Configurator
Configurator

Colours, materials
and finishes

Mailbox systems in the colour of your choice.

Create your customised mailbox system quickly and easily with our configurator!

KNOBLOCH Briefkastenanlage mit 7 senkrechten Briefkästen, Klingeltastern und Video-Sprechanlage

RAL standard colours to try out

Anthrazit grey
RAL 7016
White aluminium
RAL 9006
Grey aluminium
RAL 9007
Traffic white
RAL 9016
Iron glimmer
DB 703
Quarz grey
RAL 7039
Light grey
RAL 7035
Chocolate brown
RAL 8017
Moos green
RAL 6005
Deep black
RAL 9005
Pure white
RAL 9010
EStainless steel
brushed

Premium materials

Brushed stainless steel

We generally use brushed V2A for stainless steel products because this type of steel offers sufficient corrosion protection for most applications. V4A stainless steel is recommended if the mailbox system is located in maritime areas, regions with high industrial pollution, or areas with heavy air traffic, as it is then continuously exposed to higher humidity, salty air, and increased emissions – three factors that significantly increase the risk of corrosion.

Mirror polished stainless steel

Mirror-polished stainless steel creates a special highlight in the entrance area. As standard, we use mirror-polished V2A stainless steel. Mirror polishing is also available for V4A stainless steel upon request.

Digitale Namensschilder in einer Briefkastenanlage von KNOBLOCH mit Low Noice Klappendämpfung

Sheet steel with zinc-magnesium alloy

At KNOBLOCH, the technical term ‘galvanised sheet steel’ generally refers to sheet steel with a zinc-magnesium alloy coating on both sides. The alloy, applied using the hot-dip process, contains up to eight percent magnesium and aluminium in addition to zinc. The magnesium content ensures a self-regenerating effect, which especially protects cut edges and minimises paint infiltration. The chosen chemical composition of the coating also contributes to increased corrosion resistance.

Aluminium

Aluminium offers increased corrosion protection against environmental influences compared to galvanised sheet steel. Even at room temperature, this light metal quickly reacts with air and water at cut edges to form aluminium oxide, which creates a thin layer impermeable to air and water (passivation), thereby protecting against corrosion. We either powder-coat or anodise aluminium. Some manufacturing processes, such as engraving, may require the use of aluminium, as may certain modules.

Powder coating

Powder coating is always preceded by pre-treatment. Here, iron phosphating (sheet steel) or chrome-free passivation (aluminium) is applied in addition to the existing corrosion protection of the material. This makes these materials even more resistant to oxidation. After degreasing and applying a primer, the actual powder coating (plastic coating) is applied, which not only provides the desired colour, but also acts as further corrosion protection.

In powder coating, the parts are painted manually after pre-treatment. The process begins with the application of electrostatically charged polyester powder by hand spray gun at a thickness of 70 to 100 micrometres to the raw parts, which we then bake at 160 to 200° Celsius. The result is a continuous, weatherproof and thermostable surface.

In combination with high-precision control technology, this type of surface treatment is not only the most economical, but also the most environmentally friendly option. It uses pollutant-free solvents, allows the recovery and recycling of unused powder, has efficiency levels in the region of 99% and is also characterised by short colour change times.

We use colours from the RAL palette as standard. We can also paint colours from other standards such as British Standard (BS), the Natural Colour System (NCS) and effect colours such as textured paints and pearl effect paints without any problems (usually for a small surcharge). If absolute colour consistency with existing components on site is required, the colour used on site must be used, as deviations can occur even with different batches from the same supplier. In these cases, it is preferable for the customer to provide the colour powder, and we will support them with colour samples for comparison on site.

