Bridges and Highways
SECTORS C4 – C5
Bridges and Highways
For more than 50 years, our bridge coating systems have been regarded as the industry standard. Maintenance on a bridge is both expensive and disrupts traffic; the system is built for the longest maintenance interval.
TYPICAL LOAD · Road salt, exhaust pollution, constant humidity
RISK ANALYSIS
This is where corrosion comes from.
- Road salt and de-icing chemicals in winter
- Exhaust pollution and acid rain
- Local corrosion at joints, bolts and welds
- Limited maintenance window due to traffic disruption
RECOMMENDED SYSTEM
Coating build-up.
The layer build-up typically used in this sector. Values are indicative; the final system is determined by the site inspection report and the product technical data sheet.
PrimerZinc-rich epoxy
80 µm
Intermediate - MidcoatEpoxy High Solids
200 µm
Finish / TopcoatPolyurethane
80 µm
TOTAL DFT360 µm
CATEGORYC4 – C5
Indicative system example.
APPLICATION AREAS
Where is it used?
Steel bridge girders
Truss and suspension bridge members
Motorway barriers and guardrails
Signs and signposts
Viaduct bearings
POINTS TO NOTE
- Always apply a stripe coat to bolts and weld seams
- A VH (over 25 years) target reduces total cost
- Salt residue should be measured before application
FOR YOUR BRIDGE AND HIGHWAY PROJECT
Free site inspection report →
Let us see the site and choose the system together
Let us assess your existing coating against ISO 12944 and report on the risks and more efficient solutions. The site inspection report is free of charge.
