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Author Topic: DIY Painting Tips  (Read 413777 times)
DarkMonster620
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« Reply #375 on: December 08, 2009, 02:50:39 PM »
Quote from: ducpainter on December 08, 2009, 12:33:19 PM
Fiberglass is not the best choice for bonding to plastic. It doesn't really stick.

JB weld would be better, but the regular kind takes forever to set up. If you had the quick set JB weld it should work. Just scuff up the bonding area with coarse (36) grit paper.

DP,
any other name for JBweld?
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Carlos
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Quote from: ducatiz on March 27, 2014, 07:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
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DILLIGAF
« Reply #376 on: December 08, 2009, 02:59:46 PM »
Quote from: Darkmonster620   formerly M620D on December 08, 2009, 02:50:39 PM
DP,
any other name for JBweld?
It may be easier for you to tell me what you can get.

JB weld is an epoxy type material. Epoxies, in general, stick to most anything if the surface is prepped correctly.

You kind of need a quick set product so you can hold it in place. It would be tough to clamp without marring paint.
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DarkMonster620
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« Reply #377 on: December 08, 2009, 03:21:44 PM »
Quote from: ducpainter on December 08, 2009, 02:59:46 PM
It may be easier for you to tell me what you can get.
>>> I'll do my homework

Quote
JB weld is an epoxy type material. Epoxies, in general, stick to most anything if the surface is prepped correctly.
Like two component epoxy?

Quote
You kind of need a quick set product so you can hold it in place. It would be tough to clamp without marring paint.
Fender all scratched from fall, will have to redo grills, fell on floor on shop and stepped on them...No worries, lots of used air filters to get mesh from at the shop...
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Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 07:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."
ducpainter
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« Reply #378 on: December 08, 2009, 03:23:13 PM »
Quote from: Darkmonster620   formerly M620D on December 08, 2009, 03:21:44 PM
>>> I'll do my homework
 Like two component epoxy?
 Fender all scratched from fall, will have to redo grills, fell on floor on shop and stepped on them...No worries, lots of used air filters to get mesh from at the shop...
All epoxies are 2K Wink
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
DarkMonster620
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« Reply #379 on: December 08, 2009, 03:32:46 PM »
Quote from: ducpainter on December 08, 2009, 03:23:13 PM
All epoxies are 2K Wink

  Embarrassed Embarrassed Embarrassed
Basically any of those that says that bonds metall to plastic will do?
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Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 07:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."
ducpainter
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DILLIGAF
« Reply #380 on: December 08, 2009, 03:34:20 PM »
Quote from: Darkmonster620   formerly M620D on December 08, 2009, 03:32:46 PM
 Embarrassed Embarrassed Embarrassed
Basically any of those that says that bonds metall to plastic will do?
Yup...

but look for a quick set product if you can.
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
DarkMonster620
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« Reply #381 on: December 08, 2009, 03:39:49 PM »
Quote from: ducpainter on December 08, 2009, 03:34:20 PM
Yup...

but look for a quick set product if you can.

I'll do...But, back to cutting and painting the grills. I sanded the fender with 340 grit to smooth it out, with what can I fill the scratches[the larger ones]?
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Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 07:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."
ducpainter
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DILLIGAF
« Reply #382 on: December 08, 2009, 03:50:52 PM »
Quote from: Darkmonster620   formerly M620D on December 08, 2009, 03:39:49 PM
I'll do...But, back to cutting and painting the grills. I sanded the fender with 340 grit to smooth it out, with what can I fill the scratches[the larger ones]?
There's a few ways...depends on how deep the scratches are.

I usually prep/smooth with 180 grit and prime.

You can try a primer surfacer, and then sand and paint. It depends also of the makeup of the product. Some fill better than others.

If you can feel the scratches with a fingernail use a polyester putty and then prime and sand. Try not to apply the putty over bare plastic.

Remember the fender is plastic and you should use an adhesion promoter intended for plastics before priming over bare plastic.
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
DarkMonster620
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« Reply #383 on: December 08, 2009, 03:54:36 PM »
Quote from: ducpainter on December 08, 2009, 03:50:52 PM
There's a few ways...depends on how deep the scratches are.

I usually prep/smooth with 180 grit and prime.

You can try a primer surfacer, and then sand and paint. It depends also of the makeup of the product. Some fill better than others.

If you can feel the scratches with a fingernail use a polyester putty and then prime and sand. Try not to apply the putty over bare plastic.

Remember the fender is plastic and you should use an adhesion promoter intended for plastics before priming over bare plastic.

OK, thanks, the "largest" scratch is about 1mm deep...
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Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 07:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."
ducpainter
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DILLIGAF
« Reply #384 on: December 08, 2009, 03:57:55 PM »
Quote from: Darkmonster620   formerly M620D on December 08, 2009, 03:54:36 PM
OK, thanks, the "largest" scratch is about 1mm deep...
That will need filling with putty.
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
DarkMonster620
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« Reply #385 on: December 16, 2009, 03:28:21 AM »
Quote from: ducpainter on December 08, 2009, 03:50:52 PM

Remember the fender is plastic and you should use an adhesion promoter intended for plastics before priming over bare plastic.

dp,

from these brands, basf, akzo nobel,dupont, lanco, from which one can i get the adhesion promoter?

Clearcoat wise, I'll be using a BASF made brand, it'll be flat cleared.

What about this,


I tried to fix it the best I could before the polyester putty, did I actually messed up or Huh?
« Last Edit: December 16, 2009, 11:59:09 AM by Darkmonster620 formerly M620D » Logged
Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 07:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."
ducpainter
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Posts: 78863


DILLIGAF
« Reply #386 on: December 16, 2009, 01:22:50 PM »
Quote from: Darkmonster620   formerly M620D on December 16, 2009, 03:28:21 AM
dp,

from these brands, basf, akzo nobel,dupont, lanco, from which one can i get the adhesion promoter?

Clearcoat wise, I'll be using a BASF made brand, it'll be flat cleared.

What about this,


I tried to fix it the best I could before the polyester putty, did I actually messed up or Huh?
They probably all have one
Logged
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
bdfinally
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« Reply #387 on: January 01, 2010, 08:34:38 AM »
Happy New Year, Nate chug

I've got a carbon fiber SBK front fender that I want to do something with. The thing has fogged up in parts of it and I'd like to see what you think, is it the clear coat and can be fixed or do I just need to paint the whole thing. here are some pics to help give you an idea of what I'm dealing with.

 




Thanks for your effort in this DIY project, it's much appreciated
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ducpainter
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DILLIGAF
« Reply #388 on: January 01, 2010, 08:57:53 AM »
It probably has not been cleared.

Try washing with denatured alcohol. If the fogginess goes away clear it with an automotive urethane.

Otherwise you'll need to paint it.
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"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”
DarkMonster620
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« Reply #389 on: January 01, 2010, 09:35:14 AM »
Hey Nate,

Happy New Year...

Been doing a lot of sanding, how far I need to go on the headlight bezel?
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Carlos
I said I was smart, never that I had my shit together
Quote from: ducatiz on March 27, 2014, 07:34:34 AM
Ducati is the pretty girl that can't walk in heels without stumbling. I still love her.
"When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth."
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