Table of Contents
Can you put 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.
How do you fill a rust hole in metal?
You can use a hard piece of cardboard, a kit applicator, or a putty knife. Make sure that you apply epoxy until the entire hole is filled or repaired. Epoxy will form over the metal surface and the edges of the hole will overlap a bit. Allow the epoxy to harden.
Do you have to remove all rust before Bondo?
You cannot slather some Bondo over rust and expect it to stop the rust or stick to it for that matter. For rust repairs, you must first remove any scale from the metal. 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.
Can you use body filler over rust Reformer?
Last edited by 65 tbird; 07-23-2013 at 11:47 PM. You don’t want to put filler over rust that hasn’t been stabilized because it can cause the filler to release from the surface.
Is there a filler for metal?
Permatex Liquid Metal Filler is an easy-to-use filler that can be drilled, filed, sanded and painted. It forms a long-lasting, metal-tough bond and works on metal, wood, and concrete.
What is the best treatment for rust?
Corroseal is widely regarded as the best rust converter paint and metal primer available today. Corroseal is easy to apply with a one-step process of using a paintbrush or a roller. Though it doesn’t come in a spray bottle, if you have your own, it is thin enough to use as a spray.
Can you use Bondo to fill a hole?
Put Bondo in a container and add hardener to it. Don’t add too much hardener because it will dry out fast and harden too quickly before you can use it all. Take your putty knife and work the Bondo together to remove any air pockets. Place your Bondo into the hole and try to create a flat surface on the top.
Does Bondo shrink?
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.
What’s the best Bondo to use?
The Best Car Body Fillers 3M Bondo 261 Lightweight Car Body Filler. Permatex 25909 Liquid Metal Filler. Evercoat 156 Lightweight Car Body Filler.
How do you fill small holes in metal without welding?
Epoxy or Tape Epoxy and tape are two common no-weld hole repair options. These do-it-yourself approaches are effective when repairing a small hole rather than a significant tear. Specialty epoxy and tape products are designed to patch steel and metal.
What grit sandpaper do I use for Bondo?
First step: Prep the Surface 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 long does Bondo take to dry without hardener?
That said, having an idea of how long bondo takes to dry is important whenever you’re planning out a project or repair. 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.
Should you prime before body filler?
Do not proceed to Primer Filler stage until filled area is even. Adding body filler AFTER primer filler should be avoided to prevent possible adhesion, staining and shrinkage concerns.
Can you fiberglass over rust converter?
Primer Application You want to clean off any dirt before you apply a coat of primer because this will act as your basecoat for the fiberglass, so it needs to be smooth and paintable! This should take care of any remaining rust and give your fiberglass something to stick to!Aug 16, 2021.
Can rust Reformer be used on bare metal?
Rust Converter is intended for heavier rust. If applied over bare metal, it will not cure properly and can actually cause light flash rust. If you have an area that you sanded off rust completely, Rust Encapsulator is the product to use in a situation where you have bare metal.
Can you put body filler over por15?
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.
Is Bondo good for metal?
Bondo Metal Reinforced Filler is easy to use, yet exceptionally strong for repairing and rebuilding metal, fiberglass and more. Compatible with metal, fiberglass, masonry and wood for auto and home. Provides a metallic appearance that won’t rust. Includes tube of hardener and directions for use.
Can you use Bondo on steel?
Doors made of wood or metal can benefit from Bondo’s filling ability. The putty comes in two parts that have to be mixed together and applied to the surface. A portion of Bondo is spread out over a hard glass or metal surface and hardener is mixed in.
