Can body filler be applied over primer?

Can you apply body filler or bondo over primer filler? Yes. You CAN apply over sanded 2k primer, or bare metal. Be sure to have the area sanded with at least a 150 so the filler has some TOOTH to grab to.

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. OPTIONAL: Scuff Epoxy with P120-P180 grit sand paper or red scuff pad. 2 Mix and apply body filler over epoxy.

Likewise, can you put body filler on Baremetal? 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.

Likewise, can body filler be applied over paint?

Fillers and putties will normally work OK over properly sanded (80-180 grit) cured OEM paint. However, with so many different types of aftermarket paint available (lacquer, enamel, urethane, water-based). We recommend that all paint be removed where filler is to be applied.”

Should you prime before body filler?

We use 36 grit grinding disks to clean and texture the metal before applying filler. You can even use something as fine as 80 grit, just be sure to push the filler into the scratches so that it bonds well. No priming or etching is needed as long as the metal is textured and not rusted.

How long can you leave epoxy primer?

epoxy can sit just about forever but if it sets more than a couple days you should sand it and spray a coat of reduced epoxy as a sealer. most epoxies these days have around a 7 day recoat window but the more you wait the worse the adhesion is. i always like to get something on it within 24-48 hours.

Do you primer before Bondo?

Bondo should NEVER be on top of anything but 32-grit prepped bare metal, if you want it to stick and last. You can, however, use glazing putty on top of primer sanded with 80-grit. Hope this helps!

How do you fill pinholes in fiberglass?

88GT is right, get some liquid type polyester putty and spread a thin coat over the surface then sand it off. If you make it a very thin coat by pressing on your spreader it will still fill the pin holes and block sand easily. THEN apply 2K primer, guide coat and block sand the surface before painting.

What causes pinholes in body filler?

Pinholes are caused by air entrapment within the plastic body filler and are exposed during the sanding operation of the filler by the body man.

Can you put body filler over rust converter?

Using a rust converter ,acid under the epoxy primer that I’m using is a no go. The primer I’m using is Southern Polyurethanes. And they suggest apply the body filler over the primer.

Do you have to sand epoxy primer?

You should not need to sand the epoxy. But if you do, I use 220 grit to knock off the nibs. Check the tech sheets for dry time, really depends on temp and how long it’s been applied.

What is the difference between primer surfacer and primer sealer?

The most important distinction you need to understand is that a primer surfacer is intended to be sanded while a primer sealer is not. Surfacers are designed with fillers and pigments that make them easier to sand and powder when cured. The fillers also tend to do a better job of leveling imperfections.

Will epoxy stick to Bondo?

Yes, epoxy will stick to Bondo.

How big of a dent can you fill with Bondo?

Its OK to use bondo up to 1/4 inch. If it is your pride and joy, I’d do a little more work to reduce the dent. Using Metal-2-metal will make it a little stronger than normal bondo.

How long should Bondo dry before painting?

10 minutes

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.

Is Bondo waterproof?

Bondo Fiberglass Resin is designed for repairing cars, boats, snowmobiles, jet skis, bathtubs and showers. Bondo Fiberglass Resin is waterproof and is compatible with all paints, including gel coat and marine paints.