Natural as wood…

Austrian traditions of wood treatment


Differences between natural and synthetic compounds

Absolutely natural compounds Synthetic compounds
Received from vegetable and fossil mineral sources: oils, resins, waxes, pigments and minerals. Synthesized from crude oil, gas or coal. They do not have analogues in nature. Usually they are alkyd, polyurethane, acrylic, nitro-cellulose and vinyl resins
Absolutely appropriate to humans as they are created by nature and used by humans during millennia. Their physiological action is poorly investigated; usually it is negative or extremely negative. This concerns both polymeric binding substances themselves and their additives being formed as a result of synthesis. The impact takes place at a contact with skin and through respiratory organs.
An odor being possible during drying up and some time after is due to only natural volatile components and that is why those substances are harmless for humans and make no point to be worried about. An odor is due to presence of volatile chemical additives with low molecular weight that render especially harmful action because of their penetrability (volatility) and unnatural-for-human-body structure. Extremely alarming factor.
Natural raw stuff treatment consists in physical cleaning up (filtering, freezing, treatment with natural sorbents or water steam, and so on), boiling-down with purpose of thickening up (polymerization) and receiving an homogeneous compound, natural oxidation under air action. Are received by many-staged chemical synthesis, where different accessory substances appear, which are not removable completely from a product.
A composition is simple and declared openly in order to provide a consumer with absolutely complete information. Usually, a composition is specified just very approximately, on a level of substances types, for example, “alkyd resin, special additives, special formulation, etc.” not providing a consumer with information on its impact on human health.
Adhesion to wood
Natural oils and resins penetrate into a facial wood surface wetting wood cells walls; they are polymerized inside of wood partially remaining on the surface and form an integral whole with it. Gratifying to this, the cover is virtually inseparable from the wood. The reason is that molecules sizes of oils and resins are much smaller than wood cells. What is apply on a wooden surface is usually a ready polymeric resin dissolved in a solvent, which is not able to penetrate into facial wood layer because of big sizes of polymeric chains. Due to this reason, on the wooden surface, there forms a film, which is connected with it just insignificantly.
Wood cells (pores) after treatment remain open; through them, water steams penetrate easily, while liquid water does not wet them because of a very small size of those pores in combination with water-repellent properties of their walls after treatment. Wood pores are closed by the polymeric film, which is situated outside instead of impregnating cells walls. Due to this reason, neither water steams nor liquid water do not penetrate into the wood nor can be removed from the wood without the film destruction.
Application method
They are apply with traditional methods (by a brush, a roller, a spraying gun or by submersion) and also with aid of spatula or a tissue. Unlike synthetic paints, they can require polishing in a process of applying or after it or waiting of soaking in with subsequent excess removing. While applying, corrections can be easily introduced; this will not spoil the surface. They are apply with traditional methods: by a brush, a roller, a spraying gun. In a case of applying the solvent-based paints indoor, a powerful airification is necessary in order to lower the discomfort because of the solvent odor as well as the harm for health. Corrections made during applying will be visible as cover defects (there will be a difference in gloss in tinctures, etc.)
Look after treatment
Wood acquires an expensive look, especially if it is treated with 100% dry compounds with subsequent polishing. Wood natural tinctures get special deepness and succulence. The surface looks harmonically and naturally. There is a rich selection of wood patterns after treatment depending on compound and a method of its applying. Usually the surface has “artificial” cheep look. Comparing to the natural compounds, on the wood, the film is noticeable, which stands out visually as an unnatural one for wood. Pattern versions are a few: there is only the film with different degree of gloss.
Dry remainder and quantity used
Many natural compounds have the dry remainder 100%. The water-based or natural solvents-based compounds have the dry remainder on a usual level 55 to 75%. Due to this reason, the quantity used is lower 2 or 3 times comparing to the same of the synthetic paints. For the water-based and solvents-based compounds the dry remainder calculated on a binding substance makes usually about 12 to 18% and very seldom up to 25-30%. The reason is the high viscosity of a solution of s film-forming polymer. It follows thence the high required paint consumption and the unnecessary expenses on purchasing and transportation of the unneeded “ballast” in their compositions. Also take into consideration the environment contamination and harm for health during applying.
Economical efficiency
The products ÖLIA Naturfarben distinguish with cost, level of which is typical for synthetic paints of medial and higher price segment. Because of economical efficiency on the stage of compound applying, a cost of surface unit treatment is lower than the same of synthetic paints. On the market there are products of various price segments. The paints of medial and higher price segment are comparable on their cost, or those synthetic compounds are more expensive than natural products ÖLIA Naturfarben.
Operation outdoor
Cover elasticity corresponds or exceeds the same of wood and that is why the cover does not crack during natural wood sizes changes under action of moisture, sun or chill.The cover is totally permeable for water steams but impermeable for liquid water. This is a key feature gratifying to which the natural paints do not peel away and serve much longer than synthetic ones. The film has not high elasticity and is impermeable for water steams and that is why it cracks and exfoliates during operation because of natural wood sizes changes under action of warmth and frost as well as at water evaporation from it. The formed cracks promote fast wood destruction.
Operation indoor
They distinguish with a very long service life counting with decades. Harmful substances release inside of premises is impossible inherently, because of total naturalness of a paint. Some time after drying up, in small amounts, there can be released natural substances not rendering any harmful impact on humans by virtue of their natural origin. During operation, substances with low molecular weight are released (conserving agents, coalescents, plasticizing agents, components of binding substances, products of decomposition of the polymeric binding substance, etc.). Those substances poison air in premises continually. That is why any smell of cover is an alarming factor as it is due to synthetic harmful substances.
As a rule, it is enough to process a damaged (or very dirty) field with a sandpaper and locally to apply the compound. Sanding of all the surface is unnecessary. After 6 or 7 years on sunny side, it is enough to apply a new paint layer above an old one; you need not remove the old paint as it does not peel and holds on the surface in a stable manner. Outdoor, usually, a paint starts to peel away in 2-4 years. In the next 1-2 years, wood destruction starts. That is why for the cover renovation, a complete old cover removing is needed.In a case of a local damage of an open-earth cover, its removing is needed from all the surface as in the case of a local removing and subsequent renovation, noticeable traces remain.