Duplex Systems
How does galvanized steel perform in seawater splash zones?
Splash zones are the most aggressive environment for hot-dip galvanized steel (or any other protective coating) because as the zinc coating reacts with the chlorides
What are the specific requirements for painting over hot-dip galvanized steel?
The specification for preparing hot-dip galvanized steel for painting or powder coating is ASTM D 6386. Successfully painting or powder coating hot-dip galvanized steel, also known
Why paint over galvanized steel may fail
Paint failure mechanisms are somewhat complex when paint is applied over hot-dip galvanized steel, otherwise known as a duplex system, and they may be manifested
Reasons to Duplex (Paint or Powder) Coat over Hot-dip Galvanized Steel
There are seven good reasons to paint or powder coat hot-dip galvanized steel:
Extended Durability – in what is called the synergistic effect between galvanized steel
Preparing the hot-dip galvanized steel surface for painting or powder coating
Similar to painting over black steel, surface preparation is critical when painting or powder coating over the zinc coating of hot-dip galvanized steel. However, before
Painting or powder coating system types to be used over hot-dip galvanized steel
The selection of a paint system or powder coating to apply over a galvanized surface is critical to the success of a duplex system. Zinc
