Por15 vs. Chassis Black [Archive] - Chevelle Tech

: Por15 vs. Chassis Black


ss396boy
Feb 18th, 02, 11:15 PM
Which is the best for applying to the frame.

Redrum
Feb 19th, 02, 12:37 AM
First, you need to strip the frame, then use the POR-15 metal prep and WASH it off as they instruct. They use a mini foam roller to apply the POR-15. There will be zillions of small bubbles at first but they roll out when the POR-15 starts to tack. Then coat with the chassis black using a small foam roller. Do not even think to try and use a brush as it will take at least ten times longer and will leave brush strokes showing. I have automotive paint equipment and an 30 gallon tank air-compressor and still highly recommend the foam rollers. I have done two frames with this stuff so I have a bit of experience with POR-15.

Now, the most important part.... DO NOT GET POR-15 ON YOUR SKIN IN ANY PLACE THAT WILL BE SEEN IN THE NEXT TWO OR THREE WEEKS. That stuff does not come off with anything but sandpaper when dry. Wear at least two layers of gloves, two pairs of pants, three shirts and don't let it drip on your face. I can tell you from 1st hand experience that you will take skin off if you ignore this or you will go to work looking mighty strange. I chose the skin removal look.

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Redrum (or Mike)
68 Corvette - 383 CI 427 HP
69 SS Chevelle being updated to Pro-Touring
97 Z-28

ss396boy
Feb 19th, 02, 1:06 AM
i have the good ol purple nitrile gloves, better than the crappy latex they give you.

FO_FDYFO
Feb 19th, 02, 8:25 AM
what is the advantage of using the chassis black? why not just por-15?

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1970 Chevelle 454 Wagons haul A$$ in style! "The Chopped Suburban". to see some goto
www.EINSTYN.com (http://www.EINSTYN.com) FO_FDYFO = four-fifty four! TC#1460, VCEA#2

JU87
Feb 19th, 02, 11:23 AM
Has anybody used the Eastwood Chassis resto kit? I've been shopping around and it seems like a better deal than POR15. The POR 15 runs $40 a !quart! around here, while the Eastwood kit has 1QT of Corroless (Their POR 15?), AND two spray cans of their chassis black paint for $39.00. Are Eastwood products any good? To use POR 15 AND their chassis black paint is almost a $100 for 2qts of paint- !! That is pretty damned expensive!

70el_66Ch
Feb 19th, 02, 6:47 PM
I bought the chassis black but I think it is to shinny. I did the frame in underhood black. It looks very nice. I don't have any pics up for you to view.
Also I sprayed it with a primmer gun.

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70 El Camino ET 11.32 @ 117MPH 70elcamino (http://chevelles.com/showroom/dans70elcamino.jpg)
66 Malibu project 66Chevelle as purchased (http://chevelles.com/showroom/dans66Chevelle.jpg)
66 Malibu project 66Chevelle part way done (http://chevelles.com/showroom/dans66Chevelle2.JPG)
71 C10 402BB

RandyJC
Feb 19th, 02, 9:10 PM
Not trying to plug the company, but just for info, go to WWW.por15.com (http://WWW.por15.com) and order their catalog. They have a few interesting products that looks useful in the restoration world. Looks like you can save a couple of bucks ordering it directly too.

Redrum
Feb 19th, 02, 10:50 PM
FO_FDYFO, The POR-15 is very shinny and does not look right. It also is UV (ultraviolet) sensitive.

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Redrum (or Mike)
68 Corvette - 383 CI 427 HP
69 SS Chevelle being updated to Pro-Touring
97 Z-28

GVMLS6
Feb 19th, 02, 11:25 PM
Powder coating is the best coating for frames because it get into all the nooks and crannys that you always seem to miss with spray or any other method of aplication. I know, it's expensive, but well worth the money. Other than that, the best way to get the original "look" is to spray with a good etch primer, then apply a Urethane primer/sealer, then a Urethane,single-stage, flattened black.

Wanna_Chev
Feb 19th, 02, 11:33 PM
I did the same as Redrum, but i did use a paintbrush and it turned out fine, no brush marks. Por-15 will leave brush marks, however, if you go over the spot with a brush when it's tacky. The Chassis Black went on after, looks really good.

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1970 Camaro Z28
396/auto/posi
My 70 Z28 (http://members.home.com/irocz/jeffzed2.jpg)

FO_FDYFO
Feb 20th, 02, 7:55 AM
i use por-15 products all the time and sware by them. redrum thanks i already know that http://www.chevelles.com/forum/wink.gif i wanted to know what is the advantage of putting the chassis black over the por-15? is it just to give it a duller look and keep the uv from doing its jod on the por-15? isnt there a problem with chassis black bonding to the por-15?
another words, why would i go through the trouble of putting it on? ................
and here we go again on the powder coating. my experience with powder coating is that it sucks and it has a limited use. it is great on new smooth metal, but it does not reach inside the frame chanels like you might think. por-15 does get into all the nooks and cranys. you can also use wands to get way up in the box frame sections. most frames had surface rust. perfect thing for por-15 to grab onto. you can beat it with a hammer it will not come off. i have chiped powder coating off. we are intitled to our opinions and i would do a million frames in por-15 befor doing one in powder coating. do your homework. powder coating is not worth a damn for sand blasted or dipped rusted frames. it may be fine for new frame?



