- What is the difference between epoxy primer and urethane primer?
- Do you primer before Bondo?
- Should you primer before body filler?
- Can you put body filler over bare metal?
- Can you paint over epoxy primer without sanding?
- When can I paint over epoxy primer?
- Can you put body filler on top of epoxy primer?
- How good is epoxy primer?
- Will high build primer fill pinholes?
- Can you leave body filler exposed?
- Can you apply body filler over primer?
- Is epoxy primer waterproof?
- Do you have to prime over etch primer?
- How long can you leave epoxy primer?
- Is epoxy primer safe to spray?
- What happens if you leave primer unpainted?
- Can you paint over body filler?
What is the difference between epoxy primer and urethane primer?
Since urethane is only a primer surfacer, you’ll also need to apply a sealer before you paint.
Again, a coat of epoxy primer over the top will serve the purpose.
Some restorers believe filler primer is little more than liquid body filler.
In most cases, the filler primer or high-build primer is also a urethane product..
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!
Should you primer 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 you put body filler over bare metal?
Can Evercoat fillers be applied over bare metal? … 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 paint over epoxy primer without sanding?
You can apply more product or your next material (paint) over that primer without having to sand. Not sure how tight of a time crunch you’re in, but you can extend a project out almost a week if you time everything right without sanding. Epoxy prime one day, 2K filler prime the next.
When can I paint over epoxy primer?
Quote: The tech sheets for most Epoxy Primers recommend sanding and recoating with more Epoxy Primer after 7 days. Scuff it and shoot some 2K over it.
Can you put body filler on top of epoxy 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.
How good is epoxy primer?
Sealing up bare metal. An epoxy primer is very effective at sealing up bare metal and prevents moisture or corrosion from creeping in. It keeps out oxygen, ensuring that rust or corrosion do not form on the surface. It is non-porous when it cures and does not soak up moisture like most primer sealers.
Will high build primer fill pinholes?
Any high-quality automotive primer will cover and hide the scratches. Pinholes are not so easy to fix. Pinholes are the tiny voids, bubbles, and pits caused by air that got mixed into the dry micro. … Unfortunately, primer is very thick and does a horrible job of filling pinholes.
Can you leave body filler exposed?
Registered. Don’t leave the body filler exposed if you’re driving the car. As you stated, shoot on some epoxy and apply the filler. After you’ve sanded, wipe it down and shoot some epoxy atop the body filler.
Can you apply body filler 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.
Is epoxy primer waterproof?
Epoxy has several distinct advantages over standard primers. … Because it’s waterproof, its excellent corrosion resistant properties make it the only base primer to use, especially if you reside in a damp climate.
Do you have to prime over etch primer?
You can now apply the Etch Primer to the substrate, only the thinnest coat is required and a second coat is not necessary. Etch Primers only start to work after they start to dry. … More paint finishes are ruined by the application of paint over Etch Primer that is still drying than almost anything else.
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.
Is epoxy primer safe to spray?
When an epoxy primer is sprayed and is airborne it should be treated with the same respect as a 2 pack paint. Required Protection: If you’re spraying (or near someone spraying) epoxy primer then you need full respiratory protection.
What happens if you leave primer unpainted?
Since primer’s function is mainly to bond and cover porous surfaces, it is not made to withstand elements like paint. Because of this, if you leave primer without a top coat (or paint) it will deteriorate and break down, probably in a chalk like form.
Can you paint over body filler?
Thread: painting over body filler They need to be primered with a fill primer (not epoxy). If you don’t prime the filler then the filler will absorb the paint, which will end up looking like a bullseye in the paint after you’re done.