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Painting Galvanized steel #1060047 Sat Oct 04 2014 01:23 AM
Joined: Dec 2000
Posts: 3,541
D
Deve Offline OP
Gas Pumper
So I want to paint the drawers I had the local HVAC company do. They use Galvanized mild steel. Galv is something I don't know much about. Its a coating, so I have had success welding it, but when it comes to Epoxy primer like DPLF, what is the correct procedure for prep? Thanks!


Deve

1950 Chevy 3100 Deluxe Cab
1950 Chevy 3100 Standard Cab
In the Stovebolt Gallery
The Think Tank
More info and tips at Deve's Technet
Re: Painting Galvanized steel [Re: Deve] #1060050 Sat Oct 04 2014 01:56 AM
Joined: Feb 2002
Posts: 12,860
F
Flxible Offline
Extreme Gabster
best prep for galvanized is a vinegar wipe down .... hopefully you're using a respirator when welding that stuff, zinc is not lung friendly

Bill


"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics
Re: Painting Galvanized steel [Re: Deve] #1060052 Sat Oct 04 2014 02:03 AM
Joined: Aug 2000
Posts: 1,329
D
DennisM Offline
Shop Shark
If you want to use spendy PPG stuff, it would be DX579 metal cleaner followed by DX520 metal conditioner. Same as for regular steel but use an abrasive pad with the cleaner.

Dennis


40 Chevy 1/2 ton
Re: Painting Galvanized steel [Re: Deve] #1060057 Sat Oct 04 2014 02:08 AM
Joined: Dec 2000
Posts: 3,541
D
Deve Offline OP
Gas Pumper
What about stuffing them in my blast cabinet and roughing it up a bit? All I have is DX330 metal prep. Any yes, I am very careful around galvanized. Thanks!


Deve

1950 Chevy 3100 Deluxe Cab
1950 Chevy 3100 Standard Cab
In the Stovebolt Gallery
The Think Tank
More info and tips at Deve's Technet
Re: Painting Galvanized steel [Re: Deve] #1060074 Sat Oct 04 2014 03:12 AM
Joined: Sep 2010
Posts: 305
P
Peter_H Offline
Shop Shark
There is a special primer designed specifically for use on galvanized. Anything else is not recommended. Since using it I have not had any failures.


1951 Chevy 3100 5-Window
"Howard"
In the Stovebolt Gallery
More pix on Photobucket
Re: Painting Galvanized steel [Re: Deve] #1060076 Sat Oct 04 2014 03:16 AM
Joined: Sep 2001
Posts: 28,464
tclederman Offline
Boltergeist


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban - part of the family for 48 years
1954 3104 5-window pickup w/Hydra-Matic - part of the family for 14 years
Z-series (54/55) GMC 350 (2-ton) COE - now part of Dave's family
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engine are not "splash oilers" - this is a splash oiler.
Re: Painting Galvanized steel [Re: Deve] #1060104 Sat Oct 04 2014 04:49 AM
Joined: Jan 2013
Posts: 1,426
J
Jim Sears Offline
Shop Shark
You can yes any good etching primer on galvy or aluminum.

If it is a reasonable small job the rattle can stuff works just fine. Never had a failure. Rustoleum has it in their pro series.

For spray gun work any industrial Chromate will work for both and stainless as well.


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