A wood coating composition comprising: an acrylic or polyurethane or alkid resin, or a combination thereof; a water-based solvent comprising water and a polyalcohol, or an organic solvent selected among ketones, esters, aromatic hydrocarbons as toluene, alone or in a combination; wherein the resin has a weight ratio set between 10% and 80% or between the 20% the 70%, respectively with an or the other type of solvent. The compositions include a UV-protection additive comprising polyphenols, in particular a mixture of tannins extracted from such a wood as a Fagaceae, Mimosaceae or Rosaceae wood, at a weight ratio set between 0.5% and 4% with respect to the weight of the composition. Essential requirement for the UV-protection additive to work in a water-based solvent-containing composition is that the pH is higher than a predetermined minimum value higher than 7.

A wood coating composition comprising: an acrylic or polyurethane or alkid resin, or a combination thereof; a water-based solvent comprising water and a polyalcohol, or an organic solvent selected among ketones, esters, aromatic hydrocarbons as toluene, alone or in a combination; wherein the resin has a weight ratio set between 10% and 80% or between the 20% the 70%, respectively with an or the other type of solvent. The compositions include a UV-protection additive comprising polyphenols, in particular a mixture of tannins extracted from such a wood as a Fagaceae, Mimosaceae or Rosaceae wood, at a weight ratio set between 0.5% and 4% with respect to the weight of the composition. Essential requirement for the UV-protection additive to work in a water-based solvent-containing composition is that the pH is higher than a predetermined minimum value higher than 7.

Improved silica-based matting agents are disclosed. The matting agents are useful in waterborne coatings composition to provide exceptional properties to a wood based substrate. Films resulting from the silica-based matting agents on a wood substrate unexpectedly provide improved chemical resistance and/or film clarity to the surface of the wood substrate. Methods of making and using the silica-based matting agents are also disclosed.

Improved silica-based matting agents are disclosed. The matting agents are useful in waterborne coatings composition to provide exceptional properties to a wood based substrate. Films resulting from the silica-based matting agents on a wood substrate unexpectedly provide improved chemical resistance and/or film clarity to the surface of the wood substrate. Methods of making and using the silica-based matting agents are also disclosed.

A process for manufacturing the composition coating may include selecting a wood or masonry material substrate and utilizing a sol-gel comprising a silane or silane derivative and metal oxide precursor to coat the substrate. The process may utilize an all solution process or controlled environment for manufacturing a composition coating that prevent wetting and/or staining of a substrate. The composition coatings for treating wood or masonry materials improves weather-resistance, microbial resistance, stain-resistance and fungal-resistance of the materials. The reduced permeability of the resulting masonry materials can also delay or inhibit degradation caused by permeation of ions such as chlorides and sulfates. In addition, a stain comprising the composite solution and pigments may impart additional property to wood or masonry materials whilst retaining or improving the original appearance, particularly for the visibility and contrast of the wood grain as seen after the application of the coating.

A process for manufacturing the composition coating may include selecting a wood or masonry material substrate and utilizing a sol-gel comprising a silane or silane derivative and metal oxide precursor to coat the substrate. The process may utilize an all solution process or controlled environment for manufacturing a composition coating that prevent wetting and/or staining of a substrate. The composition coatings for treating wood or masonry materials improves weather-resistance, microbial resistance, stain-resistance and fungal-resistance of the materials. The reduced permeability of the resulting masonry materials can also delay or inhibit degradation caused by permeation of ions such as chlorides and sulfates. In addition, a stain comprising the composite solution and pigments may impart additional property to wood or masonry materials whilst retaining or improving the original appearance, particularly for the visibility and contrast of the wood grain as seen after the application of the coating.

The invention relates to an aqueous polymer dispersion, with said polymer comprising, in its structure, monomer units incorporated from a composition of monomers comprising: a) at least one (meth)acrylic monomer which is a C.sub.1-C.sub.18 (meth)acrylic ester, without any ionic group, b) at least one ethylenically unsaturated monomer carrying at least one carboxylic acid group, c) at least one ethylenically unsaturated monomer carrying a tertiary amine, and with said polymer additionally carrying grafted blocked silane groups in the —Si(OR.sub.1).sub.3 or —Si—R.sub.2(OR.sub.1).sub.2 or —Si—(R.sub.2).sub.2(OR.sub.1), with R.sub.1, R.sub.2 being an identical or different C.sub.1 to C.sub.4 alkyl, and with said grafted blocked silane groups being incorporated by at least one or two routes or their combination. The invention also relates to a coating composition comprising said dispersion of the invention and to its use for aqueous protective coating compositions for wood.

A method for coating a building panel, the method including applying a first coating fluid including an organic binder on a surface of the building panel to obtain at least one coating layer, and applying barrier components and photocatalytic particles, preferably TiO.sub.2, on the at least one coating layer. Also, such a building panel.

A method for treating wood, is disclosed. The method includes developing a mud composite. The mud composite includes four parts mud. The mud composite includes three parts binder. The method includes mixing the mud composite until it reaches a creamy consistency. The method includes applying the mud composite to a wood fixture.

A method for treating wood, is disclosed. The method includes developing a mud composite. The mud composite includes four parts mud. The mud composite includes three parts binder. The method includes mixing the mud composite until it reaches a creamy consistency. The method includes applying the mud composite to a wood fixture.