Post by
Eikon »
https://forums.nicoclub.com/eikon-u15727.html
Fri Jun 13, 2008 11:23 am
Well the past month has been very slow going, and very non-photogenic work.
I've been learning body work. I have a friend helping me who went to school for this stuff, so he is incredibly helpful. I can only assume he knows what he's doing since I surely don't. So far, it seems like we're making good progress and doing things the right way.
Here's the process for anyone who is interested in what I've learned... If not, just skip to the pictures, or further down the thread.
First off, the fenders I got with my silvia conversion were in really rough shape. So it took a lot of time with a hammer and dolly to get them as close to straight as possible. I actually resorted to just using my hands to bend and message a lot of it. I wish I had real tools for this stuff (like and english wheel), but I wouldn't know how to use those things anyhow.
One good tip I learned was that if you are going to be off a bit with the shape, you're better off being too low than you are too high. The reason is that you can use bondo to build it up.. but you can't do anything to make it lower.. So while you're hammering and shaping.. beware of high spots.
Before spreading Bondo, you should sand the panel down to bare metal or at least primer level. If you are too lazy for that, at least use some 120 grit sandpaper and scuff the finish up as much as possible so that the bondo has something to adhere to.
So we used a regular Bondo brand body filler for the big areas - the ones with deep dents and major problems.
Make sure you use a perfectly flat spreader to spread the bondo. I made the mistake a few times of not cleaning the blade very well. So the old crusty bondo leaves grooves in the new spread bondo. That makes it really hard to sand off properly because you have those deep grooves. Not a good thing!
Here's a picture of the bad fender with all the bondo on it. I had to apply two to three different times and sand it off again to get it right. It's still probably pretty dicey. But it's hard to tell at this point. So we're going to primer it up and then take another look at it to see if it needs more attention.
So we used the Bondo that is gray for the big areas.
For smaller dents (very shallow little ones), we used a different type of filler. It's a glaze for small issues. Basically what I did was wash the surface so that it was clean and shines. Then I took some 80 grit sandpaper and rubbed it in a X pattern across any areas that look like dents. Of course whenever using sandpaper I always use a sanding block so that it's a perfectly flat surface (see little red blocks in the previous picture). Anyhow after running a flat sandpaper across the surface you can see the depressions better because they will not have the scratches across them. If it's on a big area, sand it off completely down to metal so that the bondo will stick to it. If it's a small area, I think it's ok to scuff it up really good with sandpaper.
After sanding I apply the glaze bondo. I make sure to keep it as flat as possible, with a clean blade, and cover an area larger than just the depression. This bottle says it takes 25 minutes to dry, but I've found that it's at least twice that time.
After it's dry, I sand it off nice and smooth with 400 grit paper. The thing I don't like about this stuff is that it's hard to use your hands to feel if it's flat or not. With regular bondo, it feels just like dusty metal on your hands. You really can't tell if your on metal or bondo.. it all feels consistent, so you can really use your hands to tell if it feels flat or not. With this glaze however, it has a different texture, so it catches your fingers a bit. So it's hard to tell if it's really flat or not.
So I got a really cheap primer from the store and shot it on the top of the red sanded glaze.
So this is how the car stands now... Lots of funny spots of primer. The white primer is the bad spots that were deeper. The gray is the smaller dings that I used the glaze over.
The red dust is the sanding from the glaze.
Thanks for staying tuned thus far!
Here's the next steps (as I understand them).
#1.. let the primer dry and then feel the surface to see if it's flat or not. If not, apply more glaze and sand and repeat. This could take another week or two depending on my free time.
#2.. Rig up a do-it-yourself spray booth. We're going to screw in some hooks into the ceiling, then get some plastic or tarps from harbor frieght and tie them to strings and then hang them from the garage ceiling. The idea is to restrict a space around the car that will stay cleaner and hopefully the air will be less dusty than the rest of the garage. It won't be professional, but hopefully better than nothing.
#3.. Clean the hell out of the garage. To prevent crap in the air from getting into the "spray booth" and onto the fresh paint, it's wise to remove as much as possible from the rest of the garage. That means emptying and cleaning the garage. That will take a full day I'm afriad.
edit* #3A i guess.. I forgot to mention TAPING it up. You've got to tape it really good. Not like when painting a wall in the house. We're not using a brush, so it'll be airborne, and overspreay can go anywhere.. interior, windsheild, etc...
#4.. Start painting. Primer first! We'll load up the spray gun and put on a coat of primer. Then get a good look at the car and decide if it's ready to paint a base coat, or if it needs more bondo, sanding, etc..
#5.. Wet sand the whole car. Again check to see if there are any areas that need attention before applying paint.
#6.. base coat. Black is beautiful. I can't remember if we wetsand the base or not?
#7.. clear coat #1. let it dry.
#8.. clear coat #2. let it dry.
#9.. wet sand the hell out of it with super fine (like 1200 or higher grit) paper.
#10.. clear coat #3. let it dry.
might be done then.. we'll see. I might do another one or two clears depending on how much I have left and how nice it's turning out.
It's a long way from done.. but getting there.