How thick can you apply Bondo?
How thick can you apply Bondo?
1/4”
There is no minimum thickness for Bondo, but there is absolutely a maximum. You do not want to apply body filler to anything that is thicker than about a 1/4”. That does not mean it can’t be done, but the repair will not last as long. Eventually the filler will shrink and possibly crack, or even pop off!
What is the best surface to mix Bondo on?
Proper Mixing Techniques for Body Filler (Bondo)
- Mix on a Spreader Mixing Board designed for the job. Do not mix on cardboard, cardboard will absorb the important resins from the body filler and hardener.
- Place the proper amount of Bondo filler and hardener: 50:1.
- Mix with a plastic or metal Filler Spreader.
Does Bondo come with hardener?
(Bondo comes with a tube of hardener.) If you add too much hardener, the mixture will gel too quickly. If you add 1 line of hardener across the top of the dollop of Bondo, it takes about 15 minutes to dry after applying.
How long should Bondo cure before sanding?
Allow the putty to dry 15 minutes at 77 degrees F (25 degrees C). In cooler climates, putty may take 20-30 minutes to dry. 7. Using 3M™ Sandpaper 80 grit, sand and shape the filled area to the contour of the surface.
What grit sandpaper do I use for bondo?
Use 60 to 80 grit paper to sand down below rust, deeper scars or to sand down and begin to shape body filler, such as bondo. These are very coarse grits and should only be used in specific areas where you really need it since it will leave sanding marks.
Will bondo harden without enough hardener?
Without it the bondo won’t get hard. Put a small piece of bondo on a board and run a line of hardener from end to end. It will take about five minutes to mix it up and apply it. If it starts tacking up, stop applying it or you’ll mess it up.
What does Bondo do?
brand name for automotive body filler. Bondo putty is an automotive body filler and a brand name used by 3M for a line of American-made products for automotive, marine and household repairs.
Does Bondo body filler work on plastic?
Like most plastic body fillers, Bondo is a lightweight polyester-based plastic body filler that was originally developed as an alternative to lead body solder. The Bondo brand name was created in 1955, just a few years after the use of lead body solder began to be prohibited.
How does Bondo work?
Bondo Body Filler is used quite often in auto body work. It is a body filler that fills in dents or creases. It is used to sculpt curved areas and areas where welding has taken place, to level the surface flush with the adjoining surface.
What is Bondo putty?
Bondo putty is an automotive body filler and a brand name used by 3M for a line of American-made products for automotive, marine and household repairs.
