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What are builder’s profiles made of?

What are builder’s profiles made of?

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Galvanised steel

Galvanising steel Builders’ profiles are usually made from galvanised steel, which is steel that has a protective zinc coating preventing it from rusting.
Galvanised steel The most common way of galvanising steel is ‘hot-dip galvanisation’, whereby steel parts are submerged in a bath of molten zinc. The zinc then binds to the steel.
Wall building The main advantage of using galvanised steel is that it is corrosion resistant. This is important when using builder’s profiles as they are often used and left outdoors.

Powder coatings

Powder coatings Some builder’s profiles are made with a powdered grey coating.

Nylon powder coatings are a non-toxic, odourless coating which is very chemical and abrasion resistant. It is used to give colour to many steel objects such as bicycles, outdoor benches and hand rails.

Spraying a powder coating Powder coatings are created by using free flowing dry powder which covers and sticks to pretreated metal.
Powder coated hand rail

Advantages of using powder coatings

  • It is easy to apply powder coatings thickly in order to create a smooth and even surface.
  • Some coatings can give an ‘orange peel’ effect which can hide metal defects caused in manufacturing.
  • They are corrosion and weather-resistant, making them ideal for outdoor use.
Orange peeled texture

Disadvantages of using powder coatings

  • It is difficult to apply a smooth thin layer
  • The coating can become more ‘orange peel’ in appearance, the thinner the layer is.

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