FBF-74D anti-friction composition (Russian code ФБФ-74Д)

FBF-74D anti-friction composition (Russian code ФБФ-74Д)

ТУ 6-05-1617-88
Road and rail transport
Engine building
Aerospace industry
Chemical industry

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Anti-friction composition is a mixture of polymeric binders and organic solvents filled with fluoroplastic-4D. This composition is used to insulate wires and cover metal products with an anti-friction coating that protects them against atmospheric corrosion.

A coating made of anti-friction composition combines valuable technical properties of fluoropolymers, such as high chemical, weather and tropical resistance, elasticity, heat and frost resistance, as well as good dielectric and anti-friction properties. It provides good adhesion to metals, fiberglass, a number of plastics, wood, rubber, glass and other materials.

Our FBF-74D anti-friction coatings can used as a solid lubricant:

  • in hard-to-get-at spots in equipment at a high specific pressure on the coating;

  • in dusty conditions when conventional lubricants are ineffective;

  • in equipment working in seawater.

Operating temperatures range from -60 °C to +125 °C or up to 250 °C for short periods of time.

The main characteristics of FBF-74D anti-friction composition


Name of the parameter

Norm

Physical characteristics

Opaque liquid ranging from white to light brown in colour. There may be sediment which can be eliminated by shaking.

Mass fraction of solid residue, %

14.5-16.0

Funnel viscosity, s

14-25

Appearance

The surface of the coating is smooth and after drying it should not have a reticulated or honeycomb structure which could be seen with the naked eye. It should not come off a metal surface or crumble either. There may be variation in colour.


Our anti-friction coatings are produced in accordance with technical standards (TU) and the state sanitary norms and regulations.

The standard procedure of coating surfaces with FBF-74D anti-friction composition consists of the following steps:

  • The item should be free of dirt and rust. It should be sandblasted or beadblasted, degreased with gasoline and then with acetone.

  • Composition can be applied by curtain coating, or by using a brush or sprayer.

  • If necessary, streaks can be diluted and rinsed with ethanol.

  • The item is then placed in a drying oven for 60 ± 5 minutes at +55 °C (± 5 °C).

  • If more layers of coating are needed, the item should be cooled to room temperature, after which the second and the following layers are applied as described above.

  • In order to consolidate the coating and give it the final physical and mechanical properties the item is heated at a temperature of +155 ± 5 °C for at least an hour, then cooled to room temperature.

  • The thickness of a single-layer coating is 10-30 µm, depending on the way of application. Composition consumption at a layer thickness of 100-120 µm is about 200 g/m2.