![Reply](http://www.njfboa.org/forums/images/buttons/reply.gif) |
06-04-2012, 11:22 PM
|
#1
|
Stalker
Join Date: Aug 2004
Posts: 12,077
|
Questions about fixing paint...
I have an aftermarket fiberglass hood that was painted some time ago, I do not know exactly when. The issue is that the clear coat is peeling/flaking off. And the problem is just on the hood apparently. The rest of the car, which seems to have been painted at the same time, is fine.
I want to fix the paint without sending the hood out for a complete strip down and full respray. The base color is in good shape and it is a custom color which would be almost impossible to match.
What steps should i take to remove the old clear coat?
Do I just sand the clear down around the spots?
Should I try to peel up as much as possible, then scuff up the whole hood and then re-clear it?
Should I sand down the clear completely on areas that it wont peel off?
I'm just afraid of going too deep and sanding through the base coat.
and ultimately, my biggest question is WHY did the paint lift? improper flash times? wrong mix? cheap paint?
Last edited by V; 06-18-2012 at 11:38 AM.
|
|
|
06-05-2012, 06:47 AM
|
#2
|
12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
|
looks like a familiar hood !
and ive always wondered the same thing about when just the clear flakes off
__________________
86 Camaro
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
07 Sublime Charger Daytona
10 Tahoe SSV
12 Tahoe LT
17 Malibu LT
|
|
|
06-05-2012, 11:23 AM
|
#3
|
Join Date: Aug 2011
Location: Eastampton, NJ
Posts: 156
|
I'm having the same problem with the clear coat on my hood. There was only major spot though, the rest is peeling a little along the edge. The person who took care of it for me sanded down the clear coat around the spot then repainted it... it doesn't look perfect but it's much better than it was. I can post pictures later if you want.
__________________
99 Trans Am WS6 A4 - SLP lid, JBA shorty headers, Flowmaster catback, 3.42 gears, SD tuned, UMI LCA's.
|
|
|
06-05-2012, 11:33 AM
|
#4
|
Join Date: Dec 2004
Location: Galloway, NJ
Posts: 3,964
|
Quote:
Originally Posted by V
ultimately, my biggest question is WHY did the paint lift? improper flash times? wrong mix? cheap paint?
|
It's possible that all 4 reasons are the culprit, especially if it was a done at home job. Another problem is that if the hood is fiberglass, and a flex agent wasn't mixed, that can lead to premature clear coat failing since the fiberglass flexes, and stretches more then metal. Same thing when you see poly bumpers with flaking clear coat. The rest of the car may look good, but if its an aftermarket paint job, a flex agent wasn't added, or didn't hadve the correct amount added.
As to go about properly removing the clear, I'm not sure how to do it without losing some paint, but removing as much delaminated clear as you can is a good start, however the old clear may make a step with the new clear, so much sanding and buffing to blend may be needed after curing. Id talk to my co worker who's on this site that went to school for painting (94camaroz28)
__________________
1996 Camaro C/S - 2/3 Corvette Engine
Quote:
Originally Posted by BigAls87Z28
Uh yeah, after they surprized buttsecks us at Pearl Harbor?
|
|
|
|
06-05-2012, 01:25 PM
|
#5
|
Stalker
Join Date: Aug 2004
Posts: 12,077
|
I'm also afraid that if I sand the trouble spots down and re-clear, that maybe in a few weeks or months, the flat areas of clear that are good now may flake and open up. But if that would happen... would the new clear coat, with proper flex agent, contain it enough?
Back on the topic of flex-agent, since the rest of the car is peel-free, I doubt that is the issue. I would assume the front urethane bumper and the rubbermaid-like fenders would have flexed way more than the hood previously. And I don't believe any of the job was an "at-home" paint job. All jambs and everything were done properly and finish quality is very good. Was it a possibility that something in the gel-coat affected the clear?
If it comes down to needing a full hood respray, (primer, base, clear) then I will just go ahead and get a whole new hood and have a shop do it so they can worry about matching it as best as possible.
Last edited by V; 06-05-2012 at 01:41 PM.
|
|
|
06-05-2012, 09:45 PM
|
#6
|
Join Date: Dec 2004
Location: Galloway, NJ
Posts: 3,964
|
It would if the paint was coming up as well. Gel coat can have a wax agent mixed in it (The tooling gel I'm working with right now doesn't so it stays tacky for days, and squeaks for weeks until sanded.) The clear coat alone wouldn't be coming up, you would have fish scales, fish eyes, and other stuff if that was the case.
Just may be the fact that it sat in the sun for a while. I had my right hand side view mirror repainted at work because the sun made the clear coat peel after a couple years. No other parts of the car had that, just there because of the way the sun hit it where I parked it.
