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Protective Bridge Coating is HAPS-Free

Tuesday, October 4, 2011

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Sherwin-Williams has announced the launch of Zinc Clad DOT, an inorganic zinc-rich primer for steel bridges that meets federal content restrictions on hazardous air pollutants (HAPS).

Zinc Clad DOT is highly resistant to corrosion, high heat, humidity and salt fog, while being HAPS-free as supplied, the manufacturer says. The fast-drying coating has a smooth finish that reduces labor and sanding between coats, according to Sherwin-Williams.

 Sherwin-Williams

Sherwin-Williams

The solvent-based, three-component, high solids, low-VOC coating self-heals to resume protection if damaged and provides cathodic/sacrificial protection by the same mechanism as galvanizing.

Moisture, Solvent Barrier

Designed for use over prepared steel, Zinc Clad DOT can be applied in the shop or field to bridges, refineries, drilling rigs and similar structures. The new coating forms an inorganic barrier to moisture and solvents and meets Class B requirements for slip and creep resistance (0.65).

Zinc Clad DOT can be used as a one-coat maintenance coating or a permanent primer for severe corrosive environments and is a qualified product per Northeast Protective Coating Committee (NEPCOAT) requirements for new and existing steel bridges, the manufacturer says. It is also suitable for application at low temperatures or service at high temperatures and/or humidity.

More information:  protective.sherwin-williams.com.

   

Tagged categories: Bridges; Green coatings; Hazardous air pollutants; Primers; Sherwin-Williams; Zinc-rich (inorganic)

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