Home » Public Forums » GMCnet » [GMCnet] POR-15 Rust Treatment
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| Re: [GMCnet] POR-15 Rust Treatment [message #279193 is a reply to message #279160] |
Sat, 06 June 2015 07:26   |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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I've used POR-15 for years. Amazing stuff.
One word of caution, do NOT get it on exposed skin. NOTHING takes it off but time. NOTHING!
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] POR-15 Rust Treatment [message #279194 is a reply to message #279193] |
Sat, 06 June 2015 07:34 |
stick miller
Messages: 1036
Registered: March 2010
Location: Americus, Georgia
Karma: 0
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I've (my coach) has a small rust hole in the usual place - passenger side under the battery. I think it can easily be patched while it is small, but I want to stop the rust progression. Would you advise pouring or blowing POR-15 into the frame or what?
Stick Miller
'78 Royale - "White Trash" - she left me for another man
'76 Eleganza - "Cousin Eddie" Sold
'84 Bluebird Wanderlodge - "Past Tents"
Americus, GA
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| Re: [GMCnet] POR-15 Rust Treatment [message #279195 is a reply to message #279194] |
Sat, 06 June 2015 07:48 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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stick miller wrote on Sat, 06 June 2015 07:34... Would you advise pouring or blowing POR-15 into the frame or what?
YEARS ago I was a Finned Mopar guy (think late 50 Chryslers.) I had a bunch of them over the years and they were infamous for rotting out...especially in the rocker panels. I had just discovered POR-15 and came up with the idea of putting some in a garden sprayer with a 4' length of rubber hose hooked to the nozzle. I took the end off the nozzle so the spray would come out in 4 directions. When you inserted the hose through one of the access panels and squeezed the spray handle, POR would spray out the 4 holes and coat the inside of the rocker panels. I'd rotate the hose between my fingers as I pulled it along the rocker and let it just run out any weep holes onto the floor. Be advised, it won't come off the floor either so put something down.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] POR-15 Rust Treatment [message #279196 is a reply to message #279160] |
Sat, 06 June 2015 07:54 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
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What happens if you later put a plasma cutter or welder to a piece of stock that's been POR-15'd?? Instant death by toxic fumes?
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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| Re: [GMCnet] POR-15 Rust Treatment [message #279199 is a reply to message #279160] |
Sat, 06 June 2015 08:58 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
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The problem with older POR-15 projects, like Kerry's rocker panels, is that the new owner wouldn't know to check.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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| Re: [GMCnet] POR-15 Rust Treatment [message #279222 is a reply to message #279202] |
Sat, 06 June 2015 16:54 |
stick miller
Messages: 1036
Registered: March 2010
Location: Americus, Georgia
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OK - at least I now know what MSDS means. So is this stuff harmful or explosive after it hardens? What else, short of replacing the frame, would one do to repair a small rust hole?
Stick Miller
'78 Royale - "White Trash" - she left me for another man
'76 Eleganza - "Cousin Eddie" Sold
'84 Bluebird Wanderlodge - "Past Tents"
Americus, GA
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| Re: [GMCnet] POR-15 Rust Treatment [message #279224 is a reply to message #279160] |
Sat, 06 June 2015 17:28 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Depends on the hole. Existing hole which has grown rust, not a great problem. Large patch of rust which has eaten through the metal in a small place, problem. I(f the metal has rusted thinner than it was, it has lost strength.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] POR-15 Rust Treatment [message #279228 is a reply to message #279222] |
Sat, 06 June 2015 17:55 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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stick miller wrote on Sat, 06 June 2015 16:54... So is this stuff harmful or explosive after it hardens? What else, short of replacing the frame, would one do to repair a small rust hole?
Life is harmful. Look up a MSDS for about ANYTHING. We should all go live in caves...oh wait..mold.
No it's not explosive after it hardens. I would not want to breath the fumes if you welded or cut on it but I doubt SERIOUSLY that it is any worse than any other paint as it burns. Most all paint is flammable in it's liquid state. At least it is not Isocynate based like most automotive paints.
Damn near everything in my shop will kill me if I'm stupid. But then stupid and evolution tends to make one's bloodline rather short. If you are worried about someone putting a torch on it down the road, put a tag on it.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] POR-15 Rust Treatment [message #279245 is a reply to message #279228] |
Sat, 06 June 2015 22:03 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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G'day,
Straight from the horses mouth:
QUOTE
POR-15 Toxicity
Status: Completed
Date Opened: 6/6/2015
Department: General
Opened by: Customer
Last Action Date: 6/6/2015
User/Date Message
Customer
6/6/2015 10:20:13 AM Could you please advise any precautions that should be taken when welding on a frame that has been coated
with POR-15.
Staff (Mike)
6/6/2015 2:02:08 PM Robert, You should grind off the POR-15 prior to welding. Once your welding has been completed properly
clean and prep the welds with our Cleaner Degreaser and Metal Prep. Finally brush on 2 thin covering coats over the welds. Thanks,
Mike
Customer
6/6/2015 8:46:09 PM Thanks Mike! Do I need to worry about any fumes that come off the POR-15 when heated?
