Surface Rust

Moderators: Sluggo, Amskeptic

User avatar
whc03grady
IAC Addict!
Location: Livingston Montana
Contact:
Status: Offline

Surface Rust

Post by whc03grady » Wed Feb 15, 2012 9:24 am

How much does one worry about this sort of sunburn? Run away?

Image
Ludwig--1974 Westfalia, 2.0L (GD035193), Solex 34PDSIT-2/3 carburetors.
Gertie--1971 Squareback, 1600cc with Bosch D-Jetronic fuel injection from a '72 (E brain).
Read about their adventures:
http://www.ludwigandgertie.blogspot.com

User avatar
RSorak 71Westy
IAC Addict!
Location: Memphis, TN
Contact:
Status: Offline

Re: Surface Rust

Post by RSorak 71Westy » Wed Feb 15, 2012 9:34 am

No thats not really a big deal at all. They make some marvelous rust removers these days and then prime and paint.
Take care,
Rick
Stock 1600 w/dual Solex 34's and header. mildly ported heads and EMPI elephant's feet. SVDA W/pertronix. 73 Thing has been sold. BTW I am a pro wrench have been fixing cars for living for over 30 yrs.

User avatar
Amskeptic
IAC "Help Desk"
IAC "Help Desk"
Status: Offline

Re: Surface Rust

Post by Amskeptic » Wed Feb 15, 2012 9:51 am

whc03grady wrote:How much does one worry about this sort of sunburn? Run away?

Image
Any rust that is not structural is surmountable. The surface will be almost invisibly pocked after you have sanded it down, so you will want to clean it well and use a good metal bonding primer. Cute car. You want it?
Colin
BobD - 78 Bus . . . 112,660 miles
Chloe - 70 bus . . . 206,845 miles
Naranja - 77 Westy . . . 129,490 miles
Pluck - 1973 Squareback . . . . . . 55,570 miles
Alexus - 91 Lexus LS400 . . . 94,225 miles

User avatar
whc03grady
IAC Addict!
Location: Livingston Montana
Contact:
Status: Offline

Re: Surface Rust

Post by whc03grady » Wed Feb 15, 2012 10:32 am

Amskeptic wrote:
Image

Cute car. You want it?
Colin
I do (assuming it's in good shape otherwise, of course), for Esmé who turns 4 on Sunday. I've been kind-of-but-not-so-seriously looking at Beetles for her because (a) she likes them (she wants to paint each panel a different color, which I'm not horrified by); (b) by the time she's old enough to drive, I suspect even later-model, unremarkable ACVWs, even Beetles, will be pretty expensive.
Ludwig--1974 Westfalia, 2.0L (GD035193), Solex 34PDSIT-2/3 carburetors.
Gertie--1971 Squareback, 1600cc with Bosch D-Jetronic fuel injection from a '72 (E brain).
Read about their adventures:
http://www.ludwigandgertie.blogspot.com

User avatar
hambone
Post-Industrial Non-Secular Mennonite
Location: Portland, Ore.
Status: Offline

Re: Surface Rust

Post by hambone » Wed Feb 15, 2012 11:19 am

Check out my type3 resto, that thing was solid patina. Used a palm sander and then lots of elbow grease.
Afterwards, pickle with naval jelly, wash it off with water. Use rust catalyzing primer on the minor pits, POR15 on the deep stuff.
Make sure the heater channels under the doors are ok, that is pretty much a death sentence for a Beetle.
http://greencascadia.blogspot.com
http://pdxvolksfolks.blogspot.com
it balances on your head just like a mattress balances on a bottle of wine
your brand new leopard skin pillbox hat

User avatar
Amskeptic
IAC "Help Desk"
IAC "Help Desk"
Status: Offline

Re: Surface Rust

Post by Amskeptic » Thu Feb 16, 2012 12:33 pm

hambone wrote: Make sure the heater channels under the doors are ok, that is pretty much a death sentence for a Beetle.
They sell replacements. Keep driving. I am sad that these cars are just disappearing on us. I shall take a Hippie Welding Class.
Colin
BobD - 78 Bus . . . 112,660 miles
Chloe - 70 bus . . . 206,845 miles
Naranja - 77 Westy . . . 129,490 miles
Pluck - 1973 Squareback . . . . . . 55,570 miles
Alexus - 91 Lexus LS400 . . . 94,225 miles

User avatar
Bleyseng
IAC Addict!
Location: Seattle again
Contact:
Status: Offline

Re: Surface Rust

Post by Bleyseng » Thu Feb 16, 2012 3:15 pm

Once sanded down to bare clean metal use a epoxy primer to seal the fresh metal then a sanding primer. H20 goes thru most primers and I don't like Por15.
You can also use Ospho first to neutralize the rust then the epoxy primer...
Geoff
77 Sage Green Westy- CS 2.0L-160,000 miles
70 Ghia vert, black, stock 1600SP,- 139,000 miles,
76 914 2.1L-Nepal Orange- 160,000+ miles
http://bleysengaway.blogspot.com/

