Best Tools for Sanding and Finishing Bondo

[aron42486]

What types of tools is everyone using for sanding and detailing bondo? I am currently using a handheld oscillating sander for my bulk sanding with many different grits. I use my corded dremel 4000 w/ snake attachment for detail work.

Anyone willing to share what dremel bits they use for detailing bondo and resin? And also sharing what situations situations they use those bits for?

View attachment 59663
The bit i use the most is the Chainsaw Sharpening bit. It is designed for grinding metal so it holds up well to resin and bondo. The length of the bit allows me to keep a relatively flat surface and the flat tip works well in corners.

View attachment 59661
For tiny details I've been using this Tapered Tile Cutting bit. I cant remember if it is diamond grit or tungsten carbide but it is very strong. It is the narrowest bit that I have found for carving thin lines. Easy part is cutting but the hard part is cutting straight. I still wish I could find something narrower.

View attachment 59662
To completely cut through a piece or to carve straight lines I use the good ol wheel grinder. Not good at cutting curved lines but will handle those straight-a-ways.

Anyone got any other bits that are good for certain tricks?

 

[Rotaerc]

I currently do all mine by hand or with a dremmel. But its getting tiresome, I'm afraid an orbital sander will take off too much too fast.

 

[NormanF]

I used a lathe with sheets of sandpaper, sandpaper on a sanding block, and finally a sanding sponge. But I'm basically building a football shape.

 

[exoray]

I never use a Dremel for detail work, heck I hardly use one at all... Jewelers files, regular files, sand paper an dental picks for most detail work...

You can rough shape and even shave smooth Bondo quite easily during it's kicking stage before it gets hard with a sharp flat edge like a thin putty knife...

For quick knockdown a surform rasp makes quick work and even traditional rasp make pretty quick work...

 

[terryr]

The best way to take it off is not to put it on....too thick.

The biggest flaw is to lay it on like you're icing a cake. Because then you have to get most of it back off.
You should put on just enough to cover the bumps on the cake. Then put on more if needed. It's easier, quicker, and cheaper.

 

[Finhead]

You all realize the original post is almost a year old?