-
-
Projects
-
Media
-
About Zindn
0510-85626800
Maintenance value-added service
Extend asset life
Steel pretreatment
When the steel structure is repaired, the surface generally has serious corrosion, and it cannot be thoroughly sandblasted or shot blasted like a new construction project. It is often only possible to perform simple polishing and cleaning. The rust cannot be completely removed, and the surface is affected during construction. The environmental impact is relatively large, leading to adhesion problems and the coating failure.
Zindn can provide suitable solutions for the pre-treatment of steel during repairs.
Rust treatment
Steel materials need to be sandblasted or polished before they can be painted. When sandblasting and polishing, problems such as time-consuming, high noise, high cost, unclean and incomplete substrate treatment, especially maintenance and rust removal, will occur. The pre-treatment is very troublesome, and the rust coating scheme is required at this time.
Zindn is a new generation of water-based rust conversion coating, which dries quickly and has low VOC content. It converts the rust layer on the surface of steel into a protective film that is tightly combined with steel and protects the steel substrate at room temperature. It can completely solve the problem of rust removal during maintenance and construction.
|
Location
|
Protection plan
|
Road number
|
Thickness (μm)
|
|---|---|---|---|
|
C5 corrosion environment steel structure repair (difficult to remove rust surface)
|
Surface pretreatment
|
Remove loose rust and oil stains
|
|
|
Water-based rust conversion primer
|
1
|
30
|
|
|
Epoxy anti-rust primer
|
1
|
80
|
|
|
Epoxy Mica Intermediate Paint
|
2
|
160
|
|
|
Fluorocarbon topcoat/polysiloxane topcoat
|
2
|
80
|
|
Low surface treatment
In general, the higher the surface treatment level, the higher the adhesion of the paint film to the substrate. However, in reality, the surface treatment is often unsatisfactory, failing to meet the requirements of sandblasting Sa2.5 and roughness. At the same time, environmental conditions will also affect adhesion, and high relative air humidity will cause the following problems:
①Condensation on the surface of the substrate increases; ②Condensation leads to flash rust, causing coating failure; ③The condensed water vapor generated on the surface of the substrate may cause blistering and delamination of the paint film;
For the possible coating failure problems of the above substrate conditions, Zinc Shield has introduced a low surface treatment primer coating system program. The low surface treatment primer of this program has low requirements for the treatment of the substrate, and the wetness of the substrate surface Insensitive to air, it can effectively solve the problems that plague customers.
|
Location
|
Protection plan
|
Road number
|
Thickness(μm)
|
|---|---|---|---|
|
Surfaces that cannot be thoroughly rusted and cleaned
|
Surface pretreatment
|
Polished to St3 level
|
|
|
Low surface treatment epoxy primer
|
1
|
80
|
|
|
Epoxy Mica Intermediate Paint
|
2
|
160
|
|
|
Fluorocarbon topcoat/polysiloxane topcoat
|
2
|
80
|
|
Zinc Shield Maintenance Construction Qualification
Zindn maintenance and construction technical service personnel qualification
Maintenance engineering business process
Detailed maintenance engineering business process
Contact Us
Headquarters Tel:
Business Hotline:
E-mail:
WhatsApp/Wechat:
Address:
9/F, Wai Chuang Building, 999 Gaolang East Road, Binhu District, Wuxi
Public Security Record No. 32021102000961| Su (tin) dangerous chemical word 02802