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1970 Chevelle 454 Wagons haul A$$ in style! "The Chopped Suburban". to see some goto
www.EINSTYN.com (http://www.EINSTYN.com) FO_FDYFO = four-fifty four! TC#1460, VCEA#2

JU87
Feb 20th, 02, 11:49 AM
POR15 is THAT UV sensitive?! I have never used it but I can gather from FOFDYFO that it is a quality product. How can UV rays reach the frame when the hood is closed? How about under the frame? Is POR 15 really that sensitive to where a hood being open for awhile is going to cause discoloration?!

I'd pay $40 a Qt (which is still too expensive- I'm trying the Eastwood kit) for POR 15 before I'd pay for powdercoating, though. I am sure powdercoating is MUCH more expensive, plus I would Imagine its not as durable.

ss396boy
Feb 20th, 02, 12:20 PM
Has anyone tried using Por15 on their rearend?

12 bolt that is http://www.chevelles.com/forum/biggrin.gif

FO_FDYFO
Feb 20th, 02, 2:01 PM
i have experience with por-15's UV sensativiety. it gets a very slightly chalky surface after a few weeks of exposure. however it never looses its ability to keep oxygen from reaching the metal. it just looks funky. and under the hood or under the car i guess it would take a very long time for uv to take its toll. i have done rearends in por-15 looks and works great. for years and years. so whats the point of chassis black? i guess i'm not to get an answer. i just will assume the reason people would use it on top of por-15 is to get a more flat looking black color and prevent any possable dulling of the por-15. so it is strictly cosmetic, therefore not necessary.

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1970 Chevelle 454 Wagons haul A$$ in style! "The Chopped Suburban". to see some goto
www.EINSTYN.com (http://www.EINSTYN.com) FO_FDYFO = four-fifty four! TC#1460, VCEA#2

JU87
Feb 20th, 02, 3:30 PM
FO_FDYFO,

If you look on POR 15's site, they give "reasons" why one should buy the chassis black. I for one am not convinced enough from these reasons to spend ANOTHER $40 on ANOTHER ~~black~~ QUART of paint. I've been tossing around what to use, and it looks like the Eastwood kit w/corroless is a better deal. Thanks for giving experiences regarding the POR15 UV sensitivity- for $40 a quart, its just too expensive to risk the discoloration when the Eastwood kit is cheaper AND cosmetic, as the POR15 Chassis black is.

Redrum
Feb 20th, 02, 10:02 PM
Chassis Black is for cosmetic reasons only.
I have a powdercoated frame on my 68 corvette for show reasons. You don't need the expense for anything but show.

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Redrum (or Mike)
68 Corvette - 383 CI 427 HP
69 SS Chevelle being updated to Pro-Touring
97 Z-28

DanD
Feb 21st, 02, 8:10 AM
On the frame I use the POR15 applied with a brush (although a roller may be faster),then just as it gets tacky (before it too dry to leave a fingerprint in it), I spray on the POR15 Chassis Coat black. It turns out great. It is the correct gloss, and after about a week of curing, you can't hardly knock it off. I have accidentally banged frames several times during reassembly, and you couldn't even tell it.
I've used the POR15 gloss black on several rear end housings with very good results.

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ACES Member#603
Team Chevelle Gold Member #285
67 Malibu Convertible
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Ed Kish
Feb 21st, 02, 2:27 PM
I brushed on por 15 on the firewall of my 67 and it left brush marks on it both times. So I ended up out of por 15 and patience,so I striped it off a third time and used the eastwood under hood black.This time it came out great.I only wish i had heard about the roller trick first.por 15 is a great product and i will spend the 40 bucks to do the frame this spring.cant wait to get the body back on.

ss396boy
Feb 21st, 02, 2:41 PM
I guess I will use the roller technique on areas that are seen and then use a brush on the axle and hard to reach places. Thanks again guys, Team Chevelle ROCKS!

Redrum
Feb 21st, 02, 8:41 PM
The foam roller gets to most of the hard places as good or better than a brush. Keep a cheap throw away brush for any spots missed but I GUARANTEE the mini faom rollers are the best to use. Just throw all brushes and rollers away after use!

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Redrum (or Mike)
68 Corvette - 383 CI 427 HP
69 SS Chevelle being updated to Pro-Touring
97 Z-28

[This message has been edited by Redrum (edited 02-21-2002).]