![]() |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
![]() ![]() |
![]() |
scotty b |
![]()
Post
#101
|
rust free you say ? ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None ![]() |
These cracks keeps pooping every now and then I must have patched 5 of them already. now one popped up as I am ready to paint. what can cause that and what can I do? I hate to tell you this but that looks like rust under that crack. Am I wrong? More times than not, people do not do the proper prep work when applying fiberglass panels to steel bodies. I have seen more than my fair share of glass parts pop riveted to bare metal and mudded to shape. Bad form. It will come back to haunt them. Done properly glass panels can l;ast a long time without issue, done improperly, they last about 2 -3 years |
914itis |
![]()
Post
#102
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
These cracks keeps pooping every now and then I must have patched 5 of them already. now one popped up as I am ready to paint. what can cause that and what can I do? I hate to tell you this but that looks like rust under that crack. Am I wrong? More times than not, people do not do the proper prep work when applying fiberglass panels to steel bodies. I have seen more than my fair share of glass parts pop riveted to bare metal and mudded to shape. Bad form. It will come back to haunt them. Done properly glass panels can l;ast a long time without issue, done improperly, they last about 2 -3 years No, I just sanded it down and there is no sign of rust. it was just a thin glass applied over the metal to even it out. |
914itis |
![]()
Post
#103
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
oh well its all panted.ni will have pics tomorow. It wasn't too bad with the exception of a couples drips. I hope that wet sand can take them out. How long do I have to wait to wet sand? I am assumng 2000 grit would do it .
|
barada |
![]()
Post
#104
|
Member ![]() ![]() Group: Members Posts: 257 Joined: 5-October 08 From: Atlanta Member No.: 9,613 Region Association: None ![]() |
oh well its all panted.ni will have pics tomorow. It wasn't too bad with the exception of a couples drips. I hope that wet sand can take them out. How long do I have to wait to wet sand? I am assumng 2000 grit would do it . Get it out in the sun. I would say at least a week, longer is better of course. |
scotty b |
![]()
Post
#105
|
rust free you say ? ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None ![]() |
oh well its all panted.ni will have pics tomorow. It wasn't too bad with the exception of a couples drips. I hope that wet sand can take them out. How long do I have to wait to wet sand? I am assumng 2000 grit would do it . 24-48 hours. Start with 1500. go to 2000 then buff |
914itis |
![]()
Post
#106
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
The driver's side door is the one that had most of the drips, I mean bad. I hope wet sand and buffing will do it. The first picture shows the bad door. The bugs also did a number on me, but mustly on the last coat. I gave a total of 5 coats.
Attached image(s) ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
914itis |
![]()
Post
#107
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
Scotty, Andy, What kind of buffer solution do you advise.
Scotty, you mean I can buff it right after the wet sand,( 24-48 hrs) or do I wait a few days. |
Andyrew |
![]()
Post
#108
|
Spooling.... Please wait ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California ![]() ![]() |
Scotty/ Paul,
The paint takes longer to harden than other paint. Mine was still very soft after a week. The drips I mean. Those drips are very thick, you have a couple of options, but using 1500 grit IMHO will take forever to take it out. I used 600 grit very carefully on the drip only. Only because I had more runs than you did. Start with 1k grit, then 1500, then 2k. Buy this from harbor freight. http://www.harborfreight.com/7-inch-variab...nder-92623.html They typically have this on sale for 30. Keep your receipt. Return it when your done and buy another one on sale when it goes on sale because this really is a good buffer. http://www.harborfreight.com/5-piece-7-inc...-set-94323.html Buy this for the backing pad. http://www.harborfreight.com/9-inch-foam-b...-pad-91235.html This is for buffing. http://www.harborfreight.com/9-inch-black-...-pad-91236.html This is for polishing (not buffing) |
914itis |
![]()
Post
#109
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
Andy ,
You think next Friday ok for wet sand? Can I throw a plastic on the paint now as cover or Does the paint need to breath? |
Andyrew |
![]()
Post
#110
|
Spooling.... Please wait ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California ![]() ![]() |
BTW it looks great!!! Congrats!
