Aerosol spray paints

Thermoplastic acrylics are used extensively in aerosol lacquers, both as solid colours and metallics, in touch up automotive refinish applications. Due to their excellent colour, colour retention, rapid drying, relative inertness to metallic and fluorescent pigments, and exterior durability, they are also used for small household jobs such as repainting furniture (chairs, stools), metal coatings, marking paints etc. 

B48N is the preferred resin because of its adhesion to bare metals such as chrome. Paraloid B66 can be used for pigmented refinish (Duplicator license) 

Paraloid B66 is a Tg 50°C MMA/BMA copolymer, 50% nvc in toluene. For exterior car touch up enamels, it is recommended that a UV absorber system is incorporated into this formulation. 

Paraloid B72 is an ethyl methacrylate (EMA) copolymer, Tg 40°C, 50% nvc in toluene. It has low reactivity with sensitive phosphorescent and luminescent pigments, and produces stable, durable non-yellowing coatings. It is compatible with vinyls, cellulosics, chlorinated rubbers and silicones, and is used in clear, metallic and solid colour formulations. 

The above formulations are filled into the aerosol can, together with the propellant mixture at a 70/30 paint/propellant ratio. 

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As part of the NAFTA Technical Working Group on Pesticides, priority areas for development of biocide applicator data have been agreed upon. These include, in order of priority, high-pressure spray, low-pressure spray, painting (roller/brush), wipe/mop, place solids, aerosol spray, painting (airless), pour solid, pour liquid and pump liquid. 

Aerosols Spray paint butane, propane, fluorocarbons... 

Aerosol Spray Paints, Industrial Cleaning Solvents, Flat Wood Paneling Coating, Lithographic Printing Materials ... 

Aerosol ar-o- Sal, er-, - S61 (1923) n. A suspension of liquid or solid particles in a gas (e.g., smoke, fog mist). In the packaging industry, the term means a self-contained sprayable product in which the propellant force is supplied by a compressed or liqui-dified gas (e.g., isopentane) for an aerosol spray paint. ... 

Aerosol sprays consist of a material dissolved or suspended in a liquid which when pressure is released volatilizes to produce a fine spray. The spray carries the active material. Used in hair lacquers, paints, etc. the propellant should be inert and non-inflammable. Chlorofluorocarbons have been used extensively but are now being replaced. 

An interesting appHcation is the study of aerosols, such as sprayed paint. A flash hologram of the paint spray at a convenient magnification records positions and sizes of the particles ia the hologram. This image can then be studied at leisure at higher magnification for size and shape of iadividual particles. 

You have undoubtedly used one of the common products of modem society, the aerosol spray can. We use these handy containers to deliver fine mists of many useful products. Do you need to keep your hair in place Use an aerosol spray can to apply mousse. Do you want to get rid of unpleasant room odors Spray the air with an aerosol air freshener. Has the paint worn off your favorite outdoor chair Touch it up using an aerosol paint can. These are just three of the many products that can be delivered using aerosol sprays. 

Inhaled substances may be associated with practices and equipment that may lead to suffocation. Commonly abused inhalants include model glue, spray paints, cleaning fluids, gasoline, liquid typewriter correction fluid, and aerosol propellants for deodorants or hair sprays. Most inhalants produce a rapid high that resembles alcohol intoxication. If sufficient amounts are inhaled, nearly all solvents and gases produce a loss of sensation, and even unconsciousness. Adverse effects may include severe organ damage. 

HDI is a monomer used in the production of polyurethane foams and other related products, and is found in some industrial paints and spray painting operations. It is a compound which reacts readily with water and alcohols (Von Burg 1993). It has a vapor pressure of 0.05 mm Hg at room temperature, but can be present in aerosol form allowing a potentially higher exposure to individuals. The HDI-BT trimer is often present for similar industrial uses. It would be expected to have a lower vapor pressure however, the aerosol form can also be present, allowing potentially higher exposure of HDI-BT to individuals. HDI reacts slowly with water to form carbon dioxide (HSDB 1996). The base-catalyzed reaction of HDI with alcohols should be carried out in inert solvents the reaction may occur with explosive violence in the absence of solvents (NFPA 1994). 

Hulse PM. 1984. An evaluation of HDI in polyurethane spray paint aerosols. NTIS AD-A151 606. 

A solvent is a substance that can dissolve another substance, and a volatile solvent is a liquid that vaporizes at room temperature. Volatile solvents include adhesives such as airplane glue and rubber cement aerosols such as spray paint, hair spray, and air freshener solvents such as nail polish remover, paint remover, and lighter fluid and cleaners such as dry cleaning fluid, spot remover, and degreasers. 

