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#1 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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POR-15 on drip rails/gutters channel...
Anyone done this? Any pros or cons?
I was redoing the drip rails and had them all clean and shiny using a bronze wire wheel and decided to paint the channel with POR-15 first. I had some left from some painting I did earlier. I am going to come back with 3M sealer in a few days. So far it looks pretty solid. |
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#2 |
Registered User
Join Date: Apr 2007
Location: Kalamazoo, Michigan, USA
Posts: 538
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Re: POR-15 on drip rails/gutters channel...
I am thinking of doing the same to mine only with pm industries rust sealer. I was wondering if it would affect the bond of the seam sealer.
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1970 K20, 350--- SOLD 05 silverado extended cab short box- duramax Jeep wrangler unlimited |
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#3 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: POR-15 on drip rails/gutters channel...
I was going to rough up the POR slightly with sand paper just in case. I sort of layed it on pretty heavy on mine so it would flow into any potential openings. If the sealer doesn't stick, it still has pretty good protection.
I did that yesterday morning and today it looks solid as metal, almost. I didn't have any rust at all just noticed the old sealant was getting old and crackly. |
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#4 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: POR-15 on drip rails/gutters channel...
if i ever do drip rails again i'd use the porpatch as a base//its just thickened por15 comes in a tube like toothpaste and works really well
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#5 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: POR-15 on drip rails/gutters channel...
cdowns, I didn't know POR made a sealer... I did a search an found it
http://www.por15.com/prodinfo.asp?grp=PP&dept=10 I may try that on my 69 Chevy when I do the rails on it. So far I like how the por filled into all of the seams of the drip rail. Thanks. I guess no one has used POR on their drip rails so far. With all of the good things I've heard about POR it ought to be a good base for sealant or a good sealer in itself. |
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#6 |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,516
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Re: POR-15 on drip rails/gutters channel...
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Thing is if you don't shoot a light coat of primer on the POR-15 while it is still tacky nothing will stick to it.... That's according to the POR-15 instruction sheet. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#7 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: POR-15 on drip rails/gutters channel...
Oh, Oh... I'll let you know tomorrow or Sat. Going to try some sealant on it after I scuff it up.
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#8 | |
Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
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Re: POR-15 on drip rails/gutters channel...
Quote:
I've noticed that. I left the stuff dry on my rear axle over night, next day go out and spray-bomb, only to be able to scratch it right off with my finger nail. |
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#9 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,269
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Re: POR-15 on drip rails/gutters channel...
Our trucks have a double layered cab roof. If stored outside, the roof collects moisture (even in the desert) that creates rust. You can have rust inside this cab roof and it can come out at the drip rail seams.
Por 15 is a good rust stopper but I really like epoxy primer then covered with seam sealer. Painting over POR15 never seems to work well unless you cover with POR15 primer within 24hours of the initial coat. |
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#10 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: POR-15 on drip rails/gutters channel...
I used Rust Shield, it works better than POR and can be painted over.....................1/2 the price too.
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#11 |
Registered User
Join Date: Oct 2007
Location: Brandon, FL
Posts: 335
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Re: POR-15 on drip rails/gutters channel...
AGREED...I do not like POR-15. I went with Eastwoods Rust Encapsulator...Works great at stoping rust. I plan on doing this as well on the gutters. You can paint right over this too.
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1967 Fleetside, Sanford and Son Special Ivory/Blue Vinyl, 350/TH-400/12-bolt |
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#12 |
Registered User
Join Date: Feb 2007
Location: Cali Central Coast
Posts: 5,191
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Re: POR-15 on drip rails/gutters channel...
I used this stuff, and the second picture is how it turned out - I'm gonna do a test spot to see if the primer sticks, then put the 2-part sealer in the drip rail. (I still have to double check to make sure I got all the rust).
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'67 SWB Fleetside ZZ4/350/Tremec 5-speed/4link/Scott's IFS - and fun as heck! SOLD ![]() Click here to support the board Philippians 4: 6-7 |
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#13 |
Senior Member
Join Date: Nov 2005
Location: Victor, Montana
Posts: 386
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Re: POR-15 on drip rails/gutters channel...
Yeah, Por 15 is awesome stuff but definitely has it's limitations. I considered puting it on the drip rails of my pickup also, but after reading this post I think I'll do something different. Roughing up Por-15 is tough to do.
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04 4x4 GMC Ext. Cab lifted 71 2wd GMC / Ramjet 350 ready for sheet metal 49 Studebaker pickup |
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#14 |
Registered User
Join Date: Sep 2007
Location: PA.
Posts: 178
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Re: POR-15 on drip rails/gutters channel...
Thanks for posting this, I have some rust issues in the drip rails also.I had been wondering how to go about tackling the repair.Now, I just need the time to do it.
