Wood preservative

Wood varnishes, stains and paints

Wood varnishes are transparent or opaque colored, often glossy, sometimes extra matte coatings applied to a wood surface after sanding and priming or without pretreatment to protect and/or beautify it.

Glazes, on the other hand, are always transparent or semi-transparent and are applied to wood, especially in very thin, deeply penetrating layers, to emphasize and preserve the grain and structure of the wood.

Wood paints are also opaque and, unlike varnishes, tend to be formulated supercritically (PVK). Like varnishes, they form a film on the wood surface, unlike stains, which penetrate into the wood without forming a film.

Pigments primarily impart color, gloss, opacity and appearance to coatings and glazes. What is less noticed are the functions that pigments perform in many formulations. They protect against UV light and heat by scattering and reflecting light. Together with fillers, they can improve the mechanical stability of the coating and thus, proportionately, its resistance and durability.

Gloss, colour and function for varnishes and glazes

In the manufacture of wood coatings and glazes, the main issues in connection with pigments or liquid pigment pastes are the reproducibility and durability of the color result. Glazes are often finished with finely ground, transparent iron oxides. Of course, rheological properties, viscosity, coverage at low film thickness and high yield also play a role.

The micronized Bayferrox® and Colortherm® iron oxides and chromium oxides from Lanxess, titanium dioxides from Kronos and Pretiox TiO₂ from Precheza are the benchmark raw materials in this respect. This also applies to the pigment preparations of the Euronox® and Euronyl® series that we produce ourselves. Here, each pigment is carefully dispersed and stabilized individually while maintaining good compatibility.

Quality assurance

Through development in our paint and coatings laboratory, as well as close specification and elaborate quality assurance, we ensure that our customers are satisfied with the required properties.

In coatings and glazes, too, the properties of pigments go beyond those of pure coloring. Inorganic pigments, in particular, are an essential part of the UV and weathering protection of binders through reflection and absorption of light waves. If necessary, even in the case of dark color shades, increased reflection of IR radiation can reduce the surface temperature when exposed to sunlight.