Note: This post is part of a larger series on generic coating types. Click the button at the bottom of this post to download the entire guide.
Overview:
Polyurethanes offer excellent gloss and color characteristics. They are often used to give surfaces a smooth, thin film build that will provide abrasion resistance, good corrosion control and resistance to chemical exposure. They are versatile coatings that can be specifically formulated to cope with a number of different circumstances.
Benefits:
- High gloss finish
- Good color retention
- Customizable based on needs
Drawbacks:
- Short pot life
- Contain potentially harmful isocyanates
- Will likely require a multiple component system
Common Applications:
Common applications for polyurethanes include use as topcoats for the protection of steel and concrete substrates. This can include on bridges, storage tanks, barges, refineries, petrochemical plants, etc.
Notes:
Polyurethanes are often used to achieve a smooth, thin film build over the top of a zinc primer and epoxy intermediate coat.
