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DryFilm2018-04-23T13:47:40+02:00

General

Anti-Friction Coatings are lubricants that are applied to a surface as coating. They form firmly adhering dry lubrication films there with high effectiveness.
They consist of solid lubricants and organic or inorganic binders as well as a solvent. As well as the main components, they can contain functional additives such as corrosion inhibitors or ultraviolet additives. MoS2, PTFE or other synthetic lubricants are the most frequently used ones for solid applications.

Anti-Friction Coatings are used in all areas of industry. Their importance is constantly growing due to increasing automation in manufacturing and assembly. It is not uncommon that the use of anti-friction coatings replaces various lubrication processes in a workflow. For example, parts for installation can be transported and protected against corrosion and soiling with an anti-friction coating. The anti-friction coating used then replaces a liquid or solid assembly lubricant or a mechanical assembly aid for the assembly.

Anti-friction coatings are used with increasingly frequency for supporting the running-in processes of machine elements. They provide additional protection against wear, have a defined friction coefficient and make the entire process more predictable and more reliable.

In many cases, anti-friction coatings make lifetime lubrication possible and enable simpler designs in comparison with conventional lubrication.

Advantages

Thanks to their versatility, easy handling and application, anti-friction coatings are used in numerous manufacturing processes in almost all industrial areas. The applications include sealing lips, locking systems and cylinders, springs, camshafts, gearboxes, spindles, sliding bearings, O-rings, door, window and boot seals, valves, hinges, switches, screws, bolts, chain elements, sintered metal sleeves, bearing shells, linear guides, toothed racks, valves, carburettors, pumps, nuts, screws and bolts, pistons and many others.

Anti-friction coatings provide:

– Dry and clean lubrication
– Reduction in friction and wear
– Constant and defined frictional coefficients with very low scatter
– Use under extreme conditions such as high/low temperatures
– Vacuum and dust are possible
– Lifetime lubrication possible
– Simplifying assembly and dismantling
– Minimising the maintenance effort
– Replacement, support or supplementing of oil or grease lubrication
– Improved running-in of machine elements
– Additional emergency running characteristics
– Suitable for almost all materials such as metals, plastics, elastomers and wood
– Very good corrosion protection
– Long shelf life
– Resistant to dirt
– Mineral oil and chemical resistant coatings possible
– Clean in application – no dirt from rubbing points and environment
– Reduction in fretting corrosion
– Very thin coatings possible
– High coverage
– In part, can be painted over
– Avoidance of stick-slip effects
– Noise reduction

Function

Anti-Friction Coatings compensate for unevenness of the surface and form a smooth film. As a result, the friction coefficient itself is optimised for high loads and adverse conditions. They ensure dry and clean lubrication and can make the use of greases or oils superfluous under certain circumstances. However, they can also be used in combination with these. In these cases, anti-friction coatings support the lubrication in border zones and ensure emergency running characteristics.

After the drying and hardening, the anti-friction coatings form a dry film that is only a few micrometres thick that bonds firmly to the base. This film acts as friction and wear reducing separation and lubrication layer between the friction partners.

Anti-friction coatings are particularly effective in boundary and mixed friction states. Anti-friction coatings can also effectively support hydrodynamic lubrication during running-in and ensure emergency running lubrication.

Anti-friction coatings can be applied using conventional painting techniques such as spraying, dip spinning or brushing. Anti-friction coatings can also be applied using spraying drums or centrifuges and using electrostatic or automatic spraying systems or using printing or roller coating processes.

Products

With the anti-friction coatings in the Molykote® range and the in-house development of the OSIXO® series, Costenoble provides a comprehensive range of high quality coatings for many applications. These have been used, partly for decades, in almost all areas of industrial production. They are impressive due to reliability and quality. They provide wide possibilities for design and process optimisation.

MOLYKOTE® Anti-Friction Coatings

The Anti-Friction Coatings in the Molykote® series are given high priority amongst the lubricants from the Dow Corning® company. The focus is on load-resistant and reliable anti-friction coatings with MoS2 as solid lubricant. Most of the Molykote® Anti-Friction Coatings that have been established for decades come from this area. However, products with other solid lubricants are also available in the Molykote® series. Dow Corning® with its Molykote® Anti-Friction Coatings provides a comprehensive range of high quality anti-friction coatings for many applications.

ProductLubricantBinderSolvent
MOLYKOTE® D-321RMoS2TitanatMOLYKOTE® L-13
MOLYKOTE® 3402-C LFMoS2Special productMOLYKOTE® L-13
MOLYKOTE® D-3484MoS2Phenol resinMOLYKOTE® L-13
MOLYKOTE® 3400A LF / AeroMoS2Epoxy resinMOLYKOTE® L-13
MOLYKOTE® 106MoS2Epoxy resinMOLYKOTE® L-13
MOLYKOTE® D-7409 / D-7620MoS2Polyamide-imideMOLYKOTE® 7415
MOLYKOTE® D-106MoS2Epoxy resinWater
MOLYKOTE® 7400MoS2AcrylateWater
MOLYKOTE® PTFE-N UVPTFEAcrylateMOLYKOTE® L-13
MOLYKOTE® D-708PTFEEpoxy resinMOLYKOTE® L-13
MOLYKOTE® D-96 / D-9610PTFEPUWater
MOLYKOTE® D-7405Synthetic solid lubricantPolyamide-imideMOLYKOTE® 7415
MOLYKOTE® D-10 NMP freeGraphitePolyamide-imideMOLYKOTE® 7415
MOLYKOTE® D-88Special pigmentsPolyamide-imideMOLYKOTE® 7415

DryFilm® Anti-Friction Coatings

DryFilm® is a series of anti-friction coatings based on polytetrafluoroethylene (PTFE). They are dispersed in various concentrations in special solvents or water.
The products in the DryFilm® series are chemically inert and this resistant to aggressive chemicals and oxygen. They are thermally very stable, have low friction coefficients and good non-stick properties.

DryFilm® is most effective in applications with low velocities and low loads. It can also be used as an additive for various products such as paints, greases, resins and paper coatings. DryFilm® is used here, amongst other things, for improving lubricating properties and delaying fouling-effects.

They are suitable for numerous applications due to their outstanding product properties and working temperatures of over 300 °C. Also for special applications such as the coating of industrial knives and razor blades. DryFilm® products are also used as release agents in rubber and plastic mould processes. Their great stability and long life ensure optimum results and high efficiency.

ProductSolid lubricantPercentageSolvent
DryFilm® RAPTFE15 %Decafluorpentan
DryFilm® RA/IPAPTFE25 %Isopropanol
DryFilm® LXE/IPAPTFE10 %Isopropanol
DryFilm® 2000/IPAPTFE20 %Isopropanol
DryFilm® RA/WPTFE20 %Water

DryFilm® Anti-Friction Coatings

The products of the OSIXO® Anti-Friction-Coatings supplement the existing product series from the manufacturers DuPont® and Dow Corning®. Stability even under high loads and a long lifetime ensure efficient usage. OSIXO® products are suitable for numerous applications and have proved themselves in numerous applications.

The product series consists of PTFE dispersions on a water or alcohol basis. The hardened-out slide coating is not flammable, not combustible and provides reliable, constant friction coefficients. They are suitable, among other things, for use in environments where heavy soiling cannot be excluded.

OSIXO® products ensure a sustainable protection against corrosion by the use of special additives. Surfaces that have already been attacked can also smoothed out again by the use of OSIXO® products.

Weitere Informationen / Downloads

> AFC-Broschüre (PDF)