Your booth looks pretty neat! |
Andyrew |
![]()
Post
#111
|
Spooling.... Please wait ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California ![]() ![]() |
Let the paint breathe.
Next friday might be early. However take your fingernail and press it into the paint and see if it makes a dent. If it does, its to early. It should be fairly hard. |
914itis |
![]()
Post
#112
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
Thanks. Couldn't do it that easy without you. Boot is a $99 car port from pepboy then I used platic to cover the sides.
|
scotty b |
![]()
Post
#113
|
rust free you say ? ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None ![]() |
I west sand and buff single stage within 24 hours. The longer it sits, the harder it gets, thus the harder it is to sand and buff. Yes you need to be careful, but 24 hours is plenty of time for the paint to setup. This one was done within 24 hours, and was cheap single stage, ( PPG shopline ) the equivalent of Nason.
Attached image(s) ![]() |
914itis |
![]()
Post
#114
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
The driver's side door is the one that had most of the drips, I mean bad. I hope wet sand and buffing will do it. The first picture shows the bad door. The bugs also did a number on me, but mustly on the last coat. I gave a total of 5 coats. Wow Paul that looks great I know what gift to get you (IMG:style_emoticons/default/shades.gif) Thanks Scott. I emailed you about the spoiler you had listed . You never replied. Will PM you my number now . |
914itis |
![]()
Post
#115
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
The driver's side door is the one that had most of the drips, I mean bad. I hope wet sand and buffing will do it. The first picture shows the bad door. The bugs also did a number on me, but mustly on the last coat. I gave a total of 5 coats. Wow Paul that looks great I know what gift to get you (IMG:style_emoticons/default/shades.gif) Thanks Scott. I emailed you about the spoiler you had listed . You never replied. Will PM you my number now . The spoiler is yours My gift (IMG:style_emoticons/default/first.gif) I'll need to drop it off in person and see your work Sure. Let me know when you are available. |
914itis |
![]()
Post
#116
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
I think I f$%*cked up, (IMG:style_emoticons/default/sheeplove.gif) the paint is completely dry. I decided to wet sand, and noticed that I have more drips than I assumed, and they are bad. picture # 2 shows what happened as i try to sand one down with 1500 grit. You are looking at the primer.
I also have a lot of those small spots all over the hood due to bugs shown on pic #1. What is my option? 1, do I sand all the drips and repaint? 2, do I need to prime again when sanded 3, is it safe now to sand over the fresh paint? any reactions wait time etc.. 4, as far as the dots on pic #1, will the compound take them out? experts weight in please.. |
Andyrew |
![]()
Post
#117
|
Spooling.... Please wait ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California ![]() ![]() |
No pics (IMG:style_emoticons/default/smile.gif)
|
914itis |
![]()
Post
#118
|
Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,892 Joined: 9-October 10 From: New York City Member No.: 12,256 Region Association: North East States ![]() |
Attached image(s) ![]() ![]() |
Andyrew |
![]()
Post
#119
|
Spooling.... Please wait ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California ![]() ![]() |
Try putting the sandpaper on a mixing stick and being careful to only touch the run. This is what I did, then I went over it with the block after I got it to the level of the rest of the paint and just hit it rally light.
Also realize that the paint above a run will be much thinner than paint on the run. Also to answer questions 1. Sand all the drips, repaint if your through. You can spot repaint the area, or repaint the whole pannel. You probably used 1/2 a gallon? You have plenty to respray those area's or even the whole car. 2. No you dont have to re-primer. 3. You should be fine as long as the paint is 100% hard. I would wait till friday or so, leaving the paint in the sun the whole week then wet sanding it down to say 320 (you can wet sand now that you have the metalwork sealed with a sealing primer). |
Andyrew |
![]()
Post
#120
|
Spooling.... Please wait ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California ![]() ![]() |
Oh and the bugs, you probably wont get all the bug out of the paint but you can get most of it. Thats just a downside of a DIY paint job. I have probably 3 bugs/legs/dots in my paint that are obvious to me, but to everyone else it just looks like a piece of dirt thats on the paint.
|
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 26th June 2024 - 07:48 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |