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How Thick Can Bondo Be? New Update

Let’s discuss the question: how thick can bondo be. We summarize all relevant answers in section Q&A of website Activegaliano.org in category: Blog Marketing. See more related questions in the comments below.

How Thick Can Bondo Be
How Thick Can Bondo Be

How thick is too thick Bondo?

So in the spirit of political correctness and repeating the party line ” Ideally filler should never be more than 1/8″ thick “. In real life I have seen bondo from another persons previous repair be two inchs thick and last 15 years or more with no problems until the car was damaged again in the repaired area.

Can you do multiple layers of Bondo?

Yes you can. Its standard practice when using filler to add many layers, rather than trying to pile it all on at once. Work with your hammer and dolly to reduce the amount of filler you will need. Aim to keep the bondo less than a 1/4 (preferably 1/8) inch.


How Thick Can Bondo Be? Will Auto Body Filler Crack, Shrink, Fall Out?

How Thick Can Bondo Be? Will Auto Body Filler Crack, Shrink, Fall Out?
How Thick Can Bondo Be? Will Auto Body Filler Crack, Shrink, Fall Out?

Images related to the topicHow Thick Can Bondo Be? Will Auto Body Filler Crack, Shrink, Fall Out?

How Thick Can Bondo Be?  Will Auto Body Filler Crack, Shrink, Fall Out?
How Thick Can Bondo Be? Will Auto Body Filler Crack, Shrink, Fall Out?

How deep can you put Bondo?

Thickness Matters

There is no minimum thickness for Bondo, but there is absolutely a maximum. You do not want to apply body filler to anything that is thicker than about a 1/4”. That does not mean it can’t be done, but the repair will not last as long.

How thick can filler be?

Body filler should be applied in thin layers from 1/8-inch to 1/4-inch thick, with dry time between layers. Polyester resin body fillers dry naturally with a sticky or tacky top surface.

Does Bondo shrink?

Bondo Fiberglass Resins and Repair Kits are 100 percent waterproof. Because they do not shrink, they are excellent sealers.

Do you have to sand body filler between coats?

Sanding is not needed between coats of bodyfiller, but it is advisable to smooth off any spikes or really rough areas to make further applications easier.

Can you put bondo over sanded paint?

It is normal for filler and puttie to work OK over OEM paint that has been properly sanded (80-180 grit). The aftermarket paint market is filled with a variety of different types (lacquer, enamel, urethane, water-based). Paint should be removed from the area where filler will be applied before it is applied.

Can you layer body filler?

If you are filling dents all over or one big one you need to rough out those FIRST before laying a “skim coat”. If you do this roughing with coarser paper (80 or even 40) you can perfect the whole panel little bits at a time or smaller than one big one at least.

Does Bondo harden without hardener?

Without it the bondo won’t get hard. Put a small piece of bondo on a board and run a line of hardener from end to end. It will take about five minutes to mix it up and apply it.

Can I fill a hole with Bondo?

While “Bondo” is the name of a 3M product, it has also become a generic term for plastic body filler, and several companies make similar stuff. The putty can be useful for filling rust holes in the most rust-prone areas of a car including quarter panels, fenders over and behind the wheels, and the bottoms of doors.

Are body fillers strong?

We often get asked about metal body fillers or reinforced fillers and what they are. These fillers are incredibly strong but do have their place in the body shop.


Why does Bondo crack or why does body filler crack

Why does Bondo crack or why does body filler crack
Why does Bondo crack or why does body filler crack

Images related to the topicWhy does Bondo crack or why does body filler crack

Why Does Bondo Crack Or Why Does Body Filler Crack
Why Does Bondo Crack Or Why Does Body Filler Crack

How do you Bondo a deep dent?

How to Fix a Dent in a Car
  1. Clean the Car and Remove Any Residue. …
  2. Remove Paint from the Dented Area by Sanding. …
  3. Start Working on the Dent with a Hammer, Mallet, or Dent Puller. …
  4. Mix Bondo and Put Down the First Layer of Body Filler. …
  5. Shape the Filler with a Sanding Block. …
  6. Smooth Out the Filler with a 180 Grit Abrasive Sheet.

Will Bondo crack on wood?

But when you try to fuse Bondo and wood together, you’re likely to encounter the following scenario: Air and weather changes prompt wood to move. The Bondo used to fill this wood remains constant. As the wood swells and shrinks, it applies pressure to the Bondo that forces cracking.

How thick can you apply wood filler?

How Thick Can Wood Filler Be? Try not to go thicker than half an inch. A 1/2 in deep and 3/8 wide would be good. But you can go as long as you wish.

How long does a Bondo repair last?

If applied correctly, Bondo can last for more than five years. In most cases, Bondo filler lasts for two to three years. There are car owners who have had Bondo hold on to their vehicle’s bodies for even eight years.

Does Bondo fall off?

Bondo will last a long time if used properly. It is used to finish off small imperfections in you body work. It will not work to fill holes thru panels.

How long does Bondo take to dry?

Allow the putty to dry 15 minutes at 77 degrees F (25 degrees C). In cooler climates, putty may take 20-30 minutes to dry. 7. Using 3M™ Sandpaper 80 grit, sand and shape the filled area to the contour of the surface.

Can you thin Bondo with acetone?

What Other Ingredients Can I Use to Thin Bondo? If you don’t have polyester resin or Plastik Honey, you can always use acetone.

What grit sandpaper do I use for Bondo?

Directions for Use

If grinding is needed use a 3M™ 36 or 40 grinding disc followed by 3M™ 80 grit sandpaper if no grinding is required, sand the surface with 3M™ 80 grit sandpaper to remove all primer, paint and rust 1 to 2 inches beyond the outer edges of damaged area. Remove all dust created from sanding.

How long can Bondo be left unpainted?

Between life and work, the longest time period the bondo would go Unpainted would be about 2-3 weeks.

Do you primer before Bondo?

NO, never. bondo goes over bare steel only. Never over any kind of paint, primer, etc.


Tech Tips: The Do’s and Don’ts of Body Filler

Tech Tips: The Do’s and Don’ts of Body Filler
Tech Tips: The Do’s and Don’ts of Body Filler

Images related to the topicTech Tips: The Do’s and Don’ts of Body Filler

Tech Tips: The Do’S And Don’Ts Of Body Filler
Tech Tips: The Do’S And Don’Ts Of Body Filler

Should you prime before body filler?

46 Epoxy primer must dry for one hour and all metal work must be completed before starting the body filler process. Applying body filler over epoxy primer provides maximum corrosion protection for the metal. Apply filler within seven days of applying epoxy primer to maximize adhesion.

Do you have to Prime Bondo before painting?

Do You Need To Prime Bondo Before Painting? To help your top coats adhere to the metal, you should use a “direct to metal” primer (DTM), but it is not usually necessary under body filler. Once the metal is primed, you can apply a “filler primer” (2K) to hide scratches and minor surface scratches.

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