Current Classifieds

I need a 1976 hood
Date: 12/19/2016 06:02 pm
1975 rear end, 8 inch, drum brakes, and axles, 3.4 gear.

Date: 11/08/2019 10:01 am
parting out 1975 & 80 pintos
Date: 10/31/2018 12:00 pm
99' 2.5l lima cylinder head

Date: 01/13/2017 01:56 am
Need Mustang II Manual Transmission Mount
Date: 04/21/2017 02:03 pm
Pinto wagon Parts
Date: 06/23/2021 03:25 pm
I need a 1976 hood
Date: 12/19/2016 06:02 pm
Need 4 wheel center caps for 77 Pinto Cruzin Wagon
Date: 10/03/2018 02:00 pm
1979/80 Pinto needs to be saved
Date: 09/10/2018 10:41 pm
Steering Wheel Needed for 1972 Pinto
Date: 08/08/2018 12:26 pm
Early 2.0 engines
Date: 05/09/2018 12:45 pm
rear hatch back louvers

Date: 04/18/2017 12:44 pm

Author Topic: Vinegar for galvanized removal  (Read 393 times)

0 Members and 1 Guest are viewing this topic.

Offline LongTimeFordMan

  • PCCA VIP
  • Pinto Sr. Member
  • ***
  • Posts: 419
  • FeedBack: +181/-0
  • Gender: Male
  • 1973 Red Pinto Wagon

  • Total Badges: 6
    Badges: (View All)
    Fifth year Anniversary Topic Starter Signature Windows User Linux User Mobile User
Vinegar for galvanized removal
« on: November 18, 2019, 11:31:54 AM »
Hi all..

As I mentioned in another post here I am redesigning the custom manifold I built awhile back to fit 2 SU sidedrafts to my 2.0 and am planning to use some 1 1/4 galvanized EMT conduit for runners.

Since its not advisable to weld galvanized i want to remove the zinc.

I have  been reading that vinegar can be used to etch off the zinc..

Has anyone had experience with this
Red 1973 pinto wagon DD, SoCal desert car, Factory 4 speed, 3.40 gears, Stock engine, 14" rims and tires, 60 K original miles

Offline Wittsend

  • Pinto Master
  • *****
  • Posts: 2340
  • FeedBack: +241/-0

  • Total Badges: 8
    Badges: (View All)
    Tenth year Anniversary Mobile User Topic Starter Poll Voter 1000 Posts Linux User Windows User Fifth year Anniversary
Re: Vinegar for galvanized removal
« Reply #1 on: November 18, 2019, 11:40:43 AM »
If not vinegar then likely phosphoric acid. But, even there you will have to likely lightly sand the surfaces if it works. Recently working on my Corvair I have used the washing soda and a sacrificial steel piece to transfer rust. I'm wondering if you could do the same to remove the galvanization???

Offline LongTimeFordMan

  • PCCA VIP
  • Pinto Sr. Member
  • ***
  • Posts: 419
  • FeedBack: +181/-0
  • Gender: Male
  • 1973 Red Pinto Wagon

  • Total Badges: 6
    Badges: (View All)
    Fifth year Anniversary Topic Starter Signature Windows User Linux User Mobile User
Re: Vinegar for galvanized removal
« Reply #2 on: November 18, 2019, 11:46:31 AM »
I was thinking of using concentrated vinegar and adding some table salt to make hydrochloric  acid to speed up the process and maybe warming the solution a bit and placing it in the sun to keep it warm.

Ill give it a try and report back.
Red 1973 pinto wagon DD, SoCal desert car, Factory 4 speed, 3.40 gears, Stock engine, 14" rims and tires, 60 K original miles

Offline JoeBob

  • Pinto Sr. Member
  • ****
  • Posts: 510
  • FeedBack: +51/-0
  • Gender: Male

  • Total Badges: 7
    Badges: (View All)
    Photographer Topic Starter Signature Tenth year Anniversary Poll Voter Windows User Fifth year Anniversary
Re: Vinegar for galvanized removal
« Reply #3 on: November 18, 2019, 02:42:33 PM »
If you see white powder on your weld there is still zinc present.   
77 yellow Bobcat hatchback
Deuteronomy 7:9

Offline Wittsend

  • Pinto Master
  • *****
  • Posts: 2340
  • FeedBack: +241/-0

  • Total Badges: 8
    Badges: (View All)
    Tenth year Anniversary Mobile User Topic Starter Poll Voter 1000 Posts Linux User Windows User Fifth year Anniversary
Re: Vinegar for galvanized removal
« Reply #4 on: November 19, 2019, 11:40:10 AM »
And, isn't it interesting that the "Weld Thru Primers" as far as I know contain zinc. Go figure.