Episurf

Effective: Episurf-Neo is effective on all watch mechanism surfaces and can be applied following all part washing procedures (involving either solvents or detergents).

Easy to Apply: Episurf-Neo is a turnkey solution – simply dip parts for 30 seconds.

Reliable: the self-assembled nature of Episurf-Neo guarantees a homogeneous coating of constant thickness that can be reproduced with ease in a variety of industrial contexts. Application can either be done manually or in a watch washing machine (Horotec, Elma, Greiner, Jema).

Universal: suitable for use on a wide range of watch movement materials, including metals and ceramics.

Invisible: Episurf-Neo binds to the surface as an ultrathin monolayer of constant thickness (<5nm), causing no visual alteration or whitening of parts.

Resistant: The epilame delivers excellent long-term washing cycle resistance (solvents, detergents).

Environmentally friendly: Episurf-Neo is an environmentally responsible product with an Ozone Depletion Potential of 0 and a Global Warming Potential of 2.5. Its atmospheric lifetime is under 10 days, which is fully compliant with international regulations, including those enforced in Switzerland.

Episurf-Neo is non-flammable and non-explosive.

Patented: Episurf-Neo is a patented product (patent numbers WO2008017721 and WO2017144480).

Performance

Episurf-Neo is a high-performance epilame. All watch components can be epilamed, resulting in contact angles in the region of 75-80°.

Oil contact angle on different materials before and after Episurf-Neo treatment

An epilame is considered to be effective when oil contact angles exceed 50° (thin blue line in the chart below).

Oil contact angles on a ruby before and after the application of Episurf-Neo

Episurf-Neo continues to demonstrate outstanding performance even following exposure to washing cycles or specific climatic conditions.

Compatible materials

• Metals, alloys, PVD and  CVD: rhodium, gold, silver, iron, steel (20AP, 304, 316, Durnico), brass, maillechort, , Cu-Be, Ni-P, Ni;
• Ceramics : ruby, sapphire, zirconia, alumina, silica, titania;
• Minerals : glass, silicon, germanium.

Physico-chemical properties

Application process

• Coating a surface with Episurf-Neo really couldn’t be easier – simply dip the watch part for 30 seconds and then dry at room temperature for approximately 60 seconds. The procedure can be performed manually in a container/bottle or in a watch washing machine (Horotec, Elma, Greiner, Jema, etc.).

• Episurf-Neo delivers outstanding protection irrespective of whether or not watch parts are washed prior to application.