Paint systems water based

State-of-the-art technology includes a wide variety of solutions to these problems such as recirculation systems, water-based paints, aqueous dispersions, refrigeration plants, purification processes, filtration. 

Uses Matting agent for paints/coatings, pigmented coatings, thin lacquer systems, water-based lacquers... 

Uses Biocide for wet-state systems, water-based paints/coatings, inks Acticide SPX [Thor UK Tennants Distrib. Ltd]... 

Uses Emulsifier defoamer for dehydrating, evaporating, abrasive slurries, metalworking, adhesives, antifreeze, hotaq. systems, water-based inks and paints, vinyl latex binders and emulsions, petrol., textiles, paper, cutting oils, fermentation processing, commercial cleaning compds., insecticides/pesticides... 

Uses Gellant, rheology control agent, thickener, stabilizer for aq. systems, water-based adhesives, latex-based architectural coatings, traffic paints binder for foundry moldings... 

Wa.ter-Ba.sedPaint. Fluorescent pigments also have some use in water-based paint systems, with many being sensitive to aqueous media, especially at pH above 7.5. For extended shelf stabiHty, Radiant P-1600 or P-1700 Series, Day-Glo T and GT pigments, and Sinloihi FZ-3000 Series are recommended. 

Copolymers with butadiene, ie, those containing at least 60 wt % butadiene, are an important family of mbbers. In addition to synthetic mbber, these compositions have extensive uses as paper coatings, water-based paints, and carpet backing. Because of unfavorable reaction kinetics in a mass system, these copolymers are made in an emulsion polymerization system, which favors chain propagation but not termination (199). The result is economically acceptable rates with desirable chain lengths. Usually such processes are mn batchwise in order to achieve satisfactory particle size distribution. 

Use as Solvent. Toluene is more important as a solvent than either benzene or xylene. Solvent use accounts for ca 14% of the total U.S. toluene demand for chemicals. About two-thirds of the solvent use is in paints and coatings the remainder is in adhesives, inks, pharmaceuticals, and other formulated products utilizing a solvent carrier. Use of toluene as solvent in surface coatings has been declining, primarily because of various environmental and health regulations. It is being replaced by other solvents, such as esters and ketones, and by changing the product formulation to use either fully soHd systems or water-based emulsion systems. 

Eor water-based alkyd paints, greater (0.2% cobalt on a resin basis) concentrations of drier are required than for other systems because the reaction of the drier with water decreases the activity of the catalyst. The cobalt content of oil-based paint formulations is usually 0.01—0.05% cobalt. Although the concentration of cobalt in the formulations is small, the large volume of paints, inks, and varnishes constitute a significant use for cobalt chemicals. 

Stripping of top coats soaked by rain or sea-water has occurred with alkyd-resin-based paint systems, mainly on ships. The risk of such intercoat failure is reduced if the time interval between application of coats is reduced, but is best controlled by modification of the alkyd resin with a proportion of a different material. 

Installation of a water-based electrostatic immersion painting system to replace a solvent-based painting system. The water-based system resulted in a waste solvent reduction of more than 95%. 

These are the most important components of paint. Coatings can be either clear or opaque (containing pigments) and either solvent- or water-based. With solvent-based paints, after application, most of the solvent is lost through evaporation. These solvent-based coatings are mostly alkyds (name derived from alkyl/acid) or modified alkyd resins. Normally they contain 30% polymer solids higher solids content is limited by the increasing viscosity of the system. 

In 1992, Volvo built an aluminum-bodied hybrid Environmental Concept Car (ECC) to California emission mandates. It had the recyclable plastic panels and water-based paints that are used by Volvo. A series hybrid drive train was used where a diesel gas turbine drives a generator to charge a battery pack to power an electric motor. The system is complex, but the car achieves good performance with low emissions and a 400-mile range. 

Arias, 1999 Haslbeck and Holm, 2005). Both methods are based on a painted polycarbonate rotating cylinder immersed into a holding tank in which artificial sea water of known composition is kept at relatively constant conditions (see Table 1). At specific time intervals, the cylinder is immersed into a 1.5 litre tank where they are rotated for typically 1 hour, after which the total copper released is determined. In this way, copper release rate vs. time curves are obtained. Typically, the average release rate value between day 21 and 42/45 and the accumulated release rate during the first 14 days of exposure are used to compare the different paint systems. 

The substitution of chemical solvents by water in paint and coating systems and also in cleaning processes creates complex evaluation issues, as the number of the various chemical components contained in the corresponding products generally increases. In addition, the release of persistent substances into the aquatic environment tends to be favoured by this. This therefore raises the question for assessing two suitable strategies containment of known hazardous substances in closed systems or substitution of the mobile solvent by complex water-based systems that are scarcely evaluable from a toxicological aspect. 

The benefits demonstrated from the preservative use of Bronopol alone and in combination with other preservatives have been realised in several other application fields, namely polymer dispersions, adhesives, paper coatings and water-based paints. By way of example, the results of a study in a water-based paint system are reported, where Bronopol is evaluated alone and in combination with 2,2-dibromodicyanobutane (DBDCB). 

Another important property is Bronopol s ability to act synergistically with other preservatives. The data presented here confirm the benefits of combining Bronopol with isothiazolinones (CIT/MIT) in mineral slurries and points to synergistic activity in combination with 2,2-dibromodicyanobutane (DBDCB) in a water-based paint system. The careful use of combinations of this sort could... 

Bismuth vanadate pigments are used in the manufacture of lead-free, weather resistant, brilliant yellow colors for automobile finishes and industrial paints. They are suitable for the pigmentation of solvent-containing paints, water-based paints, powder coatings, and coil-coating systems. It can be mixed with other pigments... 

Both aqueous polymer-based systems (latex), made by emulsion or dispersion polymerization, and oil-modified alkyd resin-based systems are still in wide use [781], Table 12.2 shows the composition of a typical water-based emulsion paint. There is a wide variety of coatings, ranging from broad applicability to highly specialized, including latexes, amino resins, isocyanates, epoxy resins, acrylic resins, polyester... 

Paints are commonly divided into oil-base, or solvent systems, and latex, or water-base, paints. These paints are essentially a suspension of inorganic pigments and a resin, or vehicle, in a suitable solvent. Paints protect wood surfaces by forming an ultraviolet absorbing film that adheres strongly to the surface. 

Low surface tension (poor wettability ) may be a factor, with apparent repulsion of the paint and prevention of its rapid, even spread over the whole surface test inks of different values are available so that wettability can be assessed in advance with samples of the items concerned for satisfactory use with paints based on organic solvents, surface values of greater than 50 mN m 1 are desirable, and for water-based systems values greater than 70 mN m. ... 

Water Base Paint - No Solvent. As in the case above, the 45)1 solids water based system will present a removal burden of 68.4 gallons to the oven. This represents 570 pounds/hour which must be removed, or a heat input of 0.74 x 10° BTU/hr for evaporation. 

At a gas cost of 2.50 per 1000 ft3 and power costs of 30/kWhr one arrives at an hourly energy cost of the system for water based paint of ... 

Water-based inorganic zinc primer 65 100-125 15 min 8 h Self-curing alkali silicate primer under most paint systems, good from — 90°C to 400°C, withstands rain 60 min after application, fair flexibility, good abrasion resistance when cured... 

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