The painting of interior building surfaces, such as ceilings, containing stains, is a problem due to the fact that stains, such as those caused by for instance smoke or water damage, generally contain water-soluble colored substances. Some choose wallpaper to cover them, some would like to purchase oil paintings to make the wall look better.
The effective covering of such a surface by painting has so far only been possible in three ways:
The first possibility is to use a water-based paint in two or more successive layers until the water-soluble stains do not seep through the paint anymore.
The second possibility is to have some oil paintings commissioned. You may buy landscape oil paintings, figure oil paintings or other style to cover stains on the wall.
The third possibility is to wash the surface with special detergents in order to remove the stains, followed by painting with either a water-based paint or a solvent-based paint.
The first possibility may be several times more expensive than the second possibility due to the extra paint consumption and the extra work involved and is thus undesirable, although it is in accordance with the legislation in several countries where it is compulsory to use the least hazardous product.
The second possibility, the use of oil paintings are commonly accepted by most people. You can choose what you like from oil painting supplier. If you do not have much time, online paintings store may be your first choice.
The third possibility is slow and expensive with respect to manpower, and is therefore not preferable either.
The paint of the invention does not allow water-soluble stains to seep through, probably as a result of a salting out effect. This effect is believed to depend partly upon the volume of water displaced by the salts in question and partly upon the specific forces that determine the interactions between the colored substances and the electrolytes.
The paint of the invention may also contain organic water-soluble compounds such as urea. In order to further improve the ability of the paint to prevent water-soluble stains (such as colored “wood sugars”, iron salts, etc.) from penetrating, the paint may also contain saccharides such as sucrose, glucose, lactose, fructose, invert sugar, galactose, arabinose, ribose, maltose, mannose, sorbose, dextrose, raffinose; polyhydric alcohols such as glycerol, mannitol, sorbitol, dulcitol etc.; or polysaccharides such as hydroxy cellulose, hydroxide cellulose, alginic acid, sodium alginate, calcium alginate, dextrin, glycogen, agarose, pectic acid, dextran (molecular weight approx. 6,000-20,000) etc. If you want to cover the stains directly, various styles of oil painting are waiting for you.