Available in 22 standard colours

Available in 22 standard colours

Smooth (GA) /
Satin gloss (SG)

RAL 7016 GA/SG
Anthracite Grey

RAL 9006 GA/SG
Weißaluminium

RAL 9007 GA/SG
Grey Aluminium

RAL 9016 GA/SG
Traffic White

DB 703 GA/SG
Iron Glimmer

RAL 7039 GA/SG
Quarzgrau

RAL 7035 GA/SG
Light Gray

RAL 8017 GA/SG
Chocolate Brown

RAL 6005 GA/SG
Moss Green

RAL 9005 GA/SG
Deep black

RAL 9010 GA/SG
Pure White

Smooth (GA) /
Matt (MA)

RAL 7016 GA/MA
Anthracite Grey

RAL 9006 GA/MA
Weißaluminium

RAL 9007 GA/MA
Grey Aluminium

RAL 9016 GA/MA
Traffic White

DB 703 GA/MA
Iron Glimmer

Fine structure (FS) /
Matt (MA)

RAL 7016 FS/MA
Anthracite Grey

RAL 9006 FS/MA
Weißaluminium

RAL 9007 FS/MA
Grey Aluminium

RAL 9016 FS/MA
Traffic White

DB 703 FS/MA
Iron Glimmer

RAL 8028 FS/MA
Terra brown

Gloss levels and surface textures

As standard, we offer our polyester coatings in silk gloss (SG) or matt (MA) quality as well as with smooth (GA) and fine structure (FS) surface textures. The corresponding gloss levels (at a gloss angle of 60°, with measuring geometry according to EN ISO 2813) are

  • smooth glossy: 90° +/- 10°
  • smooth semi-gloss: 75° +/- 10°
  • smooth matt: 25° +/- 5°
  • Fine structure, matt: 7° +/- 2°

RAL colours of your choice

In addition to our standard colours, we also offer the option of RAL colours of your choice for a small additional charge. This includes all colours from the standard RAL Classic range, with a smooth surface texture (GA) and a satin gloss (SG) quality.

Special colors

This term refers to all colours that are not included in the RAL Classic range.

Tipp!

Anti-graffiti surface

Our recommendation for protection against graffiti! This is not an additional coating, but an additional component incorporated into the polyester paint that makes it easier to wash off and remove spray paint.

Anodised finishes for mailbox systems

You have probably heard this from us before: the entrance to a house is the calling card of its residents or owners. Should it be unobtrusively functional, timelessly elegant, confidently dignified – or, with a touch of modesty, a little extravagant, for example in architectural bronze, with mirror polish, chrome effects, brass or rust look?

We collaborate with specialists in the surface finishing sector to achieve this. Our partners include the companies Rimex and Enviral. We can offer all our base materials (stainless steel, aluminium, galvanised sheet steel) with a surface finish of your choice. This is not only about the visual appearance mentioned above: anti-fingerprint coatings are also possible, as well as haptic finishes with patterned rolled surfaces, and stainless steel can be coloured on request. In many cases, effect coatings are also a sensible alternative to PVD coatings.

The picture shows one of many possibilities using the example of an architect’s house in Berlin, which was promptly honoured with the ‘Most Beautiful Garden 2021’ design award. An excerpt from the laudation reads: ‘This unique powder coating picks up on the colour tone of the striking copper roof and conveys the impression of weathered copper.’ The surface treatment in this case comes from Enviral.

Available surface finishes

EV1 (C0)
Natural

EV2
Nickelsilver

EV3
Gold

C31
Stainless Steel Colored

C32
Light bronze

C33
Middle bronze

C32
Dark bronze

C35
Black

Effect lacquers and surface finishes for mailbox systems

The entrance to a house is the calling card of its residents or owners – you’ve probably heard that from us before. Should it be unobtrusively functional, timelessly elegant, self-confidently dignified – or, in all modesty, a little extravagant, for example in architectural bronze, with mirror polish, chrome effects, brass or rust look?

We work together with specialists in the surface finishing sector to achieve this. Our partners include the companies Rimex and Enviral. We can offer all our basic materials (stainless steel, aluminium, galvanised sheet steel) with a surface finish of your choice. This is not just about the aforementioned visual appearance: anti-fingerprint coating is just as possible as haptic finishing with pattern-rolled surfaces and stainless steel can also be coloured on request. In many cases, effect coatings are also a sensible alternative to PVD coatings.

The picture shows one of many possibilities using the example of an architect’s house in Berlin, which was promptly honoured with the ‘Most Beautiful Garden 2021’ design award. An excerpt from the laudation: ‘This unique powder coating picks up on the colour tone of the striking copper roof and conveys the impression of weathered copper.’ The surface treatment in this case comes from Enviral.