Protective: Bridges

Millions of square metres of steel- and concrete bridges protected by Jotun since the 70's
Concrete and steel in bridges may be exposed to highly corrosive environment and dynamic stresses.

 

 

To withstand such heavy exposure coating systems must provide:

- Good corrosion resistance
- Extremely good adhesion
- Excellent resistance to atmospheric exposure up to C5-M (ISO 12944)
- Excellent resistance to immersion Im 1, 2 and 3 (ISO 12944)
- Excellent resistance to mechanical and thermal stress

 

Typical recommended system.

Systems may vary, depending of objects.

Steel substrates

All structural steel, pipes and steel components:

 

Interior, C1/C2 - Very Low/Low

 

DFT, µm

     

    Penguard Express ZP
    Hardtop XP

 

80
80

 

Exterior, C3 - Medium

 

DFT, µm

     

    Jotamastic 80
    Jotamastic 80
    Hardtop XP

 

75
75
50

 

Exterior, C4 - High

 

DFT, µm

     

    Barrier 80
    Penguard Express
    Hardtop XP

 

50
150
50

 

Exterior, C5-I/C5-M - Very High
DFT, µm

     

    Resist 78
    Penguard Express
    Hardtop Optima

 

75
200
50

 

All steel components:

 

Immersed, Im 1-3 - Water or Soil

 

DFT, µm

     

    Jotamastic 87 GF
    Jotamastic 87 GF

 

350
350

 

Concrete substrates

C2 - Low

 

DFT, µm

     

    Penguard Clear Sealer
    Penguard Clear Sealer
    Hardtop XP

 

50
50
60

 

C3 - Medium

 

DFT, µm

     

    Penguard Clear Sealer
    Penguard Midcoat
    Hardtop XP

 

50
125
60

 

C4 - High

 

DFT, µm

     

    Penguard Clear Sealer
    Jotacote Universal
    Hardtop XP

 

50
200
60

 

C5-I/C5-M - Very High

 

DFT, µm

     

    Penguard Clear Sealer
    Jotacote Universal
    Jotacote Universal
    Hardtop XP

 

50
125
125
60

 

Immersed, Im 1-3 - Water or Soil

 

DFT, µm

     

    Chemclear
    Baltoflake
    Baltoflake

 

200
750
750