Painted with POR-15 and need shine in Engine Bay
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Painted with POR-15 and need shine in Engine Bay
Okay, I got the engine bay sandblasted on Thursday. Today (Friday) I prepped the engine bay with metal-ready and then painted the engine bay with POR-15. It looks great!! As it dried, it is not as shiny and not as smooth to the touch as I would like it. I understand that it will not be perfectly smooth as the body, but I would like somewhat smoothness. I plan on leaving POR-15 (Semi-Gloss Black) as the final finish. What can I do to get a shine and or smoothness? Would I need to sand it? Buff it? Or just leave it, because it is an engine bay. I have attached a picture. It looks shiny because I took it just after painting it..
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Car: 92 Z28
Engine: Boosted LSX
I did my complete engine bay in POR15 also...
I thined it and shoot it outa a gravity feed hvlp gun. Only ****ty thing when I was done I had to leave so I closed the garage door and dust went everywhere.
got in the finish befor it way dry... So now it looks like a speckly finish. Oh well I plan to prime and paint it when I paint the car anyways..
http://www.cecoatings.com/images/92Z/POR15/
I thined it and shoot it outa a gravity feed hvlp gun. Only ****ty thing when I was done I had to leave so I closed the garage door and dust went everywhere.
got in the finish befor it way dry... So now it looks like a speckly finish. Oh well I plan to prime and paint it when I paint the car anyways..
http://www.cecoatings.com/images/92Z/POR15/
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Car: '87 IROC
Engine: L98
Transmission: TH700R4
Would this stuff work well on the K-member and A-frames as well?
Even if you could not get them blasted first?
I hate having those rusted pieces under my car.
tj
Even if you could not get them blasted first?
I hate having those rusted pieces under my car.
tj
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I have seen where others have posted pictures of their cross member and A-Frames painted with POR15. I don't recall if they got them sandblasted first, though.
TPI383 - it looks like you have some windshield damage..
TPI383 - it looks like you have some windshield damage..
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Car: 92 Z28
Engine: Boosted LSX
I didnt por 15 my k-member cuz Im powdercoating another setup I have.. and droping that in.
Yes I need a new windshield. but good hting its broke so I can paint the car while its out.
I have the complete int. out. EVERYTHING but the dash. It got POR15ed and Im having a 8point cage put in.
Yes I need a new windshield. but good hting its broke so I can paint the car while its out.
I have the complete int. out. EVERYTHING but the dash. It got POR15ed and Im having a 8point cage put in.
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Car: 1987 Trans Am
Engine: Lt1
Transmission: T56
You could have gone over it as it was drying with a chassis black gloss or semi-gloss spray can. That would have been probably what you are lokking for. I did it this way once and it came out great.
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It's been 24 hours now, is it too late to spray it with gloss black can spray? I wouldn't be able to do anything until tomorrow afternoon at this point. If not, that's okay, it doesn't look bad at all..
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Car: 1989 Firebird Formula
Engine: Internal Combustion
Transmission: Completed
Axle/Gears: ones that turn.
A little bit late; they recommend topcoating within 3 to 5 hours of applying the paint.
I did the inner fenders of the Formula with gloss black, and the top half (so far) of the crossmember with semi-gloss chassis black.
Pete
I did the inner fenders of the Formula with gloss black, and the top half (so far) of the crossmember with semi-gloss chassis black.
Pete
#12
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Originally posted by ZFORCE
Would this stuff work well on the K-member and A-frames as well?
Even if you could not get them blasted first?
I hate having those rusted pieces under my car.
tj
Would this stuff work well on the K-member and A-frames as well?
Even if you could not get them blasted first?
I hate having those rusted pieces under my car.
tj
You can certainly apply por-15 over paint, but you're wasting your time. In order to get the benefits of the rust prevention, you need to apply it to bare metal.
If that means sandblasting it, so be it, you could also sand it down, grind it, use a chemical remover, but in all these cases, make sure you have a clean bare metal surface when you're done.
The por-15 web site alludes to a way to use bondo to give a smooth finish over your rusty pitted chassis, but I don't remember exactly what step it's used in. I believe you have to apply it just as por-15 starts to set. It's nice that por-15 stops rust, but the rusted piece you just painted can have surface distortions from the rust if you didn't bead blast it down smooth. Bondo can fill in small parts, while your metal will still not rust.
Mathius
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Petes 84Z28 - I noticed that you have A/C delete. That must be nice..
Mathius - You are correct with everything you said. I was lucky enough to have friends that own a sandblaster. They brought the whole engine bay down to metal...They also hit the inside of the wheel wells (where the rubber undercoding was gone.) I sprayed the POR15 on, so I could get all the tough spots...
Thank you for all the advice everyone. The people on this board are great!
Time to decide on what header to go with!!
Scott
Mathius - You are correct with everything you said. I was lucky enough to have friends that own a sandblaster. They brought the whole engine bay down to metal...They also hit the inside of the wheel wells (where the rubber undercoding was gone.) I sprayed the POR15 on, so I could get all the tough spots...