User avatar
hambone
Post-Industrial Non-Secular Mennonite
Location: Portland, Ore.
Status: Offline

Re: Surface Rust

Post by hambone » Fri Feb 17, 2012 10:08 am

Replacements are available, but this is major surgery. It is a multipiece assembly, and it must be welded together with precision or the body won't be plumb. Expensive.
POR15 works really well in the wet NW, I swear by the stuff after years of trouble-free use.
http://greencascadia.blogspot.com
http://pdxvolksfolks.blogspot.com
it balances on your head just like a mattress balances on a bottle of wine
your brand new leopard skin pillbox hat

User avatar
Bleyseng
IAC Addict!
Location: Seattle again
Contact:
Status: Offline

Re: Surface Rust

Post by Bleyseng » Fri Feb 17, 2012 11:48 am

I have had por 15 peel off clean bare metal in a few years, not good. Epoxy primer is awesome stuff for a base.
Geoff
77 Sage Green Westy- CS 2.0L-160,000 miles
70 Ghia vert, black, stock 1600SP,- 139,000 miles,
76 914 2.1L-Nepal Orange- 160,000+ miles
http://bleysengaway.blogspot.com/

User avatar
Amskeptic
IAC "Help Desk"
IAC "Help Desk"
Status: Offline

Re: Surface Rust

Post by Amskeptic » Fri Feb 17, 2012 1:12 pm

Bleyseng wrote:I have had por 15 peel off clean bare metal in a few years, not good. Epoxy primer is awesome stuff for a base.
Brand? website review? Discussion of how we could have such a disparate experience? Did you Por15 on a hot humid day in Suriname?
Colin??
BobD - 78 Bus . . . 112,660 miles
Chloe - 70 bus . . . 206,845 miles
Naranja - 77 Westy . . . 129,490 miles
Pluck - 1973 Squareback . . . . . . 55,570 miles
Alexus - 91 Lexus LS400 . . . 94,225 miles

User avatar
hambone
Post-Industrial Non-Secular Mennonite
Location: Portland, Ore.
Status: Offline

Re: Surface Rust

Post by hambone » Fri Feb 17, 2012 4:34 pm

POR15 needs a rusty or rough surface or it won't adhere correctly. It doesn't like to go over shiny paint either, it will peel.
I've used it for an undercoating substitute on my bus, even behind the wheels. It is tough stuff.
I have used gallons of the stuff over the years, floor pans, heat exchangers, bumpers you name it.
http://greencascadia.blogspot.com
http://pdxvolksfolks.blogspot.com
it balances on your head just like a mattress balances on a bottle of wine
your brand new leopard skin pillbox hat

vdubyah73
IAC Addict!
Status: Offline

Re: Surface Rust

Post by vdubyah73 » Fri Feb 17, 2012 5:53 pm

brake fluid will lift it. it will lift under a floor mat to. both happened on my buggy. whole pan was sand blasted to bare metal. floor mat was caused by grit scratches. m/c leak into the crossmember for a period of time caused the drivers side bottom to peel in sheets. i didn't use their metal prep stuff. would it have made a difference? maybe.
1/20/2013 end of an error
never owned a gun. have fired a few.

User avatar
ruckman101
Lord God King Bwana
Location: Up next to a volcano.
Contact:
Status: Offline

Re: Surface Rust

Post by ruckman101 » Fri Feb 17, 2012 6:30 pm

The metal prep eats into the metal, etching it a bit, giving it "tooth" for the POR 15 to adhere to.


neal
The slipper has no teeth.

vdubyah73
IAC Addict!
Status: Offline

Re: Surface Rust

Post by vdubyah73 » Sat Feb 18, 2012 1:14 pm

sandblasted the entire pan, when it was in three pieces as well as the new floors. there was no paint, grease or rust on my pan or beam. plenty of tooth from blasting with pressure pot blaster. i think brake fluid is just seriously corrosive. plus it'll suck moisture right out of the air.
hygroscopic??
1/20/2013 end of an error
never owned a gun. have fired a few.

User avatar
RSorak 71Westy
IAC Addict!
Location: Memphis, TN
Contact:
Status: Offline

Re: Surface Rust

Post by RSorak 71Westy » Sat Feb 18, 2012 1:17 pm

Brake fluid is well known for its ability to remove paint.
Take care,
Rick
Stock 1600 w/dual Solex 34's and header. mildly ported heads and EMPI elephant's feet. SVDA W/pertronix. 73 Thing has been sold. BTW I am a pro wrench have been fixing cars for living for over 30 yrs.

Post Reply