What is the best body filler?

We have listed the top three rated car body fillers below;

  • 3M Bondo 261 Lightweight Car Body Filler.
  • Permatex 25909 Liquid Metal Filler.
  • Evercoat 156 Lightweight Car Body Filler.

What kind of body filler should I use?

Standard grade is a great option for minimal hail damage and small rust spots, while premium grade should be used for actual tears or a large surface area. Standard grade body fillers are a lightweight substance or putty that spreads easily and cures in about 20-25 minutes.

What is the easiest body filler to work with?

Polyester Glaze

They can be applied over bare metal, fiberglass, other fillers, and cured 2K Coatings. They are thin and easy to work with.

Is it better to use Bondo or fiberglass?

Fiberglass is More Durable than Bondo

The first key difference between these two is in regards to durability. Fiberglass is way stronger than Bondo resin. Therefore, when you use fiberglass filler, expect it to outlast car parts that have Bondo.

What is the maximum thickness of body filler?

4. Apply a thin layer using firm pressure to ensure maximum adhesion being sure to “wet out” the surface completely. Apply additional filler in layers, building up the damaged area higher than the surrounding surface. Maximum filler thickness should not exceed 1/4 inch.

36 related questions found

Can you build up 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.

What's the difference between Bondo and Bondo glass?

Even though it isn't as strong as Bondo hair, Bondo glass works perfectly without backing strips. Bondo glass comprises short strands of fiberglass that are interlocked together. It is way better than regular Bondo. And if you want lasting results, this is what you should use on your car.

How long does fiberglass body filler last?

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.

What is the difference between Bondo body filler and Bondo glass?

"Bondo Glass" is a short strand fiberglass filler, I goes on like Bondo, but it is made of fiberglass, so it is stronger, it's also a little harder to sand then regualar bondo.

Is there something better than Bondo?

Permatex 25909 Liquid Metal Filler

Unlike the Bondo filler, the Permatex product is ready to use, it does not need any mixing. This filler is compatible for many materials, but only comes in a small tube. Due to this, it is designed for small areas of damage to be repaired (such as cracks and holes).

What is the difference between body filler and putty?

“The difference between putty and filler is basically the “talc” in the product. Most of our Rage line of fillers have Eco-Resin technology. With that, we use similar ingredients to putty. Therefore, when using it, the putty is no longer necessary in the repair process.”

What body filler is easiest to sand?

The filler I've been using with great results is the 3M Platinum Plus easy to sand and no pin holes . After filling don't forget to HiFill to level the surface and sand off. If not using HiFill prime then putty sand flat then prime again . There are also a professional range of paint products for timber/wood products .

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.

Is Bondo body filler waterproof?

Choose between Bondo Fiberglass Resins, Bondo Fiberglass Repair Kits or Bondo Body Fillers. Bondo Fiberglass Resins and Repair Kits are 100 percent waterproof. Because they do not shrink, they are excellent sealers.

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.

Is Bondo any good?

They are ALL good fillers, just that the cheaper fillers are more coarsely ground, sand a little harder and takes more labor effort to work with. On the other hand the premium lightweight fillers are easier to work with, sand easier and do a better job of finishing off the repair.

Can I Bondo over rust?

To Bondo or Not to Bondo

Minor surface rust can often be sanded and painted, but major rust pitting and holes may require a little more effort and material — specifically, Bondo or some other quality body filler. However, Bondo shouldn't be used on every kind of rust hole.

Is Bondo good for cars?

Unfortunately, a dent repair filler like Bondo is not ultimately the best choice you have to fix car dents. Fillers like Bondo can potentially harm your car in the long run.

What is the difference between red blue and white cream hardener for body filler?

Body filler and hardener come in different colors (Fig 15) such as red, blue and white. In the past, the only difference between these colors was the color. Now some manufacturers offer hardeners in three different hardening speeds for cold, medium and hot weather.

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.

What is the difference between Bondo stage 2 and 3?

Stage 2 – Fill. This stage involves patching holes with reinforced filler and smoothing and shaping filler before painting. Stage 3 – Paint. This stage includes painting the area and blending and smoothing primer and paint.

Can I use body filler without hardener?

For Bondo to work, however, it must be used with a hardener. On its own, Bondo won't get hard. This means that it will not cure and eventually fall off after application. Because of that reason, Bondo must be used with a hardener.

What is the best surface to mix Bondo on?

1. Mix on a Spreader Mixing Board designed for the job. Do not mix on cardboard, cardboard will absorb the important resins from the body filler and hardener. Lay down your filler and then apply the correct amount of hardener.

Can I tint body filler?

Bondo is polyester and it can be tinted. There are color dispersions specifically made to tint it. Use the white hardener with these dispersions and you can get many different shades.

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