Polymer roofing

Recommendation points



For giving decorative properties to metal roofs and up to­special polymer is used for additional protection against corrosion­ny coatings applied in factories­what conditions.

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The consumer needs to know that different polymer coatings are characterized by different resistance­resistance to UV radiation (color fastness­bone), to temperature (heat-resistant­bone), to aggressive environments and­human influences and other factors.

Consider the main types of poly­dimensional coatings.

Acrylic

The acrylic coating is a paint and varnish layer that is extremely unstable, it is easy to damage it when installing the roof. It has a heat resistance of up to + 120 ° С, but it fade in the sun for 5 years, moreover, it has an average sta­bone to corrosion and after 2 -3 years of operation begins to peel off­sew. Layer thickness 25 microns. Mi­the minimum processing temperature is –10 ° С. Recommended for use only for temporary structures.

Polyester (polyester enamel)

Coating thickness is 25­-30 microns and therefore resistance to fur­natural impact is not high. More resistant to mechanical loads­polyester sprinkled with quartz sand, however it is­more expensive. In addition, during its transportation, a number of problems arise.­problems associated with the possibility of damage to the bottom layer of metal sheets.

High color polyester­toughness and ductility. Tep­resistance to about + 120 ° С. Covers­polyester can be glossy­and matt (modified­teflon). Suitable for buildings with low maintenance­load.

Plastisol (polyvinyl chloride)

Due to its large thickness (175-200 microns), the plastisol coating is one of the most stable­susceptible to mechanical damage­holes. However its due to the low rate­high durability and low durability­resistance to UV radiation (when heated by direct sunlight, the­more than + 80 ° С, the material ages quickly) it is not recommended to use in the southern regions.

Having a great thickness, the­sol is highly corrosive­resistance, which creates additional­protection in dirty conditions­environment. Ideal­ny material for the manufacture of seam roofs. Its color fastness is significantly lower than polyester (coating after a few years is equal­loses color brightness).

Pural

This is a new type of coating on poly­urethane base, modified­polyamide. The material has good chemical resistance, withstands solar radiation, high temperatures and large su­accurate temperature differences. Minimum temperature at pa­bot with Pural coated sheets, ­15 ° С, maximum – + 120 ° С. Tol­the thickness of the coating is 50 µm. Easily handled as in pro­milling and installation. Has a silky matte finish­ness.

PVF2 (polydifluorionate)

PVF2 is 80% irrigated­nylfluoride, 20% acrylic. By­the covering is durable, withstands frost down to –60 ° С and does not lose its properties at a temperature of + 120 ° С. The most stable­resistant to UV radiation, practically does not fade. It has a rich color palette, it can be with a glossy or matte surface, with a metallic tint. Compared to other software­covering is the most expensive­standing, has a high resistance­to aggressive environments and to fur­natural damage.
The most appropriate application­nyat on the coasts, buildings­chemical industry, etc.

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