Polyurethane corrosion protection – Lasting protection for valuable steel structures

High-quality polyurethane coatings for heavy corrosion protection (Class C4 to C5-M) significantly improve the longevity and safety of steel structures. For light corrosion protection please refer to the Industrial Coatings section.

For heavy corrosion protection we offer raw materials for a variety of systems:

Applications	Technologies
	Waterborne Systems		Solventbased and Solventfree Systems
	2K-PUR	1K-PUR	2K-PUR	1K MC*)	Chlorinated Rubber	Poly- aspartics
Pipeline Construction exterior pipelines interior pipelines (oil, gas, water, chemicals)
Marine Coatings Ships Offshore platforms	in some cases
Structural Engineering Industrial construction Conveyors Bridges, cranes, power pylons heavy steal structures
Hydraulic Engineering Habour structures, steel pile walls, watergates, docks	in some cases		in some cases			in some cases

*) moisture curing

How to reduce VOC and increase the productivity in corrosion protection systems?
New developments for such coating systems are focused on two systems. Firstly, so-called polyaspartic acid esters (polyaspartics), which allow a higher film thickness and dry quickly. This simplifies and speeds up the application of high-quality coating systems.

Secondly, waterborne two-component polyurethane raw materials, which are noted for their excellent coating properties and very low VOC content. They are becoming increasingly popular, not only as a topcoat but also as a primer applied direct to metal. In most cases, polyacrylate-based core/shell dispersions (Bayhydrol A) and low-viscosity aliphatic hydrophobic polyisocyanates (Desmodur N) are used for such corrosion protection systems.

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