Sanding bondo is like trying to break through the berlin wall with a feather

"aberson Bresident of the FullyAssed Committe" (emaxxbl) 08/17/2016 at 13:44 • Filed to: None

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The only reason I’m using bondo is because it’s what I have.

I hate it.

WiscoProud > aberson Bresident of the FullyAssed Committe 08/17/2016 at 13:47

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If you’re just roughing it out at this point, feel free to use a heavier grit. Use a finer grit to prepare for a paint ready surface or for a skim coat.

Jake - Has Bad Luck So You Don't Have To > aberson Bresident of the FullyAssed Committe 08/17/2016 at 13:53

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What grit are you using?

Twingo Tamer - About to descend into project car hell. > aberson Bresident of the FullyAssed Committe 08/17/2016 at 13:53

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I use a file to get the worst off then varying grades of sandpaper to finish. If like me you always apply far too much the file makes much quicker work of it, just be careful you don't take too much off.

Nibby > aberson Bresident of the FullyAssed Committe 08/17/2016 at 13:54

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use your tongue

aberson Bresident of the FullyAssed Committe > Jake - Has Bad Luck So You Don't Have To 08/17/2016 at 14:00

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80

RamblinRover Luxury-Yacht > aberson Bresident of the FullyAssed Committe 08/17/2016 at 14:00

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Time to fire up the torch and get a stick of lead...

Alternately, less silly possibility, get a power bondo file (linear sander). They go for like $80.

aberson Bresident of the FullyAssed Committe > Nibby 08/17/2016 at 14:02

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crowmolly > aberson Bresident of the FullyAssed Committe 08/17/2016 at 14:03

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Might want to start with 36-40 and move to 80 later.

aberson Bresident of the FullyAssed Committe > RamblinRover Luxury-Yacht 08/17/2016 at 14:04

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I wouldn’t mind learning how to do lead. Just without all the lead-iness

RamblinRover Luxury-Yacht > aberson Bresident of the FullyAssed Committe 08/17/2016 at 14:10

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Incidentally - point of trivia - large portions of the Berlin wall are silly hard. Not much sand, lots of cement, very solid. Other egresses out of East Germany were somewhat hit and miss, but they wanted that thing to last.

Rust and Dust - Oppositelock Forever > Jake - Has Bad Luck So You Don't Have To 08/17/2016 at 14:23

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What Crowmolly said, essentially. Start at a 40 grit, work up to 80, finish the filler with 180, then move on to icing for final shaping. And god bless you if you’re doing it by hand. DA/pneumatic file board for cutting that stuff, the icing should cut fairly well by hand.

Also, how thick is the filler application?

(I totally replied to the wrong person, hopefully Aperson sees this ; ; )

415s30 W123TSXWaggoIIIIIIo ( •_•))°) > aberson Bresident of the FullyAssed Committe 08/17/2016 at 14:28

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We use it on stuff for shows, repairing things they want to use for next year if it’s an annual thing. We used orbital sanders mostly, never put more on than you have to!

415s30 W123TSXWaggoIIIIIIo ( •_•))°) > RamblinRover Luxury-Yacht 08/17/2016 at 14:30

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I just changed my W123 windshield yesterday, the original says Made in West Germany, I am sad I don’t have West German glass anymore.... The new one is super clear though...

Daily Drives a Dragon - One Last Lap > aberson Bresident of the FullyAssed Committe 08/17/2016 at 14:34

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Nibby works out a lot. Don’t worry.

LOREM IPSUM > aberson Bresident of the FullyAssed Committe 08/17/2016 at 14:46

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File the excess off first, then sand smooth.

Daily Drives a Dragon - One Last Lap > Nibby 08/17/2016 at 15:11

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EWWWWWWWW. Gross.

Die-Trying > aberson Bresident of the FullyAssed Committe 08/17/2016 at 16:10

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what are you sanding it WITH?????......?????.......... i usually cheat, and get the coarsest wood file that i own like this one except old.......(coarse cut carving file)

usually i dont need it......... the trick, is to get the metal REAL close to where it needs to be, and when you lay on the bondo......... you use the biggest paddle you can find, and you press it on REAL hard, so its real thin........ if you do things right you only need a real light sanding......... i usually end up using the large file, and another smaller, before i lay on a BUNCH of coats of high build primer to hide all my cheating........ i take the time THERE, blocking out the primer.........

like Rover said lead is best........

Frank Grimes > aberson Bresident of the FullyAssed Committe 08/17/2016 at 19:28

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i find body filler super easy to sand. did you add too much hardener or something?

crowmolly > Frank Grimes 08/17/2016 at 22:52

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Depends on the brand, I think some are easier sanded than others.