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New Developments in Fluorourthane Coatings for Bridges

New Developments in Fluorourthane Coatings for Bridges
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Fluorourethane coatings based on FEVE, fluoroethylene vinyl ether chemistry, have been used globally for over 30 years. This technology has a proven record of outstanding performance against exposure to the elements and has been used in applications ranging from aerospace to architectural structures. Recently, the bridge market has taken notice of this high performance, especially in harsh marine environments. Resistance to degradation by UV light is important to the longevity of a bridge structure, but it could be argued that corrosion resistance is the key performance indicator for a protective topcoat. 

Product Number: 41216-995-SG
Author: Robert Parker, Kristen Blankenship
Publication Date: 2016
Industries: Highways & Bridges , Corrosion Monitoring and Control , Coatings
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$20.00
$20.00

Fluorourethane coatings based on FEVE, fluoroethylene vinyl ether chemistry, have been used globally for over 30 years. This technology has a proven record of outstanding performance against exposure to the elements and has been used in applications ranging from aerospace to architectural structures. Recently, the bridge market has taken notice of this high performance, especially in harsh marine environments. Resistance to degradation by UV light is important to the longevity of a bridge structure, but it could be argued that corrosion resistance is the key performance indicator for a protective topcoat. This paper will present the latest performance data on fluorourethane- based coating systems. NTPEP Test No. 3, Cyclic Weathering Resistance (ASTM D5894) and NTPEP Test No. 2, Salt Fog Resistance (ASTM B117) data will be given on the following coating systems: 3coat systems (zinc rich primer/epoxy mid-coat/fluorourethane topcoat) and 2- coat systems (zinc rich primer/fluorourethane topcoat). Comparison of performance between fluorourethane systems and both traditional polyurethane systems as well as polysiloxane systems will also be presented. Xenon Arc and QUV-A accelerated weathering gloss retention will be shown. This data in combination with an exploration of real world case studies of bridge structures using fluorourethane protective topcoats, will illustrate how using fluorourethane protective topcoats can expand the design space. The characteristic high gloss retention exhibited by fluorourethane coatings allows for the use of bright vivid colors that maintain their brilliance for the lifetime of the structure.

Fluorourethane coatings based on FEVE, fluoroethylene vinyl ether chemistry, have been used globally for over 30 years. This technology has a proven record of outstanding performance against exposure to the elements and has been used in applications ranging from aerospace to architectural structures. Recently, the bridge market has taken notice of this high performance, especially in harsh marine environments. Resistance to degradation by UV light is important to the longevity of a bridge structure, but it could be argued that corrosion resistance is the key performance indicator for a protective topcoat. This paper will present the latest performance data on fluorourethane- based coating systems. NTPEP Test No. 3, Cyclic Weathering Resistance (ASTM D5894) and NTPEP Test No. 2, Salt Fog Resistance (ASTM B117) data will be given on the following coating systems: 3coat systems (zinc rich primer/epoxy mid-coat/fluorourethane topcoat) and 2- coat systems (zinc rich primer/fluorourethane topcoat). Comparison of performance between fluorourethane systems and both traditional polyurethane systems as well as polysiloxane systems will also be presented. Xenon Arc and QUV-A accelerated weathering gloss retention will be shown. This data in combination with an exploration of real world case studies of bridge structures using fluorourethane protective topcoats, will illustrate how using fluorourethane protective topcoats can expand the design space. The characteristic high gloss retention exhibited by fluorourethane coatings allows for the use of bright vivid colors that maintain their brilliance for the lifetime of the structure.

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