Which coating is better for steel for corrosive environment?
Which coating is better for steel for corrosive environment?
(OP)
Hi all
I'd like to know if zinc or Tin is a better metal for coating of steel? And what should be the other pole of the electroplating?
And how is the cost of the process calculated?
I'd like to know if zinc or Tin is a better metal for coating of steel? And what should be the other pole of the electroplating?
And how is the cost of the process calculated?





RE: Which coating is better for steel for corrosive environment?
"Corrosive environment" covers a cavernous range of potential environments and temperatures.
RE: Which coating is better for steel for corrosive environment?
RE: Which coating is better for steel for corrosive environment?
Some alternatives:
SYSTEM 05: HOT DIPPED GALVANISING
BASE METAL -STEEL
CLEANING -TO SSPC-SP 1 AND SSPC-SP 10
HDG -TO ASTM A123, THICKNESS TO Z275
SYSTEM 12: THREE PART EPOXY COATING OVER HDG
BASE METAL -HDG STEEL
CLEANING -TO SSPC-SP 1
PRIMER -DEVOE DEVRAN 201 EPOXY
SUBCOAT -DEVOE 'BARRUST 235 - MULTIPURPOSE EPOXY COATING'
TOPCOAT -DEVOE 'DEVTHANE 379H - ALIPHATIC URETHANE GLOSS ENAMEL'
SYSTEM 24: TWO PART EPOXY COATING WITH ZINC RICH PRIMER AND TOPCOAT
BASE METAL -STEEL
CLEANING -TO SSPC-SP 1 AND SSPC-SP 10
PRIMER -DEVOE 'CATHACOAT 302HB - REINF INORGANIC ZINC PRIMER
SUBCOAT -DEVOE 'BARRUST 235 - MULTIPURPOSE EPOXY COATING'
TOPCOAT -DEVOE 'DEVTHANE 379H - ALIPHATIC URETHANE GLOSS ENAMEL'
You can use products that may be more common to your area.
Dik
RE: Which coating is better for steel for corrosive environment?
You should talk to a local coating supplier, in particular, if you have a really corrosive environment. My experience with coating tekkies (and not paint salesmen) is that they are quite good.
Dik