Cast Mineral (Cast Marble) – Washbasins (Sinks)

Product

Available in many shapes and futuristic designs, the cast-mineral (cast-marble) products are based on a mixture of mineral powders (calcium carbonate, quartz grit, stone dust), sometimes also with fine glass fibres, bound with synthetic resins (such as polyester) – the resulting material is composed of approx. 93% minerals and approx. 7% resin binding agent. This results in a homogenous, bubble-free, mixed liquid mass that is injected or cast into the respective model moulds and that hardens through an irreversible chemical reaction to form a dimensionally stable material.

A 0.5–1 mm thick gel-coat layer gives the visible surface and colouring of the cast-mineral washbasins. This results in a surface that is warm to the touch, smooth and non-porous. The velvet matt or glossy surfaces are achieved through the composition of the gel layer and the subsequent finishing.

This two-step construction paves the way for a broad and individual colour palette for cast-mineral or cast-marble washbasins.

Practical value

Mineral and cast-marble sinks have already been in use for more than 15 years and have proven their worth; the surfaces are impervious to liquids and cosmetics typically used in bathrooms, even in the event of longer exposure over eight or more hours. Drain cleaners, hair-dye and chlorine, however, are not as compatible with the cast-mineral and cast-marble surface finish.

Cleaning and maintenance

The surfaces can be cleaned with typical household cleaning agents, but do not use abrasive substances or products in powder form. Especially suitable are cleaning and polishing agents used for maintaining car paintwork.

Areas that become matt as a result of improper use can be rectified easily with car polish; deeper scratches should be carefully repaired using wet-sanding paper (over 1000 grit). The surface can then be polished up again and protected with car polish.