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Bridges are fully exposed to the prevailing weather conditions and temperature variations.

Depending on their location they are also subjected to coastal salt and/or industrial pollution, bird guano, blowing sand, condensation, movement due to traffic and wind loading etc. Maintenance is usually both difficult and expensive and it is important that the coating system chosen is capable of withstanding the exposure conditions and of providing a long service life to first maintenance.

Sigma Protective Coatings have been used on a wide range of steel bridges around the world. Systems are available for both new construction and maintenance. These systems are highly durable and provide extended colour and gloss retention. There are also fast curing options to maximise productivity. The system is recommended by SigmaKalon meet the performance requirements of the latest international standards such as ISO 12944.

> Case Study Millau bridge

Below is a selection of Sigma Protective Coatings product ranges suitable for use on bridges:
  • SigmaCover
  • SigmaDur
  • SigmaFast
  • SigmaShield
  • Sigma Vikote
  • SigmaZinc