行业解决方案
Municipal industry solutions

Municipal industry solutions

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市政行业解决方案

Time of issue:2021-08-05 11:26:01
The necessity of steel structure anticorrosion in municipal engineering

Anti-corrosion durability is always an important issue in municipal engineering construction.
Most municipal engineering projects are exposed to various natural environments or environments with chemical and physical erosion. Improper anti-corrosion treatments lead to a reduction in service life, and even cause overall damage, casualties, economic losses and social impacts. They are mainly composed of materials and It is caused by poor production, natural disasters, various traffic accidents, and metal corrosion, and metal corrosion is the main reason.

Municipal Engineering Steel Structure Coating Reference System>>
 
 

The steel structure of municipal engineering is generally in the corrosive environment of C2 and C3. The corrosive environment is relatively not bad, but it has higher requirements for appearance and decoration performance.
In view of the characteristics of municipal engineering, Zinc Shield recommends the following supporting system schemes:

Examples of painted parts
Protection plan
Road number
thickness(μm)
Municipal steel structure surface
Surface pretreatment
Sandblasting and rust removal reach Sa2.5 level
Cold spray zinc primer
1
60
Cold spray zinc sealant
2
100
Polyurethane finish
2
80
Outer surface of buried pipeline
Surface pretreatment
Spray Sand rust removal reaches Sa2.5 level
Epoxy coal tar pitch primer
1
150
Epoxy coal tar pitch paint
1
150

 

Coating reference system for stadium steel structure>>
 
Examples of painted parts
Protection plan
Road number
thickness(μm)
Indoor steel structure surface of stadium
Surface pretreatment
Sa2.5,Rz40-70μm

ZD96-1Cold spray zinc primer

1
85

ZH53-6 Cold spray zinc sealant

2
100

Fire-retardant coating

2

According to the fire resistance class

ZF95-51Modified fluorocarbon topcoat
2
90
Airport indoor steel structure
Surface pretreatment
Pretreatment SA2.5
Inorganic zinc-rich
1
80μm
Epoxy seal
1
30μm
Epoxy mica
1
100μm
Polyurethane finish
1
2*40μm
Airport outdoor steel structure
Surface pretreatment
Pretreatment SA3.0
Arc spraying zinc aluminum alloy
 
150μm
Epoxy seal
 
30μm
Epoxy mica
 
100μm

Polysiloxane

 
2*30 Micron

 

Coating reference system for traffic steel structure>>
 
Examples of painted parts
Protection plan
Road number
thickness
Elevated station canopy
Secondary surface sandblasting
Sa2.5 level,Rz55-80μm

Water-based cold spray zinc

2
≥2×35mm

Cold spray zinc sealant

2
≥2×40mm

Polyurethane finish

1

≥1×40mm

1 coat of polyurethane topcoat (on-site painting)
1
≥1×40mm
Use library
Secondary surface sandblasting
Sa2.5 level,Rz55-80μm
Water-based cold spray zinc
2
≥2×35mm
Cold spray zinc sealant
2
≥2×40mm
Fire-retardant coating

Remarks: Fireproof coatings need to meet the corresponding fire resistance limit requirements of the building requirements, and the fireproof and anticorrosive coatings should be compatible, and no chemical reaction will occur.

 

Reference System for Steel Structure Painting in Municipal Industry>>
 
Example of a case for repairing painted parts
Protection plan
Road number
thickness(μm)
Railing steel structure repair
Secondary surface sandblasting
Sa2.5 level,Rz55-80μm
Epoxy glass flake anticorrosive paint primer
1
80

Chlorinated Rubber Finish

1
80

Municipal industry painting case

行业解决方案

Municipal industry painting case

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行业解决方案

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