your second coat.

Admire your project as you just saved yourself a bundle of money and will have a look that is as good as new. Bondo can also be used inside your home, handling dings, dents and holes with ease.

See Also — Should You Renovate or Replace Your Wood Shed?

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Categories: Exterior Home

About Author

Matthew C. Keegan

Matt Keegan is a freelance writer and editor as well as publisher of "Auto Trends Magazine", an online publication. Matt covers campus, consumer, business and financial topics on various websites and weblogs, and has been published in the "Houston Chronicle", "Sam's Club Magazine" and "Wisconsin Golfer".