Analysis of Epoxy Zinc Rich Primer Thickness for Steel Structures in Different Environments

The epoxy zinc rich primer is a better antiseptic primer, often used in situations where corrosion is severe, with good anti-corrosion performance, adhesion, and good waterproofing.

The thickness of the epoxy zinc rich primer varies in different situations. Today, we are going to understand how thick the epoxy zinc rich primer paint film should be in different environments to achieve better anti-corrosion effects.

The epoxy zinc rich primer is often used in tanks, steel structures, ships, marine platforms, bridge constructions, etc. Let's analyze the anti-corrosion solutions for each of these aspects.

Epoxy zinc rich primer for atmospheric environment steel structures

In this atmospheric environment, in corrosive environments C3C4, epoxy zinc rich primer and epoxy cloud iron intermediate paint are generally used. Chlorinated rubber paint, acrylic polyurethane paint, and fluorocarbon topcoat can be used as the topcoat.

Recommended solution

Epoxy zinc rich primer + epoxy cloud iron intermediate paint + various colors of acrylic polyurethane topcoat.

Paint film thickness

This set of solutions belongs to medium. The anti-corrosion service life is about 5-8 years. The thickness of epoxy zinc rich primer is one layer of 80μm, epoxy cloud iron intermediate paint is one layer of 60μm, and various colors of acrylic polyurethane topcoat are two layers of 60μm.

Epoxy zinc rich primer for port mechanical equipment

Recommended solution

Epoxy zinc rich primer + epoxy cloud iron intermediate paint + various colors of acrylic polyurethane topcoat or various colors of chlorinated rubber topcoat

Paint film thickness

The thickness of epoxy zinc rich primer is one layer of 60μm, cloud iron intermediate paint is two layers of 80μm, chlorinated rubber topcoat is two layers of 70μm. If acrylic polyurethane topcoat is used, the thickness of the paint film is two layers of 80μm.

Epoxy zinc rich primer for steel structures in water-immersed or humid areas

Recommended solution

Epoxy zinc rich primer + epoxy cloud iron intermediate paint + thick paste epoxy coal tar paint.

Paint film thickness

The epoxy zinc rich primer is one layer of 60μm, epoxy cloud iron intermediate paint is two layers of 80μm, and the thickness of the thick paste epoxy coal tar paint is two layers of 150μm.

Epoxy zinc rich primer for the inner and outer walls of tanks

Recommended solution for inner walls

Epoxy zinc rich primer + oil-resistant electrostatic epoxy topcoat. The thickness of the epoxy zinc rich primer for inner walls is two layers of 90μm, and the epoxy topcoat is three layers of 120μm.

Recommended solution for outer walls

Epoxy zinc rich primer + epoxy cloud iron intermediate paint + various colors of acrylic polyurethane topcoat. The thickness of the epoxy zinc rich primer for the outer walls is one layer of 70μm, the cloud iron intermediate paint is one layer of 80μm, and the various colors of acrylic polyurethane topcoat are two layers with a total thickness of 100μm.

The thickness of the epoxy zinc rich primer is mainly determined by your anti-corrosion requirements, service life, and matching solutions. Generally, the higher the anti-corrosion service life, the thicker the paint film. The specific thickness still depends on the specific environment.