The material used for our sinks production is AISI 304 18/10 stainless steel, so-called because it is characterized by a chromium/nickel ratio of:
- 18% of chromium (it increases the hardness and the resistance to the abrasion, giving shine and durability)
- 9% (10% nominal) of nickel (it gives strength and impacts resistance).
Stainless steel is resistant to the corrosion and to rust thanks to its “passive layer”, a thin and transparent protective film in its surface, made up of just few atoms of alloying elements that, once scratches or damaged, it self-protects immediately once in contact with the air and/or water oxygen. Only the stainless steel gives excellent quality and warranty for all the life of the sink. Is our care to remind you that this kind of steel is used in surgical rooms because it is hygienic, rustproof, heat resistant, with an exceptional durability and not porous.

For keeping the stainless-steel sink in excellent conditions over time, are necessary to carry-out few important measures:
(*) the product can be requested contacting our toll-free number 0080010042009 Or by e-mail to: info@cm-spa.it sending your home address for the product dispatch.
To maintain the product original features, we suggest you to carefully read the following precautions:

The base is a regular and daily cleaning of the sink. The surface of our sinks allows a quick cleaning using a normal liquid dish detergent together with a not-abrasive sponge. After have cleaned the sink with circular movements, rinse it with warm water and dry it with a microfiber cloth. An extra step for CM’s composite sinks cleaning, that we recommend once a week, is the use of the common olive oil: in fact, we suggest – after have cleaned the sink regularly as usual – to spread the olive oil in all the sink surface, helping us with a cloth, and let it work all night long. The day after, use the sink as usual. This simple operation will give to your sink a bright aspect and it will bring the sink colours back to the initial state.
Is our care to inform our customers that,
to remove stubborn stains from light coloured composite sinks we recommend to lay – in the bottom of the sink – a solution of ¾ of bleach and ¼ of warm water (is advisable to make this operation during night hours), by rinsing abundantly the day after and drying all the surface carefully with a microfibre cloth.
To remove stubborn stains from dark coloured composite sinks we recommend to use a dish soap and, using a not-abrasive sponge, clean the sink with circular movements. After that, rinse the sink plentifully with warm water and dry its surface with a soft cloth in microfibre material.
To prevent stains and limestone halos we recommend a descaling treatment once a week, by leaving in the sink bottom – for a few hours - a solution of warm water and vinegar. Brush the compound energetically with a soft sponge and take off all the stains; then, rinse plentifully with warm water and dry the surface with a microfibre cloth carefully. Is possible to remove the scale also with some specific descaling anti-limescale agents, leaving them work for few minutes, then rinse and dry carefully as above indicated.