Por 15 or something else? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevybill · 10-18-2004, 06:41 PM

Hey everybody, I will soon be down to the rails on my 70 c 10 project and would like suggestions on products to put on the rails, frame etc of the truck.
It will be a driver, but I intend for it to look very nice and detailed on the bottom side as well.

Experiences and input appreciated.

Por 15? eastwood's rust encapsulator? or other ?

Thanks everybody, cab is almost ready to come off

sdmahr · 10-18-2004, 08:15 PM

Go POR15. It is the BEST IMO.

Tx Firefighter · 10-18-2004, 08:19 PM

POR15- I love the stuff. Can't be beat.

Sweet72 · 10-18-2004, 09:45 PM

I've used POR and don't particularly care for it. It's too tempermental, very humidity sensitive since it's a moisture cured urethane and tends to cure in the can if you don't use it all the first time or two, And as far as their claim "Paint Over Rust" goes, don't even think about it. POR's slick finish fades quickly to a black chalky mess when exposed to UV rays, I wouldn't recommend it. Blast the entire frame down to bare metal and clean it well. I personally prefer eastwood's chassis black over their rust encapsulator. Very nice results with a paint gun. Powder coat seems to be the chassis coating of choice for a lot of people here if you can afford it.

70c10 · 10-18-2004, 09:34 PM

My truck frame was done with POR-15 about 5 years ago and still looks pretty good. I may recoat it this winter.

Cethern · 10-18-2004, 09:53 PM

I have not used either, But after what I read on Eastwoods site I think I would go with them. But seeing how I haven't used POR15 or Eastwoods. My .02 is worth about .01.

Cethern

Solver · 10-18-2004, 10:08 PM

I haven't used eastwood but have used por extensively.
My big complaint with por 15 is like said above. If left to the sun for a week or so the bueatiful gloss black finish becomes a chalky black finish.I love it for anything covered or unexposed to sun (undercab,inside cab floor, inside doors, under box ) The stuff dries rock hard and is veryyyyy chip resistant. Painted my firewall and then it sat outside for a week . No front clip just cab. Ended up pulling the heater box off later and painting under there also. You can see what the sun does to the shine. I will have to repaint the fire wall gloss black or body color now

sdmahr · 10-18-2004, 10:19 PM

POR cleary states it is not UV resistant. It must be top-coated if it is exposed to UV rays. It is the coating of choice for me UNDER the truck.

Good luck !

Longhorn Man · 10-18-2004, 10:48 PM

I say POR...that stuff is awsome. just don't fall asleep in a car with a can busted open all over the trunk.
As far as the UV thing, it does in fact say that on the can...it is supposed to be painted.
However, there is the Chassis black POR that DOES hold up to UV light and doesn't need to be painted.

PTS Kustoms · 10-18-2004, 11:41 PM

Make sure the metal is degreased and etched before use. I used a sponge applicator with POR-15 to avoid brush strokes. The stuff is self leveling to a point. Oh be absolutely sure to wear a respirator when applying and also buy small cans rather than gallon to avoid humidity curing in the can...

Perry
PTS

MOTHERTRUCKERS · 10-19-2004, 07:28 AM

We don't do frames with anything but PPG products. Their 2k etch primer,2k primers, paint and sometimes clear are the only way to go for a quality long lasting restored or custom frame.

Dean · 10-19-2004, 07:51 AM

I did my last frame with POR 15 and then their topcoat. So far very very durable. I took no chances even though the frame sees very little if any UV.

I sure don't recommend any PPG DP90 on frames. That stuff didn't last very long on my blue K20.

GMC AMI · 10-19-2004, 07:54 AM

I know this may sound a little off, I used bed liner, Rhino or any comparable
product, and this makes a very durable coating and seals off the rust from forming. After it sets up it is very hard to even chip off. Just another option, Mike

john@thepier · 10-19-2004, 07:51 AM

I'm with mothertrucker on this one. PPG is the way to go .I have used their two part epoxy on several of my truck frames,and years later it still looks fresh.completely degrease the frame,wash ,rinse,sand blast ,epoxy prime .chasis black paint job. nicest job you will get.

10-18-2004, 06:41 PM	#1
chevybill Senior Member Join Date: Oct 2004 Location: calhoun city ms Posts: 940	Por 15 or something else? Hey everybody, I will soon be down to the rails on my 70 c 10 project and would like suggestions on products to put on the rails, frame etc of the truck. It will be a driver, but I intend for it to look very nice and detailed on the bottom side as well. Experiences and input appreciated. Por 15? eastwood's rust encapsulator? or other ? Thanks everybody, cab is almost ready to come off __________________ ongoing 1970 c 10 lwb 1994 z-28 few mods.-owned since new 1978 vette silver/grey 25th anniv. paint

10-18-2004, 08:19 PM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	POR15- I love the stuff. Can't be beat. __________________ I'm on the Instagram- @Gearhead_Kevin

10-18-2004, 09:45 PM	#4
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	I've used POR and don't particularly care for it. It's too tempermental, very humidity sensitive since it's a moisture cured urethane and tends to cure in the can if you don't use it all the first time or two, And as far as their claim "Paint Over Rust" goes, don't even think about it. POR's slick finish fades quickly to a black chalky mess when exposed to UV rays, I wouldn't recommend it. Blast the entire frame down to bare metal and clean it well. I personally prefer eastwood's chassis black over their rust encapsulator. Very nice results with a paint gun. Powder coat seems to be the chassis coating of choice for a lot of people here if you can afford it. __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction. Last edited by Sweet72; 10-18-2004 at 09:49 PM.