Staff (Mike)
6/6/2015 10:54:04 PM Robert, I would NOT recommend welding through POR-15. This is why is suggested grinding it off. If you must
weld through it then yes be careful of the fumes. Wear a respirator. Thanks, Mike
UNQUOTE
My comment: any welder worth his salt will clean the area he's going to weld before he welds it. If you weld through any coating
you're going to get out gassing. If they are REALLY stupid they will weld through a standing liquid like brake cleaner.
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] POR-15 Rust Treatment [message #279251 is a reply to message #279160] |
Sun, 07 June 2015 05:45 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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>any welder worth his salt will clean the area
Tough to do if it was applied inside a frame or rocker panel. That answers my question about my trailers. If I were to POR-15 them, that would mean no future welding.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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| Re: [GMCnet] POR-15 Rust Treatment [message #279252 is a reply to message #279251] |
Sun, 07 June 2015 06:11 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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Senior Member |
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rcjordan wrote on Sun, 07 June 2015 05:45>...If I were to POR-15 them, that would mean no future welding.
RC, Perhaps I'm missing something. What is it that you want to do?
They make these things called Fresh Air Respirators that feature a full face mask and fresh air under pressure. Most all paint shops use them because modern hardened (Isocynates) paints will kill you. Most backyard painters use charcoal masks and take a chance.
Any welding shop that is worth it's salt should have similar equipment. Lots and LOTS of stuff is harmful when heated to vaporization levels.
That's not to say that Bubba's Backyard Metal Stick-to-gather is going to know anything about safety of their employee but they are probably smart enough to have ventilation and not be downwind.
I would not be afraid to weld on a POR-15 painted frame. I'd grind the stuff off on the outside, set up a fan for ventilation, position myself upwind, and use flux core wire for the shielding gas. The fan would blow away the normal shielding gas. I'd take the same steps with most anything that was painted or treated.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
[Updated on: Sun, 07 June 2015 06:13] Report message to a moderator |
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| Re: [GMCnet] POR-15 Rust Treatment [message #279253 is a reply to message #279160] |
Sun, 07 June 2015 06:53 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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>do
Here along the coast, the salt air condensation will rust a tubular steel frame from the inside-out --not in short order, but fast enough that it should be addressed. Weep holes combined with upper vent holes help, but only slow the process. Given the number of mega-farms we have around here, expert welding/fab shops are not a problem ...until you pay the bill. I could have the rust cut and and replaced at good, small, independent shops an order of magnitudes cheaper. (Don't ask me how I know this, the memory is painful.)
I know the local USCG Base spec's some of their welding projects to have the voids filled with linseed oil. That, and my old English car days with Waxoil kept me thinking about doing one large, custom, heavy-duty scissor-jack trailer with an internal treatment like you did the rocker panels.
Mostly, I'm switching to aluminum trailers. Just bought 2 this month off CL. But on my custom trailers, aluminum isn't really an option. I have replaced struts once and know from experience that it's likely to have to be addressed again, I'm having to decide which is the most cost-effective --preventive maintenance or repair. Right now, with POR-15 off the table, weep holes and vents still seems the best option.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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| Re: [GMCnet] POR-15 Rust Treatment [message #279308 is a reply to message #279253] |
Sun, 07 June 2015 20:41 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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To stop anything made of steel in a marine environment from turning into a pile of rust it should be hot dip galvanized.
http://en.wikipedia.org/wiki/Hot-dip_galvanization
In order to hot dip galvanize an area inside the trailer it would have to have holes drilled in it to allow the zinc to enter and
coat the inside. Here's a link to Mark Hogenboom's galvanized GMC frame:
http://www.gmcmhphotos.com/photos/restoration-and-diesel-conversion/p5376.html
Aluminum can be anodized to help prevent corrosion, however, I don't know if it would be as effective as galvanized steel. Finding a
company with tanks large enough to anodize an aluminum trailer may be difficult.
Regards,
Rob M.
The Pedantic Mechanic
-----Original Message-----
From: RC Jordan
Here along the coast, the salt air condensation will rust a tubular steel frame from the inside-out --not in short order, but fast
enough that it should be addressed. Weep holes combined with upper vent holes help, but only slow the process. Given the number of
mega-farms we have around here, expert welding/fab shops are not a problem ...until you pay the bill. I could have the rust cut and
and replaced at good, small, independent shops an order of magnitudes cheaper. (Don't ask me how I know this, the memory is
painful.)
I know the local USCG Base spec's some of their welding projects to have the voids filled with linseed oil. That, and my old English
car days with Waxoil kept me thinking about doing one large, custom, heavy-duty scissor-jack trailer with an internal treatment like
you did the rocker panels.
Mostly, I'm switching to aluminum trailers. Just bought 2 this month off CL. But on my custom trailers, aluminum isn't really an
option. I have replaced struts once and know from experience that it's likely to have to be addressed again, I'm having to decide
which is the most cost-effective--preventive maintenance or repair. Right now, with POR-15 off the table, weep holes and vents
still seems the best option.
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GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] POR-15 Rust Treatment [message #279333 is a reply to message #279160] |
Mon, 08 June 2015 07:33 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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Senior Member |
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>hot dipped
We've sent whole Land Rover 109 chassis to be hot-dipped but this trailer is 30 feet long and replacing-as-required is probably more cost-effective -though it's a pain.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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