Types of metal tile coatings

The durability and appearance of a metal tile roof depends primarily on what kind of coating it is covered with. Types of metal tile coatings are different, and they differ not only in strength and service life, but also in color fastness.

• Polyester (PE)

The basis of this coating is polyester. The material has long been used in the production of metal tiles, has a glossy appearance and is characterized by plasticity and high color stability.

Metal roofing polyester shiny, smooth, relatively inexpensive. It is highly resistant to corrosion and UV rays, which means it will not fade for a long time under the sun. However, in thin layers (up to 30 microns), it is damaged by light mechanical stress, for example, when snow layers leave the roof. Do not use polyester where weather conditions are unfavorable.

• Matte polyester (PEMA)

Among types of metal roofing matte polyester looks the most attractive. It is a polyester with Teflon added to give it a matte finish. In addition to resistance to UV rays, it also has increased resistance to mechanical damage due to the increased coating thickness (35 microns). Even in difficult weather conditions, it will last a long time.

• Pural (PU)

Pural coated metal tile It is based on polyurethane, the molecules of which are modified with polyamide. The thickness of the coating is 50 microns, which gives it additional mechanical stability. Ultraviolet light and even chemically aggressive substances, such as acids that precipitate in areas with polluted air, do not change the properties pural coated metal tiles. It serves for a long time without changing the color and mechanical resistance in any conditions.

The surface of such a metal tile is silky to the touch and matte in appearance. Due to the properties of the pural, the roof with such a coating is easy to handle and install. Temperatures at which it retains its properties - from minus 150 to plus 1200 degrees Celsius.

• Plastisol (PVC)

Plastisol 200 - metal roofing from polymer 200 microns thick. Differs in volumetric embossing, imitating leather or tree bark. It was developed specifically for difficult climatic conditions, including industrial areas with a high level of environmental pollution.

Plastisol 100 has half the thickness and is used mainly indoors. It is also produced with a coating on both sides and is used for the manufacture of weirs.

• Polydifluorite (PVDF, PVDF2)

Of all kinds metal roofing this is the most suitable for the design of facades. It consists of a mixture of polyvinyl fluoride and acrylic in a ratio of 4:1. Contains high quality pigments for high gloss and long lasting UV resistant color.

The polymer is quite hard, has hydrophobic properties, which allows it to “repel” dirt, while being quite plastic. It can be either matte or glossy. Metal roofing can be shiny like metal. To do this, it is varnished on top with the addition of a special dye. Resistant to weathering and corrosion.

Comparison of characteristics of metal tile coatings