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427stingray

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Discussion starter · #1 ·
I have been block sanding my quarters like forever. One day soon maybe in this decade I will get them the way I want.

Seriously I put some skins on my 67 GTO that were decent at best and have been blocking them now for about 10 hours and they are actually coming out nice. A few spts need help but I shopuld be finished by....2015.

I have been using one of those foam pads you get at home depot and wrap my paper around it. I am using the 6 inch one. It seem to working fine. I am going to put another coat of high build and use the 18 inch long board next.
 
I have been block sanding my quarters like forever. One day soon maybe in this decade I will get them the way I want.

Seriously I put some skins on my 67 GTO that were decent at best and have been blocking them now for about 10 hours and they are actually coming out nice. A few spts need help but I shopuld be finished by....2015.

I have been using one of those foam pads you get at home depot and wrap my paper around it. I am using the 6 inch one. It seem to working fine. I am going to put another coat of high build and use the 18 inch long board next.
Taking the time will pay off in the end, but it sure is a lot of work.

Heres a little something, I know you probably don't need to use it, but it worked for me.

I did a frame off, took me ten years on a CJ-5 Jeep.

Anyway the hood on a jeep has a lot of different angles and radius's, and as it tapers down at the front, the radius changes. It worked so good on the hood I used it on other panels. I'm going out to the garage and get some measurements.
 
I can't find it, one of my two boys might have absconded it. Anyway I found a piece of the same stuff.

Its a smooth kind of rigid rubber, the strap I made was 2 3/4'' wide about three feet long. I made it so two 2 3/4'' X 17'' long sandpaper strips would fit on it, the size that goes on a file board.

I can't remember how I stuck the finer sandpaper on it, I might have used 3m feathering disc glue, it doesn't take much to get it to stay on.

The rubber is .098 thick, a little under an 1/8''.

I couldn't find the sticky backed sandpaper for the finer grades, but I used it on the courser grades. Anyway I cut the pieces and glued them to the rubber for the finer grades, then I cross hatched it down the side, at a 45% angle, and as I sanded I sould slide it a little at the same time. Like laying it over a 55 gallon drum, all I can say is you can see how it will true up a curved surface as you sand.

It takes a little monkeying around, but it will put a panel on the dead ready.

Probably more then you really wanted to hear:)

Rob
 
Hey I have a big pile of primer dust, can I sell it.
Box it up and send it to Andy, he could wet it down, make a little slurry and slap her on that wanna be Chevelle he has.:D
 
Discussion starter · #6 ·
The sanding block I was using was one of those blocks you use for drywall. It's like a hard sponge and will go around contours. I just wrap my paper around it and it seems to work good.

I got it all boxed up. 3 pounds of dust. Also left over hardened body filler. From when you mix to much. It's in various weird shapes.
 
The sanding block I was using was one of those blocks you use for drywall. It's like a hard sponge and will go around contours. I just wrap my paper around it and it seems to work good.

I got it all boxed up. 3 pounds of dust. Also left over hardened body filler. From when you mix to much. It's in various weird shapes.
Sounds good, send it to him c.o.d.:D
 
There is no substitute for time. I did bodywork on my 66 for 9 months and it still wasn't perfect for the black finish. The next time around is going to be cake because it's a whole lot closer and all the rust is already fixed.
 
I spent 5-6 weeks spraying slick sand and blocking my 65 to prep for black. I used the medium and long Durablocks. It ended up really straight, but I probably put a gallon of slicksand on the floor!
 
Box it up and send it to Andy, he could wet it down, make a little slurry and slap her on that wanna be Chevelle he has.:D
come on rub.......... keep up ... Andy needs a 6' length of 3"x 6" 1/4 thick angle iron for a rear bumper ;)

not even andy bondos bumpers !! ( I hope ) LOL
 
Discussion starter · #13 ·
It sounds like you might be trying to do too much with primer. You can save a lot of time by getting the panels flat with plastic filler before priming. Here's a pretty good article outlining the procedure, including using guide coats to tell you when to stop sanding:

Block Sanding

Tom
I did the whole quarters with a thin coat of plastic. But I still had some problem areas. These GTO quarters are not as nice as the Chevelle ones and need a lot of work. Sometimes I wish I had left the originals on.

Good article, thanks.
 
using to much primer can come back and bite you, I tried it on a 72 nova it's been about a year and there are spots you can see where the primer shrank the plastic filler is the way to go. On those novas everything is kind of a bubble a couple paint sticks worked good for me and a piece of double D shaft about 4.5" i think i used a gallon of bondo on the whole car when i re skinned the rear quarter but only needed about a 1/3 of that the rest went of the floor and my hair and clothes but it was fun:)
 
Discussion starter · #15 ·
I don't think I will have an issue with the primer, first off most of it goes on the floor and I won't be painting the car until next spring. Plenty of time for everything to shrink. Then when comes time to paint I will go over the whole car again and finish it up.
 
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