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.
Can you put Bondo over rust Reformer?
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 you put Bondo over epoxy?
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.
Will metal rust under body filler?
After many years of media blasting tons of stuff, and seeing tons of Bondo, I can confidently state that body filler on bare metal WILL allow rust to build up UNDER the said filler. So, after you blast your stuff, or get it blasted, get it in Epoxy primer, THEN do the bodywork.
Can Bondo be applied over primer?
You can apply Bondo over primer, as long you sand the primer first. This ensures the Bondo sticks well. You should also sand the Bondo afterward to have a smooth finish. However, you must apply the Bondo once the primer has been cured.
28 related questions foundShould I prime before body filler?
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.
Can I apply body filler over paint?
Can they be applied over paint? A. Evercoat fillers are designed to work over bare, properly prepared substrates such as: steel, aluminum, galvanized metal, fiberglass, and SMC. Fillers and putties will normally work OK over properly sanded (80-180 grit) cured OEM paint.
What primer goes over body filler?
If spraying two coats, the product must dry overnight before applying over body filler. Wet sanding epoxy primer is usually the best way to prep it because epoxy has a tendency to clog paper when sanded dry. Polyester primer is a very thick two-part product and is used when there's a good deal of bodywork.
Does bondo prevent rust?
It Won't Magically Fix Rust
If there are holes in the metal, you are much better off cutting it all out, patching it with new metal, and then working the body filler from there. Any rust left under the filler will continue to grow, so don't be surprised if a small repair turns into a bigger problem down the road.
Can you put polyester filler over epoxy?
Fresh epoxy can be letting off chemicals - like the amine bloom that can cause problems for even epoxy to stick to new but fully-cured epoxy. 2. Scrape off as much as possible, mix up new polyester filler with _fresh_ hardener and apply - the new catalyst in the new filler will help the older filler cure.
Can you use body filler over por 15?
CAN I USE BODY FILLER OR PUTTY WITH POR-15? Yes. First paint both sides of the rusted area with POR-15; then use body filler or putty as soon as the POR-15 is dry to the touch.
What comes first primer or Bondo?
One school of thought suggests bare metal, then Bondo. The other says primer, then Bondo. Avoid endless forum threads and consult the manufacturer for the definitive answer. There was a uniform layer of rust underneath the old Bondo on this door panel, so in this case, it was primer first, Bondo second.
Can you put body filler over rust?
The mere application of body filler over a substrate won't stop rust, Miller said. Fillers might contain corrosion resistance and slow the process, “but they're not gonna stop it,” he said. Put filler on rust, and “(the rust) may continue to grow,” he said.
What happens if you put Bondo over rust?
However, Bondo shouldn't be used on every kind of rust hole. Because it can't support any weight or protect you in a crash, you should never attempt to use Bondo for rust holes in anything structural, such as frame rails or reinforced areas on unibody vehicles (i.e. most modern cars and crossovers).
Can you put filler on top of rust converter?
How should you apply body filler before or after applying rust encapsulator? Rust Encapsulator can be applied over or under body filler. Rust Encapsulator should be applied first if there is still rust.
Does body filler last long?
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.
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 permanent?
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.
Does body filler go on bare metal or primer?
The short answer is filler companies suggest it needs to go on bare metal, and epoxy companies suggest you put filler over epoxy so they can sell more of their product.
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.”
Can you put putty over paint?
Spot repairs and other small repairs to auto body panels can be done with this spot and glaze putty. You can use it to fill pinholes in body filler as well as to cover minor scratches on metal, fiberglass, and wood, as well as to paint and prepare sanded, primed, or sanded and painted surfaces.
Why does bondo show through paint?
Yeah, that's totally normal. It's just that the patches of bondo soak up the primer differently than the metal but epoxy is the way to go. Just let it dry and give the entire truck a light sand with 400 grit and apply a couple more coats of epoxy.
Can you put body filler over sanded paint?
Can they be applied over paint? A. Evercoat fillers are designed to work over bare, properly prepared substrates such as: steel, aluminum, galvanized metal, fiberglass, and SMC. Fillers and putties will normally work OK over properly sanded (80-180 grit) cured OEM paint.
Can you use body filler on a frame?
Once coated, a thin layer of body filler just to fill in the pits will be fine on a frame.