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_____________________________________________ 69 C-20 292, 4 spd O/D, 4:56 rears. No a/c p/s p/b p/w......restoration project,"Operation:Stovebolt" 78 C-10 305 TH350 new (old) daily driver 02 Suburban Z71 a.k.a. the family truckster 99 Silverado 1500 Z71 |
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#15 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: POR-15 on drip rails/gutters channel...
That stuff is only a cleaner..............similar to Naval jelly or Ospho. I would make sure and clean it off thouroughly before anything else goes on it. I have used it and was not impressed with it stopping rust
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#16 |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: POR-15 on drip rails/gutters channel...
Here is what I did:
I flicked out all the old chunks of sealer. It came out in 2-3 inch long pieces that I still occasionally find around the shop. Then I chucked a whire wheel in my drill and removed all the paint and primer and whatever else was there. I was lucky. My truck came from Wyoming where stuff doesn't rust too bad. I had no rust to deal with. Then I used a PPG product - I forget the number but I use it all the time on bare metal. In fact I brushed it on my whole roof including the drip rails. DuPont calls their product Kwik prep. It is an acid and looks blue in the the bottle you buy from your paint jobber. It is made for applications just like this. Cleaned metal, under primer. After following the directions with the junk in the above step, I sprayed PPG epoxy primer. Then I used SEM seam sealer I bought from my paint jobber. Then I sprayed PPG Omni single stage color. The label says MAE. Two years and counting without a lift, bubble, or other bad thing happening.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#17 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: POR-15 on drip rails/gutters channel...
I wire brushed the underside of my cab and wasn't sure what to use.............I tried POR on a small spot of clean metal and the next day i was able to scrape it off with my fingernail...
so right next to it on the same metal.....I used Rust Shield . The next day i would have had to use power tools to remove it!!!!! However in the bed of truck i did a half a** job of cleaning a rustyn spot... used POR and it stuck like crazy... I think it likes a rusted surface and the rust shield doesn't much care. 1/2 price and more user friendly..............I will buy Rust Shield every time... A better product than both is Rust Bullet...............that stuf is like incredible for sticking power.. I have a spot on a pair of Jeans that has been laundered over 1 1/2 years and it still is hard as a rock and bonded on for keeps!!!!! Rust Bullet for the ultimate job.. I used it on the truck till I ran out.
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#18 |
Registered User
Join Date: Feb 2007
Location: Cali Central Coast
Posts: 5,191
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Re: POR-15 on drip rails/gutters channel...
Hmmm. The bottle says it can be topcoated, and the spec sheet says it sticks and is very hard to remove. Sounds like a similar product to POR-15 or rust bullet. I'm not doubting you, but where specifically did you have a problem with this product? I really don't want to have to do this thing over again if it doesn't work well, like you say, and would take the time to use the rust bullet if necessary.
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'67 SWB Fleetside ZZ4/350/Tremec 5-speed/4link/Scott's IFS - and fun as heck! SOLD ![]() Click here to support the board Philippians 4: 6-7 |
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#19 |
fugedaboutit
![]() Join Date: Mar 2005
Location: Gresham, OR
Posts: 832
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Re: POR-15 on drip rails/gutters channel...
You guys having problems with the por15 sticking are you doing all three steps? Just curious
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#20 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: POR-15 on drip rails/gutters channel...
Okay, here's what I did.
I wire brushed the drip channels until I got all the original sealer out. Got the metal shiny. Then I used a rust inhibitor that I got from the auto parts store and sprayed it on the channel. This stuff converts rust and/or protects metal and turns it black. I let that dry for a day and came back and painted with the POR-15. Friday morning as a test, I sprayed part of the channel with Duplicolor without sanding or roughing up the POR-15. I let it dry for a day. I went by there today and tried the "nail" test to see if it would nick the paint or come off. It didn't... I scratched it harder and the duplicolor stayed on. Not sure if this will stay on or hold up to the weather, though. I will paint the rest of the channel to protect it and see what happens. I'm not painting the whole truck yet, just keeping the channel from rusting for now. |
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#21 | |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: POR-15 on drip rails/gutters channel...
Quote:
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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#22 |
Registered User
Join Date: Jun 2007
Location: oregon
Posts: 1,069
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Re: POR-15 on drip rails/gutters channel...
the rooster knows!!
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69 K-20 cloned to a 67 with front clip and some other stuff. 383 .040 over Crane roller cam lifters and rockers ,1.6 intake ratio, Open chamber heads, 9.5-1 compression ratio, 2.02 intake valves , Edelbrock performer Air Gap manifold Carter AFB performer 750cfm, MSD ignition, SM465 NP205 4.10 gears: ![]() |
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