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Captivating colours

Historic protection

Creating what is beautiful and preserving what is valuable with paints by KEIM.

Historical and technical challenges in the renovation of an old building

Those who understand that the past is the key to the present and future are aware of the significance of preserving and renovating historical buildings and protecting monuments. Preserving the architectural legacy of our predecessors for our children is the main concern of committed monument preservation and monument protection, and a great challenge for all those involved in renovating old buildings. The aim of such renovation work consists in the permanent protection and upkeep of monuments or historical buildings, preserving them from damage and other adverse effects. After all, future generations should also be able to enjoy the cultural legacy and historic past of buildings in their authentic form, thanks to this protection. Particularly when it comes to restoring and renovating old buildings, it goes without saying that the materials used must fulfil the highest quality requirements. 

Monument protection and monument protection law

Tip: Owners of buildings, houses, old buildings and monuments or historical buildings can contact the monument protection authority or the regional monument preservation authority to find out about funding programmes, renovation measures and legal aspects of monument preservation, in other words the monument protection law.

"It is my aspiration to always be able to convey to future generations the unchanged splendour and beauty of the artistic creations as eloquent witnesses of the respective era."

(Adolf Wilhelm Keim, pioneer of silicate technology in 1881)

Monument protection – with KEIM Purkristalat, the original silicate paint

The materials used to restore and renovate listed houses and facades must fulfil the highest quality requirements.
 
Developed in 1878 by Adolf Wilhelm Keim, the originator of silicate technology, KEIM Purkristalat has been setting standards for durability, protection and fascinating colour brilliance for 140 years. Used predominantly for protecting historical buildings, KEIM Purkristalat enjoys favoured status among conservators and restorers and is often referred to as "church paint".
 
KEIM Purkristalat derives its unique quality from the perfect balance of its high-grade, exclusively mineral ingredients: inorganic, lightfast pigments, selected minerals as fillers and pure liquid potassium silicate as the binder.
 
But the "original silicate paint" owes its legendary reputation to the innumerable objects all over the world that, for generations, have impressively demonstrated what makes KEIM Purkristalat so unique: luminosity and vitality even after decades – facades that age with dignity.

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Unsurpassed durability – monument protection with KEIM Purkristalat

KEIM Purkristalat, the pure, titanium dioxide-free silicate paint according to DIN 18 363 para. 2.4.1, remains firmly bonded with the substrate of the building facade over decades: the potassium silicate binder penetrates deep into the mineral substrate, where it reacts chemically. Known as "silicification", the result is an insoluble bond between paint and coating substrate, as in old buildings and other monuments. This bond is minerally sound and extremely durable. The purely mineral materials in KEIM Purkristalat are absolutely resistant to aggressive environmental influences, such as acid rain and UV radiation, and thus offer optimum protection. At the same time, the substrate is stabilised by absorbing the potassium silicate binder, thus becoming increasingly resistant. 

Fascinating colour brilliance due to the purely inorganic binder

As well as its legendary durability, KEIM Purkristalat also owes its captivating appearance to the potassium silicate binder. The clear, purely inorganic binder allows light rays to hit the pigment particles on the monument directly, with unhindered light reflections that make it look as if the KEIM Purkristalat coatings are actually shining. Combined with the brilliant luminosity of bright pigments, the natural effect of the mineral matt surface gives KEIM Purkristalat coatings an incomparable appearance  β€“ lively and fascinating.As well as its legendary durability, KEIM Purkristalat also owes its captivating appearance to the potassium silicate binder. The clear, purely inorganic binder allows light rays to hit the pigment particles on the monument directly, with unhindered light reflections that make it look as if the KEIM Purkristalat coatings are actually shining. Combined with the brilliant luminosity of bright pigments, the natural effect of the mineral matt surface gives KEIM Purkristalat coatings an incomparable appearance  β€“ lively and fascinating.

The alternative for monument protection: KEIM Unikristalat

When a historical building is being renovated, monument preservation measures are frequently caught up in the conflict between remaining as true as possible to the original building by using historical materials for reconstruction, and the scope of what is technically feasible. Often enough, this also applies to choosing a suitable coating system for monument protection.
Special substrate characteristics, such as unstable renders or very thin render layers or slurries, may make KEIM Purkristalat unsuitable for the pending renovation. In this case, we recommend KEIM Unikristalat. The purely silicate-bonded, titanium dioxide-free facade paint has special potassium silicate as a binder that undergoes a process known as "fine silicification" to form a low-tension bond with the substrate. As a result, it can be used particularly for renovation work on less strong renders or renders that are relatively thin.

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Are you renovating a monument and still looking for the right products for monument protection? Do you have any questions about our products for your house or building, old building, historical monument or generally about renovating old buildings? We are your partner for monument protection. Send us an e-mail or give us a call!

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