Your cart is empty.
Your cart is empty.
Bondo Original Filler instructions:
Step 1: Clean all surfaces with soap and water followed by a low VOC compliant cleaner. Allow to dry.
Step 2: Sand the damaged area with 80 grit sandpaper to remove all paint, primer, and rust down to bare metal. Sand 1-2 inches beyond damaged area. Clean again with a low VOC compliant cleaner.
Step 3: Stir the filler before using. Knead the hardener tube. For a 3-inch diameter puddle of filler, squeeze out a 3” long strip of hardener. This is the maximum recommended amount to mix at any given time for optimal application. Mix thoroughly to a uniform color on a clean, non-porous surface. When product is mixed, the working time is 3-4 minutes. Do not add hardener directly into the filler container.
Step 4: Spread an initial thin layer of the mixed filler over the repair area using firm pressure to ensure maximum adhesion. Apply additional layers of filler as needed. Allow filler to cure 20 minutes.
Step 5: Rough shape the filler with 80 grit sandpaper. Finish sand with 180 grit and finer. Featheredge the repair. Wait 45 minutes and apply 2-3 coats of primer to cover the repair area.
Step 6: Apply Bondo Glazing and Spot Putty to fill in small imperfections and re-prime with 2-3 coats. Follow paint manufacturer’s recommendation for priming and final finishing.
For best results apply at 45°F (7°C) or above. Do not put mixed filler back in the can. Clean tools with acetone or lacquer thinner.
Lakeside49
Reviewed in the United States on February 19, 2025
Mixing the bondo is very straightforward - I use a wooden paint stirrer to scoop the required bondo paste onto a paper or plastic plate then squirt a dab of the red catalyst paste (in a resealable tube that comes in the enclosed top lid) and stir it all together. You'll have about 2-3 minutes before it hardens beyond the ability to mold it, so plan ahead. I used it recently to smooth out the flaws on my deck, as done before, and anticipate 5-7 years before having to do it again.
Rangepony
Reviewed in the United States on January 8, 2025
I've used this Bondo many times. It was easier to buy online and have it shipped then to go hunt for it. It's always worked good for me. Will continue to keep buying, packaged well. Shipped fast. Price was reasonable.
J Field
Reviewed in the United States on January 20, 2025
Delivered in 4 days because it does not ship by air. I used it to cover up a 1" gap between galvanized a steel culvert and extruded polystyrene panels, with fiberglass cloth backing. It does work on polystyrene, although it tends to erode the foam surface a bit before hardening. Does not come with instructions, see online videos. Basically, stir the can of Bondo, knead the tube of hardener, extract 20% (or less) of the can onto a 12"x12" flat non-porous surface (not the plastic dish it comes with), and mix in a proportional amount of hardener. Spread with disposable putty knife within five minutes as the material begins to harden and get lumpy after that. Use gloves.
William A.
Reviewed in the United States on January 2, 2025
Bondo Body Filler, Original Formula, is a reliable solution for quick and effective vehicle repairs. It's easy to mix and apply, making it ideal for restoring dents, dings, and minor damage on cars, trucks, and other vehicles. The filler dries quickly and can be sanded smoothly, providing a solid base for paint. Its durability ensures long-lasting results, making it a go-to for DIY auto repairs. Overall, Bondo is a trusted product that delivers fast, hassle-free repairs for vehicle restoration.
Alexis
Reviewed in the United States on January 18, 2025
I use this to fill in my 3d prints before i sand and apply primer. It works good but sometimes I mess up the ratio of the blue tube like a bum and have to put the bondo on quickly. Other than that, bondo is pretty useful for covering all the gaps and things that some puttys can't fill. Always make sure you're using this outside or in a well ventilated area. 💀🥶🥶
Benjamin Lehman
Reviewed in the United States on July 13, 2024
I've never used bondo before, but it's the first name in autobody repair. So, when my girlfriend's car got a huge dent in it, I bought some and decided to give it a go. Honestly, it was way easier than I thought. I'm no stranger to epoxy, tho. I've done sculpture and I've worked with similar materials so I am not a complete novice, but it's amazing easy to work with and as long as you're handy with a sander between applications, you can pretty much take away any dent within reason. For the record, the dent I fixed was actually fairly large - let's say 6 inches deep and maybe half the size of a basketball. Anyway, this stuff worked great! Car looks good again!
Stringer
Reviewed in the United States on October 28, 2024
Very handy and reliable .
Richard R. Carravetta
Reviewed in the United States on January 24, 2016
Great product at a good price. I always keep a can in stock for various odd jobs.It goes a long way and the only reason I had to purchase another can is that I reached the practical shelf life of my old one. Since I have had my old can for at least a dozen years, I wan't too disappointed.It's primary use is for auto repair but I have used it more for other things.I often use this when I want to make repairs to plastic items. It beats superglue by a bunch and you can build up a good layer to support weak parts. It can be used for any material.I have found this product valuable for repairing damaged or decaying wood. I dig out the loose wood, seal it with Elmer's "Rotted Wood Repair", and then fill the voids and big spaces with 3 M Filler. It shapes well and is easy to sand. The finished repair can be painted with regular house paint. It leaves a solid surface that cannot be distinguished from wood and I guarantee that the repair will last. The only problem is that you cannot drive a nail into it. If you need to nail or screw into this product, you will meed an adequate pilot hole to work with. I have never had the need. I have done repairs on many outside surfaces including trim and window sills and have not seen any sign of weathering after a number of years in our Wisconsin weather.I have also used 3 M Filler to create molds for various purposes. It can be poured, formed, and machined to any shape. Just remember to use a release agent such as silicon spray. It works for both molds and parts and I have used it to make insulators for ham radio projects.This is a versatile product and will come in handy in any workshop.
Recommended Products