__________________
1996 Camaro C/S - 2/3 Corvette Engine
Quote:
Originally Posted by BigAls87Z28
Uh yeah, after they surprized buttsecks us at Pearl Harbor?
|
|
|
|
06-06-2012, 07:08 AM
|
#7
|
13 sec club
Join Date: Oct 2011
Location: Mays Landing, NJ
Posts: 245
|
just from my experience, and jeff will tell you. once u sand the basecoat(if it is metallic) there is no going back. the metallics and micas no longer stand up like they should. all the clear should be feathered out, or if ur afraid of it peeling in the future, take all the clear off and repaint. i know thats prob not what you wanted to hear but metallics are impossible to work with once the clear is gone
__________________
1994 Z28...SOLD
1994 Honda Civic LX 1.5L.....not to be riced
|
|
|
06-06-2012, 07:35 AM
|
#8
|
Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
|
coulda been a bad mixture for the paint/clearcoat, or just cheap clear coat
__________________
Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
|
|
|
06-06-2012, 08:31 AM
|
#9
|
Join Date: Oct 2009
Location: West Milford
Posts: 1,026
|
You are going to have to re-shoot the hood...no way to sand off the clear while leaving the basecoat and as w/doing away w/runs or whatnot, common principle is 'if you didn't shoot it initially fixing an unknown from an unknown painter most likely will not work'. Many reasons why the clear lifted...fiberglass is a different material, more heat intolerant and should be prep w/certain primers (common issue on hood of vettes if not done correctly). ..materials used...paint not taken care of (not waxed, etc)...that is why a lot of high areas always have this issue (esp in chrysler black back in the 90's)...high areas w/the most exposure to the sun always have this issue...hood/roof/top of quarters/fenders/windshield surrounds, fiberglass spoilers etc....couple that w/the hood getting heated from both angles, top and bottom is a reason to see why this would occur. I know most if not all fiberglass hoods do not use an underhood pad, but using this buffer could help after its painted again (dynomatt, etc).
|
|
|
06-06-2012, 06:23 PM
|
#10
|
Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
|
Quote:
Originally Posted by 1320B4U
(esp in chrysler black back in the 90's)
|
Yup....driver's side of the hood of my old '96 (taken in '07 when it was just starting).
- Justin
__________________
1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
|
|
|
06-06-2012, 08:20 PM
|
#11
|
Join Date: Oct 2009
Location: West Milford
Posts: 1,026
|
^ Had a '95 cherokee (box)..had to repaint the top of the rear hatch (fiberglass) and wiper cowl as well...in black...lol.
|
|
|
06-18-2012, 11:39 AM
|
#12
|
Stalker
Join Date: Aug 2004
Posts: 12,077
|
I said screw it and bought another hood, I'll just repaint the other one and sell this one.
|
|
|
06-18-2012, 03:02 PM
|
#13
|
Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
|
Quote:
Originally Posted by V
I said screw it and bought another hood, I'll just repaint the other one and sell this one.
|
hmmm... that may be nice hood to pick up on my part to for the street
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
Last edited by LS1ow; 06-18-2012 at 03:02 PM.
|
|
|
06-19-2012, 04:54 PM
|
#14
|
Stalker
Join Date: Aug 2004
Posts: 12,077
|
hehe
The red one is from Suncoast Creations, and goes for $695 new. Its a bit heavier and thicker than the one I took off and also has nicer black mesh type grills on it.
Last edited by V; 06-19-2012 at 04:56 PM.
|
|
|
06-19-2012, 04:57 PM
|
#15
|
Stalker
Join Date: Aug 2004
Posts: 12,077
|
Quote:
Originally Posted by LS1ow
hmmm... that may be nice hood to pick up on my part to for the street
|
let me know, i'm gonna post it up for sale this week
|
|
|
07-09-2012, 07:20 PM
|
#16
|
Stalker
Join Date: Aug 2004
Posts: 12,077
|
not bolted on yet.
|
|
|
07-09-2012, 08:11 PM
|
#17
|
Join Date: Mar 2011
Location: Morris County
Posts: 1,033
|
http://suncoastcreations.com/mm5/mer...nshot_offset=5
Paul, Does the underside of your hood look like this? I'm trying to figure out what brand the one you sold me is.From the top, its almost exactly the Suncoast Creations Predator but the underside rib pattern and cutouts are different.
__________________
94 Trans am 25th anniversary
86 Buick Regal T-type
73 camaro 454/T56 work in progress.
|
|
|
07-09-2012, 09:09 PM
|
#18
|
Stalker
Join Date: Aug 2004
Posts: 12,077
|
Quote:
Originally Posted by grazi
http://suncoastcreations.com/mm5/mer...nshot_offset=5
Paul, Does the underside of your hood look like this? I'm trying to figure out what brand the one you sold me is.From the top, its almost exactly the Suncoast Creations Predator but the underside rib pattern and cutouts are different.
|
yes, the hood I have is a Suncoast hood, that other one I had no idea.
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|
|