Does Bondo need to be painted? Do not slap Bondo onto a smooth painted surface, it is not going to stick very well. The paint should be sanded off, to the bare metal, and then apply the filler.
about 2-3 weeks
Beside this, How long can Bondo be left unpainted?
about 2-3 weeks
Likewise, 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. … This filler remains easy to sand for days after the application.
Also, What happens if body filler gets wet?
If you got some bondo wet and then dried it out, you could grind it down and it wouldn’t have any moisture inside, but the metal behind it may have already been oxidized and then you’ll have problems.
Can you leave Bondo unpainted?
Between life and work, the longest time period the bondo would go Unpainted would be about 2-3 weeks.
16 Related Question Answers Found
Is it OK for Bondo to get wet?
You can wet sand plastic body filler (“Bondo” is a trade name like “Chevrolet” or “Nike”) but you should carefully heat the filler with a blow torch before priming. Just take a blow torch and quickly wave it across the filler and you will see the moisture evaporating right before your eyes.
Does Bondo absorb water?
Registered. Well, the all metal fillers (under your bondo) don’t absorb water to the extent that regular bodyfiller will, but believe they still do absorb some. Plastic filler absorbs it like a sponge, but keeping some heat on it should eventually evaporate the water from the plastic filler.
How do I prepare 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 body filler take to dry?
If your filler hardens too fast, you used too much, if it takes too long, you didn’t use enough. You only want to mix what you can use in about 10 minutes. Properly mixed, body filler will begin to thicken in 10-15 minutes, and be fully cured in 30.
How long does Bondo have to dry before painting?
If your filler hardens too fast, you used too much, if it takes too long, you didn’t use enough. You only want to mix what you can use in about 10 minutes. Properly mixed, body filler will begin to thicken in 10-15 minutes, and be fully cured in 30.
How long can you leave Bondo unpainted?
about 2-3 weeks
Do you have to put Bondo on bare metal?
What you are working with needs to be properly prepped BEFORE you apply any body filler. Do not slap Bondo onto a smooth painted surface, it is not going to stick very well. The paint should be sanded off, to the bare metal, and then apply the filler. A 36-grit to 180-grit surface is ideal for body filler application.
Can you get body filler wet?
Don’t wet sand filler. Filler is too absorbant and you can have problems getting it dry plus you could cause moisture to wick through to the metal or weaken the bond between the filler and the substrate.
Does body filler absorb water?
Another point to note is that the talc in body filler is hygroscopic, meaning it readily absorbs water. Don’t leave a vehicle in damp conditions with exposed body filler. Moisture could get absorbed and give you big problems later in the repair. Body filler is exothermic, meaning it creates its own heat when curing.
How long before you can paint Bondo?
Bondo Fiberglass Resin is sandable in less than 2 hours, is compatible with all paints, and creates a strong and long-lasting bond.
Can I wet sand Bondo?
You can wet sand plastic body filler (“Bondo” is a trade name like “Chevrolet” or “Nike”) but you should carefully heat the filler with a blow torch before priming. Just take a blow torch and quickly wave it across the filler and you will see the moisture evaporating right before your eyes.
Is Bondo water resistant?
Bondo Fiberglass Resins and Repair Kits are 100 percent waterproof. Because they do not shrink, they are excellent sealers. Bondo Fiberglass Resin is sandable in less than 2 hours, is compatible with all paints, and creates a strong and long-lasting bond.
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