Materials
We offer you an extensive range of attractively designed door and window hardware made of aluminium, brass, polyamide or stainless steel. Read more about the individual materials on this page.
Aluminium
HOPPE brand aluminium hardware is manufactured using high quality, corrosion-resistant primary alloys.
Aluminium
The surface of our aluminium fittings is protected by either anodising or powder coating. Anodising consists of a controlled, electrically induced oxidation process with the aid of sulphuric acid, which causes the base material to bond with oxygen and to grow a protective surface layer, the so-called oxide film. This film protects the products against detrimental influences such as hand perspiration, humidity and light mechanical stress. In powder coating, the coating powder is applied to the aluminium surface by means of an electrostatic process. It is then heated to a temperature of 150°-200°C causing the paint particles to melt to a film of paint in a chemical cross-linking reaction. CareSurface tarnishing or dirt may appear on some product surfaces over a period of time and some can be removed using a clean cloth with a mild non acidic soap and water. Dry using the clean cloth and repeat until marks have gone.
Important: Do not immerse product in water as this will affect the performance of the lever long term.
In order to maintain the quality of the surface finish, please carry out these checks on a periodic basis.
Under no circumstances should aerosol sprays be used as this will damage the surface finish. Also, carbon steel brushes and steel wool should be avoided at all times during a maintenance process. |  Aluminium handle set on rose |
Stainless steel
HOPPE brand stainless steel hardware is manufactured from chrome-nickel steel (steel no. 1.4301 to DIN).
Stainless steel
HOPPE brand stainless steel hardware is manufactured from chrome-nickel steel (steel no. 1.4301 to DIN). Thanks to its longevity, its harmlessness to the environment and to health as well as its corrosion acid-, and abrasion resistance, it is used in the food industry as well as the medical and domestic sectors besides the building trade. Stainless steel is also called corrosion-resistant because the alloy components of chromium and nickel develop an invisible passivation layer.
CareSurface tarnishing or dirt may appear on some product surfaces over a period of time and some can be removed using a clean cloth with a mild non acidic soap and water.. Dry using the clean cloth and repeat until marks have gone.
Important: Do not immerse product in water as this will affect the performance of the lever long term.
In order to maintain the quality of the surface finish, please carry out these checks on a periodic basis.
Under no circumstances should aerosol sprays be used as this will damage the surface finish. Also, carbon steel brushes and steel wool should be avoided at all times during a maintenance process.
Resista®Stainless steel hardware is also available with our Resista® surface guarantee. |  Stainless steel handle set on rose |
Polyamide Nylon
HOPPE brand polyamide hardware is manufactured using high quality polyamide (PA) which not only has enhanced mechanical properties but is also impact and wear resistant.
Polyamide Nylon
HOPPE brand polyamide hardware is manufactured using high quality polyamide (PA) which not only has enhanced mechanical properties but is also impact and wear resistant. Combined with its anti-static properties, weathering and chemical resistance makes it a favourite material for engineering applications, such as hardware. If necessary, HOPPE polyamide products are additionally UV-stabilised.
CareSurface tarnishing or dirt may appear on some product surfaces over a period of time and some can be removed using a clean cloth with a mild non acidic soap and water. Dry using the clean cloth and repeat until marks have gone.
Important: Do not immerse product in water as this will affect the performance of the lever long term.
In order to maintain the quality of the surface finish, please carry out these checks on a periodic basis.
Under no circumstances should aerosol sprays be used as this will damage the surface finish. Also, carbon steel brushes and steel wool should be avoided at all times during a maintenance process. |  Polyamide handle set on rose |
Brass
HOPPE brand brass hardware is made of high quality brass alloys. The surface is protected either by a transparent lacquer of elevated adhesive strength and resistance to solvents and chemicals, by electro plating such as chrome-plating or by a special vacuum coating process.
CareSurface tarnishing or dirt may appear on some product surfaces over a period of time and some can be removed using a clean cloth with a mild non acidic soap and water. Dry using the clean cloth and repeat until marks have gone.
Resista®Brass hardware is also available with our Resista® surface-guarantee. |  Brass handle set on rose |