Then, can you use a palm sander to sand a car?
The only time i would touch a palm sander to a vehicle is for rough shaping the bondo body filler. Once you get somewhat close switch over to hand shapping the bondo.
Also, does Bondo need to be primed?
Bondo over time absorbs water causing rust to form underneath. It can also shrink over time causing paint to bubble or peel off. If used………..the metal must be primed first.
How can I make my body filler dry faster?
You can put Bondo in the oven to harden it, for example. So anything that makes it hotter, such as hair dryers, sunshine or heat guns, will speed it up. Conversely, it will slow down if it’s cold out, windy, or anything that cools the heat.
How do I make my body filler straight?
How do you fix a bad Bondo job?
Grind all the paint and bondo off that area and see if it’s a pop riveted patch, or bubbling rust, or who knows what. Then a proper fix will require removing ALL of the rust and buggers, and welding in a solid repair. Then properly hammering it to shape, and a skim coat of filler, then paint.
How do you sand Bondo fast?
How long does bondo need to dry 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.
How long does it take for Bondo to fully cure?
Bondo mixed to the color swatch will begin to cure in less than 10 minutes at room temperature. Too much hardener in a warm environment will reduce working time, but too little in a cool environment can result in maddeningly long curing times. A heat lamp can speed curing in colder weather. 4.
Is bondo dust bad for you?
Applying Body Filler / Bondo
As the filler dries, styrene is released to the air and you can breathe it. … Exposure to styrene can cause respiratory irritation. It may also damage your liver and possibly cause cancer at very high levels of exposures – not usually found in autobody shops.
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.
What do I use to sand Bondo?
Once the Bondo cures, it’s time to sand. Power sanders are OK to break the surface and knock down any high spots, but hand sanding with the body contour is the best way forward. Cut in with heavier grit sandpaper and work out to about 80 grit to leave a tooth for the following skim coats.
What is the best sandpaper for Bondo?
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).
Why is Bondo bad?
Unfortunately, filling compounds such as Bondo also present some drawbacks. Fillers like Bondo can crack if they are mixed too thickly, harming rather than improving the look of the car. Additionally, there’s a risk of discoloration and poor long-term wear when you use a dent repair filler like Bondo.