Nylon v polyester – which powder coating should you choose?

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Nylon v polyester – which powder coating should you choose?

When it comes to finishing architectural metalwork such as balustrade, handrails, brise soleil and louvres, traditional painting is rapidly being brushed aside by the advance of powder coating. In contrast to conventional liquid paint, powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form and is applied electrostatically as a dry powder. It is then baked at high temperatures which cures the powder and causes it to set solid, creating a smooth, even protective coating. The finish is much tougher and more durable than conventional paint, which is prone to flaking and cracking over time.

 

Painted finishes flake and crack in external conditions
Painted finishes flake and crack in external conditions
Handrails and balustrade in a power coated finish
Powder coated handrails and balustrade have a much smoother and more durable finish

 

With its low-maintenance qualities and smooth appearance, it’s hardly surprising that countless building professionals have cottoned on to the advantages of powder coating. What is less widely appreciated is the fact that there are different types of powder coating which between them offer their own advantages and disadvantages. The most commonly used powder coating across all applications is polyester powder coating. In architectural applications the second most common is nylon powder coating. Both are non-toxic and provide good resistance to corrosion. Both offer the smooth, even and durable surface which is characteristic of all powder coating. However, they also have significant differences which are worth considering. We’ve listed the benefits of each option to enable you to make an informed comparison.

 

POLYESTER POWDER COATING                

 

 

NYLON POWDER COATING         

 

Hopefully this comparison helps you to determine whether polyester or nylon is better for your particular design or project. In summary, the most significant difference is the lower cost and superior colour retention of polyester versus the superior durability of nylon. Neaco would advise that, on balance, nylon powder coating provides a more valuable range of benefits overall. However, all powder coatings give metalwork greater durability and comfort to touch and offer compelling advantages over conventional painted finishes.