Synthetic or Nitrocellulose? An Industrial Paint Selection Guide

Among single-component industrial paints, the two most widely used groups are synthetic (alkyd) and nitrocellulose paints. Both offer practical and economical solutions, but their drying mechanisms and performance differ.

Synthetic (alkyd) paints

Synthetic paints based on alkyd resin dry by reacting with oxygen in the air. They form a flexible, full-bodied film and are suitable for interior and exterior use. Their drying times are longer than those of nitrocellulose paints. When used together with a zinc phosphate anti-rust primer on steel structures, doors, railings and general metal surfaces, they provide economical and effective protection.

Nitrocellulose paints

Nitrocellulose-based paints dry within minutes as their solvent evaporates. This is a great advantage on mass production lines and in jobs requiring fast delivery. On the other hand, their film is harder and thinner; in harsh exterior conditions they are not as long-lasting as synthetic or two-component systems.

Which one to choose?

If speed is the priority and the part will be used in an enclosed or sheltered environment, nitrocellulose; if long life and outdoor durability are the priority, a synthetic system can be preferred. In harsh conditions such as chemical exposure, high humidity or marine atmospheres, it is necessary to move to epoxy and polyurethane systems.

The industrial paints we produce under our Hilal Boya brand are available in the colors of the RAL color chart.