Thank you for all the advice everyone. The people on this board are great!
Time to decide on what header to go with!!
Scott
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Car: 92 Z28
Engine: Boosted LSX
Originally posted by Mathius
You can certainly apply por-15 over paint, but you're wasting your time. In order to get the benefits of the rust prevention, you need to apply it to bare metal.
If that means sandblasting it, so be it, you could also sand it down, grind it, use a chemical remover, but in all these cases, make sure you have a clean bare metal surface when you're done.
You can certainly apply por-15 over paint, but you're wasting your time. In order to get the benefits of the rust prevention, you need to apply it to bare metal.
If that means sandblasting it, so be it, you could also sand it down, grind it, use a chemical remover, but in all these cases, make sure you have a clean bare metal surface when you're done.
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Car: 1999 Saturn SL2
Engine: 4 cylinder
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Por-15 will not prevent rust unless A. You apply it to bare metal (rusted counts as bare metal, obviously, but it can't be a painted surface) and B. you make sure all sides of the metal are coated. This meaning, it's great that you guys did your engine bay, but if you didn't do the inside of the firewall, or the bottom side of the inner fender wells, then you could rust from the inside out.
Also, why should you use MetalReady before applying POR-15?
#16
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I'm not 100% sure you even NEED Metal Ready. I'm thinking it's just an extra product by the Por-15 people to make money.
Metal Ready is a prep product used to make the bare metal surface ready for Por-15 to be applied, but I'm fairly certain it's probably just a cleaning agent, i.e. mineral spirits or such. To be on the safe side and do things "by the book", Metal Ready is recommended. You can check the Por-15 Web site (http://www.por-15.com) and they have a FAQ that answers most of your questions.
As for how it works with rust, it prevents future rust, and converts exhisting rust to a paintable surface. It doesn't remove rust. Actually what is happening, is it's creating a hard shell over your metal and rust. Here's the punchline. Por-15 is moisture activated, so if moisture attacks your car it won't make rust. If it does anything to your exhisting por-15 surface, it would just make it stronger.
The big downside to Por-15 is it IS UV sensative, which is why they recommend it for engine bay's and undercoating, however, there is a way to paint over por-15 and of course they have their own products for that too So you could essentially do your whole car, like TPI383 has done.
This is my goal down the road. I have emissions tests to worry about here where I live. I want to snag an '82 sometime in the next couple of years, and by 2007 it'll be 25 yrs old and emissions exempt! I can por-15 the whole chassis inside and out, and essentially the car could last forever, no more rust!
Another downside is due to the way it hardens, por-15 is very difficult to remove.
Mathius
Metal Ready is a prep product used to make the bare metal surface ready for Por-15 to be applied, but I'm fairly certain it's probably just a cleaning agent, i.e. mineral spirits or such. To be on the safe side and do things "by the book", Metal Ready is recommended. You can check the Por-15 Web site (http://www.por-15.com) and they have a FAQ that answers most of your questions.
As for how it works with rust, it prevents future rust, and converts exhisting rust to a paintable surface. It doesn't remove rust. Actually what is happening, is it's creating a hard shell over your metal and rust. Here's the punchline. Por-15 is moisture activated, so if moisture attacks your car it won't make rust. If it does anything to your exhisting por-15 surface, it would just make it stronger.
The big downside to Por-15 is it IS UV sensative, which is why they recommend it for engine bay's and undercoating, however, there is a way to paint over por-15 and of course they have their own products for that too So you could essentially do your whole car, like TPI383 has done.
This is my goal down the road. I have emissions tests to worry about here where I live. I want to snag an '82 sometime in the next couple of years, and by 2007 it'll be 25 yrs old and emissions exempt! I can por-15 the whole chassis inside and out, and essentially the car could last forever, no more rust!
Another downside is due to the way it hardens, por-15 is very difficult to remove.
Mathius
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Car: 1999 Saturn SL2
Engine: 4 cylinder
Transmission: 4-speed automatic
So just to make sure I have all this straight:
POR-15 does not remove rust, only prevents it
Metal-Ready is not essential to apply prior to applying POR-15
If I was to apply POR-15 to the outside of my car, it would weaken due to sunlight UV radiation
I still have more questions and I checked the FAQ a couple of times, but it doesn't answer everything I want to know.
It says POR-15 comes in different colors, but I thought it was supposed to be a rust preventitive, not paint? What's the deal?
What would happen to the surface of a rusty peice of metal if I applied POR-15 to it?
Is it recommended that I sand all of the rust off the metal before applying POR-15 or can I just apply it directly to the rusty metal?
Sorry for sounding like such a newbie I just don't understand a lot of this stuff.
POR-15 does not remove rust, only prevents it
Metal-Ready is not essential to apply prior to applying POR-15
If I was to apply POR-15 to the outside of my car, it would weaken due to sunlight UV radiation
I still have more questions and I checked the FAQ a couple of times, but it doesn't answer everything I want to know.
It says POR-15 comes in different colors, but I thought it was supposed to be a rust preventitive, not paint? What's the deal?
