As we all know, insulated hollow metal doors are made of galvanized steel. Although Asico use high-quality material, the appearance of the surface is still unable to reach the standard of direct use. Therefore, we need a layer of paint on the surface of the hollow metal door to make the surface flatter and more in line with the style of the project.
By now you may have heard of the cutting edge technology known as "powder coating." It's a new way of applying color that's vastly superior to good old-fashioned painting. Powder coating is applied using a dry powder that is electrostacically charged to stick to the steel doors, and then cured in an oven, to give a smooth, hard finish that is much tougher than conventional paint.
The advantages of using powder layers for steel fire doors are:
Smooth surface of the insulated hollow metal doors:
In addition to making the powder adhere, but also to ensure the powder even distribution, than ordinary paint brush door surface is smoother.
Perfect Durability:
Fire doors are scratch-resistant and thus more durable. Powder coated doors do not rust and have been tested for more than 4,000 hours of salt spray exposure. However, a normal painted fire door. Over time, the paint will crack, the surface will rust, and the door will be extensively damaged. It is difficult to repair manually. If the surface of the hollow metal door is scratched due to an accident, you only need to buy a small bottle of paint to restore the door to its original shape.
Super Adhesion:
The fire door will be cured after powder spraying. Therefore, the paint can be firmly fixed on the surface of the door and will not fall off easily.
High corrosion resistance:
The thickness of the surface coating reaches 35 microns, which is 4-10 times thicker than ordinary paint. The metal underneath is not easily corroded, thereby increasing the durability of the door.
Excellent flexibility:
Unlike paint, the door leaf or frame covered by powder coating will not crack even if it is bent, and the stretch rate can reach 100 percent -800 percent .
Our powder coating is uniformly sprayed in accordance with the RAL color code. For example, insulated hollow metal doors used in hospitals will use white. The school's art room uses bright green, yellow, blue. The factory's escape route fire door is in a conspicuous red.
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