10-18-2004, 09:34 PM	#5
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	My truck frame was done with POR-15 about 5 years ago and still looks pretty good. I may recoat it this winter. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

10-18-2004, 09:53 PM	#6
Cethern What was I thinking?? Join Date: Dec 2003 Location: Commerce City Co Posts: 637	I have not used either, But after what I read on Eastwoods site I think I would go with them. But seeing how I haven't used POR15 or Eastwoods. My .02 is worth about .01. Cethern __________________ 72 K5 that needs lots of parts.. 71 GMC 3/4 4x4 That doesn't need much which is a good thing I don't think I could aford another money pit...

10-18-2004, 08:15 PM	#2
sdmahr Registered User Join Date: Apr 2004 Location: South Texas....the Valley Posts: 199	Go POR15. It is the BEST IMO.

10-18-2004, 10:08 PM	#7
Solver Registered User Join Date: May 2000 Location: Storm Lake, Ia Posts: 1,449	I haven't used eastwood but have used por extensively. My big complaint with por 15 is like said above. If left to the sun for a week or so the bueatiful gloss black finish becomes a chalky black finish.I love it for anything covered or unexposed to sun (undercab,inside cab floor, inside doors, under box ) The stuff dries rock hard and is veryyyyy chip resistant. Painted my firewall and then it sat outside for a week . No front clip just cab. Ended up pulling the heater box off later and painting under there also. You can see what the sun does to the shine. I will have to repaint the fire wall gloss black or body color now Attached Images __________________ 1972 Cheyenne Super 20 LWB-Blue 1972 Cheyenne Super 10 LWB-Black 1972 Cheyenne Super 10 LWB-Red 1972 Cheyenne Super 10 LWB-green 1972 GMC 4x4 LWB-White 1971 Cheyenne 10 LWB-Ochre 1971 Cheyenne 20 Longhorn-Copper 1971 Cheyenne 20 Longhorn-Black 1969 Custom 10 LWB-lt blue 1968 GMC 3/4 ton-green 1968 1/2 ton swb stepside-silver 1967 Chevrolet CST 10 LWB-green 1967 Chevrolet custom 20 LWB-Maroon

10-18-2004, 10:19 PM	#8
sdmahr Registered User Join Date: Apr 2004 Location: South Texas....the Valley Posts: 199	POR cleary states it is not UV resistant. It must be top-coated if it is exposed to UV rays. It is the coating of choice for me UNDER the truck. Good luck !

10-18-2004, 10:48 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	I say POR...that stuff is awsome. just don't fall asleep in a car with a can busted open all over the trunk. As far as the UV thing, it does in fact say that on the can...it is supposed to be painted. However, there is the Chassis black POR that DOES hold up to UV light and doesn't need to be painted.

10-18-2004, 11:41 PM	#10
PTS Kustoms Registered User Join Date: Feb 2004 Location: Roswell, N.M. Posts: 210	Make sure the metal is degreased and etched before use. I used a sponge applicator with POR-15 to avoid brush strokes. The stuff is self leveling to a point. Oh be absolutely sure to wear a respirator when applying and also buy small cans rather than gallon to avoid humidity curing in the can... Perry PTS

10-19-2004, 07:28 AM	#11
MOTHERTRUCKERS Registered User Join Date: Dec 1999 Location: BRADENTON FLA Posts: 3,269	We don't do frames with anything but PPG products. Their 2k etch primer,2k primers, paint and sometimes clear are the only way to go for a quality long lasting restored or custom frame. __________________ Rest in Peace Ed. Thanks for all the good times.

10-19-2004, 07:51 AM	#12
Dean Senior Member Join Date: Jan 2000 Location: Cincinnati, Ohio Posts: 1,492	I did my last frame with POR 15 and then their topcoat. So far very very durable. I took no chances even though the frame sees very little if any UV. I sure don't recommend any PPG DP90 on frames. That stuff didn't last very long on my blue K20.

10-19-2004, 07:54 AM	#13
GMC AMI Registered User Join Date: Apr 2004 Location: The Other Maine! Posts: 2,236	Rhino liner for the frame? I know this may sound a little off, I used bed liner, Rhino or any comparable product, and this makes a very durable coating and seals off the rust from forming. After it sets up it is very hard to even chip off. Just another option, Mike __________________ 1968 Chevy 4x4 307 4 speed

10-19-2004, 07:51 AM	#14
john@thepier Senior Member Join Date: Aug 2004 Location: Lake Geneva, WI 53147 Posts: 970	I'm with mothertrucker on this one. PPG is the way to go .I have used their two part epoxy on several of my truck frames,and years later it still looks fresh.completely degrease the frame,wash ,rinse,sand blast ,epoxy prime .chasis black paint job. nicest job you will get.



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