What would happen to the surface of a rusty peice of metal if I applied POR-15 to it?
Is it recommended that I sand all of the rust off the metal before applying POR-15 or can I just apply it directly to the rusty metal?
Sorry for sounding like such a newbie I just don't understand a lot of this stuff.
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They say that you can apply it to exterior surfaces, but it loses its finish quality. The protection properties are not effected by sunlight. Sounds just like GM paint, it covers metal and protects it from the elements, it just looks like ****. I used it on my battery tray and on my subframes and on both it looks like the day I did it, 1.5 years ago.
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Car: 1999 Saturn SL2
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Ohhhh, so what you're saying is that it may be able to add a nice finish to your metal while protecting it from rust, but the finish dulls if exposed to sunlight (not the protective properties, though)?
That's what I got out of that.
That's what I got out of that.
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I decided to use it only in my engine bay based on the fact that the UV rays dull the finish. Since the compartment will be exposed to the sun very little it is not a problem. I’m glad to hear that the battery tray looks the same as the day you painted it! That part of my car had the most rust. Although, the sandblasting took all the rust away, I wanted to prevent it from coming back.
I don’t think I would recommend using POR15 on the exterior of the car. It only comes in these basic colors; Black, Clear, Gray, Semi-Gloss Black and Silver. Not to mention the UV aspect.
As I think about it, I did use the semi-gloss and that is what I got. By all means, it looks great and I feel that, from what I have read from others, it will last!!
I have a little left over just incase I discover any rust on the interior of the car (floor boards, trunk or behind the dash) not that I expect any. I have attached a picture that is the same as the one above before the POR-15.
I don’t think I would recommend using POR15 on the exterior of the car. It only comes in these basic colors; Black, Clear, Gray, Semi-Gloss Black and Silver. Not to mention the UV aspect.
As I think about it, I did use the semi-gloss and that is what I got. By all means, it looks great and I feel that, from what I have read from others, it will last!!
I have a little left over just incase I discover any rust on the interior of the car (floor boards, trunk or behind the dash) not that I expect any. I have attached a picture that is the same as the one above before the POR-15.
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Car: 94 Corvette
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Originally posted by Nate86
Ohhhh, so what you're saying is that it may be able to add a nice finish to your metal while protecting it from rust, but the finish dulls if exposed to sunlight (not the protective properties, though)?
That's what I got out of that.
Ohhhh, so what you're saying is that it may be able to add a nice finish to your metal while protecting it from rust, but the finish dulls if exposed to sunlight (not the protective properties, though)?
That's what I got out of that.
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Car: 1989 Firebird Formula
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Originally posted by War_Eagle
Back to the original question, you sound like you want a more gloss finish? Dosen't Por-15 comes in a nice gloss black?.....
Back to the original question, you sound like you want a more gloss finish? Dosen't Por-15 comes in a nice gloss black?.....
If you're interested, they will send you a free catalog by filling out a form on their site.
Some of the literature enclosed with the catalog states:
"POR-15 is UV sensitive. The chemical that gives paint it's ultra-violet protection causes a slight weakness in paint and it is for this reason it is not present in POR-15. If the painted surface is in direct exposure to the sun it must be topcoated to retain it's finish. You may use any type or solvent base of paint or fillers, except a clear to acheive this. The usual result of an unprotested finish exposed to the sun is a complete loss of color with no return of oxidation. Ask your POR-15 distributor or dealer for information on our extensive line of incredibly tough, UV protected finish coatings."
They also offer a body filler designed to work over POR-15, as well as a sandable primer which can be applied if you desire to paint over a cured surface.
Another downside is due to the way it hardens, por-15 is very difficult to remove.
What would happen to the surface of a rusty peice of metal if I applied POR-15 to it? Is it recommended that I sand all of the rust off the metal before applying POR-15 or can I just apply it directly to the rusty metal?
#26
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Originally posted by Nate86
So just to make sure I have all this straight:
POR-15 does not remove rust, only prevents it
So just to make sure I have all this straight:
POR-15 does not remove rust, only prevents it
Metal-Ready is not essential to apply prior to applying POR-15
If I was to apply POR-15 to the outside of my car, it would weaken due to sunlight UV radiation
I still have more questions and I checked the FAQ a couple of times, but it doesn't answer everything I want to know.
It says POR-15 comes in different colors, but I thought it was supposed to be a rust preventitive, not paint? What's the deal?
What would happen to the surface of a rusty peice of metal if I applied POR-15 to it?
Is it recommended that I sand all of the rust off the metal before applying POR-15 or can I just apply it directly to the rusty metal?
Mathius
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Thanks, Mathius! :hail:
That's exactly what I wanted to know. Sorry if I sound like a newbie ('cause basically I am hehe), but I just wanted to get all the facts before I started believing a product would do something that it does not.
Thanks again.
That's exactly what I wanted to know. Sorry if I sound like a newbie ('cause basically I am hehe), but I just wanted to get all the facts before I started believing a product would do something that it does not.
Thanks again.
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