What will Bondo not stick to?

Clean and sand or scuff the surface to prepare it for body filler — it will not adhere to smooth, dirty or oily surfaces. Generally, if paint will stick, so will Bondo. 7. Conversely, if there's an area you don't want Bondo to stick to, apply a release agent (see tools and materials) or use Scotch tape or wax paper.

What keeps Bondo from sticking?

WD-40 is an excellent lubricant that prevents fillers from sticking…and makes it easy to remove once the Bondo or Wood Filler is dry!

Will Bondo stick to packing tape?

Active Hunter. Over time an use the bondo will not stick to Duct tape.

Does Bondo stick better to bare metal or primer?

bondo goes over bare steel only. Never over any kind of paint, primer, etc.

Can I use body filler on bare metal?

For small repairs, you can bog directly over the bare metal. If the repair is larger, or you're looking for a longer-lasting job, apply a base coat of epoxy primer before laying on the filler.

Bondo what you need to know

How do you prepare metal for Bondo?

Before applying, paint needs to be sanded to the bare metal. Make sure to sand outside of the repair area as Bondo will need to be spread and applied wider than the damaged area. (36-grit to 220-grit should do the trick for body filler application).

How many years will Bondo 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. If you want it to last that long, then you need to apply it correctly and thoroughly follow the manufacturer's instructions.

Can you Bondo over rust converter?

Rust converter converts the rust to primer. You can prime and paint over it. Clean the loose rust off first before converting of course tho. I re-read yes you can bondo over it.

Can I fiberglass over duct tape?

It Works over masking tape and fun foam , so duct tape is no prob , However you will not be able to sand through it ( it will get very gunky ) so you will have to build up serious layers .

Can you epoxy over duct tape?

Because Epoxy Resin does not stick to the tape, sheathing is the ideal material to use. Once you have made your product and the resin has fully cured, you can easily just remove the tape. Pros: It is a very cost-effective method and works extremely well.

How do you keep epoxy from sticking to mold?

We use plastic packaging tape as a mold release for repairing damaged wood trim. Another easy option for preventing adhesion to a working surface is plastic packaging tape. It works quite well when you want the epoxy to stick in one place and not another, like on temporary frames used for stripper canoe construction.

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.

Will Bondo stick to wood?

Bondo® Wood Filler is stainable and paintable and turns to a medium brown color when mixed, making it perfect for almost any wood surface.

Can Bondo be applied over primer?

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 professionals use Bondo?

Professional, high quality shops use body filler on custom cars and restorations continuously. Even as a DIY'er, using body filler on your every day vehicle or project car can be a fantastic option, so long as body filler is used correctly.

Is Bondo a permanent fix?

Bondo Body Filler cures fast, shapes in minutes and is formulated to be a non-shrinking and permanently durable material. In addition to its uses on vehicle exteriors and other metal surfaces it is also a suitable repair option for wood, fiberglass and concrete.

Is Bondo waterproof?

Bondo All-Purpose Fiberglass Resin is your go-to material for sealing cracks, repairing breaks or filling holes in fiberglass, wood, concrete or metal. Along with cloth tape or matting, this 100% waterproof resin can be used for hundreds of repair projects to include cars, trucks, pools, showers, boats and more.

How thick can you apply Bondo?

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. Eventually the filler will shrink and possibly crack, or even pop off!

Should you prime before filling?

A. We recommend priming before and after application of the filler. Priming will protect and aid with adhesion of the filler to the surface. Priming afterwards also ensures excellent adhesion of your paint top coat.

How long should Bondo dry before sanding?

When used according to the manufacturer's recommendations, Bondo takes 10 to 15 minutes to dry enough to form a sandable surface. After 45 minutes it's cured enough to be painted.

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.”