Paint containing water

Washability is greatly improved by the incorporation of relatively small amounts of silicone resins in paints containing water-soluble intumescent agents. 

There are the popular paints containing water. They are called water-base, water-thinned, aqueous, etc. These water-based paints include... 

Paints containing water (latexes) have a dispersion of high-MW plastic in water. This condition results in the desirable low solvent emission. Because the TP is not in solution, the rate of water loss is almost independent of composition until it is close to complete evaporation. 

Fine surface fungal growth on the lid of a plastic paint container. Water condensing on the lid can provide contaminant organisms that may infect the paint... 

Phthalocyanine Blues. a-Copper phthalocyanine blue is a reddish species used primarily in coatings and plastics. Several varieties are marketed. The basic form, the unstable Pigment Blue 15 [147-14-8] (Cl 74160), is used in water-based paints, paints containing weak petroleum solvents, and in certain plastics, eg, PVC, that require mild processing conditions. 

Electrodeposition This method of paint application is basically a dipping process. The paint is water-based and is either an emulsion or a stabilised dispersion. The solids of the paint are usually very low and the viscosity lower than that used in conventional dipping. The workpiece is made one electrode, usually the cathode, in a d.c. circuit and the anode can be either the tank itself or suitably sized electrodes sited to give optimum coating conditions. The current is applied for a few minutes and after withdrawal and draining the article is rinsed with de-ionised water to remove the thin layer of dipped paint. The deposited film is firmly adherent and contains a minimum of water and can be stoved without any flash-off period. This process is used for metal fabrications, notably car bodies. Complete coverage of inaccessible areas can be achieved and the corrosion resistance of the coating is excellent (Fig. 14.1). 

Emulsion paints are based on aqueous synthetic resin dispersions, which afford a lacquer-like paint film. The resin dispersions which are commonly used by the paint industry contain water as the carrier phase. A large number of such dispersions are available, based on different resins such as poly(vinyl acetate), which may be employed as a copolymer with vinyl chloride, maleic dibutyl ester, ethylene, acrylic acid esters, polyacrylic resin, and copolymers of the latter with various monomers, as well as styrene-butadiene or poly(vinyl propionate). These disper-... 

Three workers applying an epoxy-based waterproofing paint containing glycidyl ether inside an underground water tank died in the tank of asphyxia. Constituents of epoxy resin will displace oxygen in a confined space and may have an independent narcotic effect on exposed workers. Strict precautionary measures are recommended under these conditions. ... 

The application of paint is practiced within most fabricated metal industries. Surface coatings are used wherever it is desired to provide decoration, protection, and/or safety marking to a product or item. Most paint coatings for fabricated metal products are solvent based although many shops are replacing these with water based materials. Because many of the paints contain heavy metals, reducing paint wastes also results in reducing metal wastes. 

Variety of watercolor papers, each piece cut to the same size (suggested papers cold press, one medium texture, one rough texture hot press, manila white drawing rice and other available papers) watercolor paint paintbrushes mixing containers water containers water masking tape. 

Handmade paper tempera paint (poster paint) oil or egg tempera paint prepared in Activity 2.5 paintbrushes mixing trays water containers water construction paper, newspaper, magazine pages, and other available paper bits of cloth, thread, and other materials scissors glue 12-x-18-in. collage ground, such as cardboard. 

Normal (synthetic) paint can usually create serious problems for MCS patients. It s thus best to look for natural paint, namely those kinds based in minerals or plants. Some paints contain a natural solvent and others use water for dilution. Even natural solvents can sometimes cause allergic reactions in sensitive people, so be careful. Natural paints based in water are without a doubt the safest for MCS patients. In any case, always first put some paint on a small out-gassed board and place it in your home to see if you react to it (perhaps even put the board next to your bed). Never paint your entire home or safe room in one go First do the board test, then paint a wall, then paint a room and see if everything is still all right. Only then should you proceed with other rooms. See Part VIfor several natural and organic solutions or go to www.the-abc-of-mcs.com under Living. ... 

Most paints used in the household today are water-based products. Significant quantities of paints, primers, and brush cleaners are washed down the drain during cleanup following painting. Water-based paints contain numerous toxic chemicals. These include pigments (many with heavy metals), biocides, glycol ethers, binders, amines, acrylate, and other polymer monomers, surfactants, aliphatic and aromatic hydrocarbons alcohols, ketones, and esters. I36,37 ... 

In addition to water, these paints contain biocides, surfactants, pigments, monomers, coalescing solvents, driers, and volatile additives. 3,121 Volatile components contained in these include aldehydes, aliphatic hydrocarbons (straight chain and cyclic), aromatic hydrocarbons, esters, ethers, glycol ethers, glycol ether esters, and halogenated hydrocarbons. Some of these materials are listed in Table 12.4. 

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