Aerosols Sprays containing propellants and solvents. In the United States, spray paints contain butane and propane (aliphatic hydrocarbons), fluorocarbon, hydrocarbons, and toluene hair sprays and air fresheners contain butane, propane, and fluorocarbon aerosol spray topical pain relievers and asthma sprays contain fluorocarbon. 

Uses 1,1,1-Trichloroethane is a colorless, nonflammable liquid with a sweet smell similar to that of chloroform. It is absorbed by the system mainly by inhalation but also can penetrate the skin. 1,1,1-Trichloroethane does not occur naturally in the environment. It is found in many common products such as glue, paint, industrial degreasers, and aerosol sprays. In view of its impact on the ozone layer, all attempts have been made to stop its production in different countries of the world.116 1163 125... 

Most of the materials that we have discussed—glass, stainless steel, aluminum, brass, plastics—require no protective coating. Parts made of mild steel, welded angle iron, or pl3Twood should be given a coat of paint, which is most conveniently done using du Pont Krylon acrylic aerosol sprays. Clear polymer varnishes and Teflon coatings can also be applied in spray or liquid form. 

Combustion of fuels produces and releases pollutants such as hydrocarbons, carbon monoxide, oxides of nitrogen, particulate matter, sulfur dioxide, and greenhouse gases such as carbon dioxide and nitrous oxide. Air pollutants are also released by some household products—for instance, paints, paint strippers, solvents, wood preservatives, aerosol sprays, cleansers and disinfectants, moth repellents, stored fuels, and automotive products. 

Most of the 300+ organic vapors that may be found in indoor pollution are derived from paints, paint strippers and other solvents, wood preservatives, aerosol sprays, cleansers and disinfectants, moth repellents, air fresheners, in addition to fuels and automotive products, and dry-cleaners. Many of these compounds are halogenated hydrocarbons, PAH, ketones and aldehydes, which exhibit different degrees of toxicity. 

Inhaling aerosol propellants is a bit mure complicated than inhaling solvents because the propellants come mixed with other substances. For example when you press the button on a can of black spray paint, what comes out is a cloud of tiny droplets of black paint and gas. Inhaling black paint does not get you high and can make you very sick. Some users solve this problem by spraying the can into a bag or balloon so that the particles separate from the gas by adhering to the sides. Others turn the cans upside down so that only Freon comes out, and still others inhale the sprays through doth filters. 

Aerosols comprise compounds such as spray paints, hair sprays, pain-relieving sprays, deodorants, fabric-protector sprays, vegetable frying-pan lubricants, and hundreds of other everyday chemicals that are found in homes or are readily available commercially. Products that create an aerosol use propellants to keep tiny particles suspended in the air. For the most part these propellants, not the liquid product, are the chemicals abused. Virtually any aerosol product can be abused. 

Aliphatic hydrocarbon compounds are found in lighter fluid and fuel gas, as well as in paint sprays, hair sprays, and air fresheners. These compounds are highly flammable and explosive. They include compounds like acetylene, butane, hexane, isobutene, and propane. Butane is often used as the propellant in aerosol sprays. 

Trichloroethylene and 1,1,1-trichloroethane are used in correction fluids, dry-cleaning products, degreasing sprays, and solvents and spot removers. Bromochlorodifluoro-methane is a compound found in halon fire extinguishers that is abused. Freon is used for refrigeration and air conditioning systems. Anesthetics include halothane, chloroform, and the local anesthetic ethyl chloride. Methylene chloride is a component of rubber cement, paint strippers, and degreasing agents, and fluorocarbons are present in many types of aerosol sprays. 

Under 16 years volatile inhalants, e.g. solvents of glues, aerosol sprays, vaporised (by heat) paints, solvent or substance abuse, gluesniffing. ... 

Another major use of aluminum is in packaging (23 percent). Aluminum foil, beer and soft drink cans, paint tubes, and containers for home products such as aerosol sprays are all made from aluminum. 

Methylene chloride is a widely used industrial chemical with reported atmospheric emissions of more than 126 million pounds annually in the United States. The principal route of exposure for the general population to methylene chloride is by inhalation. Occupational and consumer exposure to methylene chloride commonly occurs from spray painting and contact with consumer products such as paint strippers or aerosol cans, that contain methylene chloride. Exposures may occur as a result of breathing the vapors given off by the product or from direct dermal contact. Occupational exposure to methylene chloride by the inhalation route offers the most opportunity for exposure but it can also be absorbed through the skin. 

Current suppliers for the DME propellant market include DuPont, Akzo Nobel, and Mitsubishi Gas Chemicals. Demeon D, a DME-based product from Akzo Nobel, is used as a propellant in cosmetic formulations, foam blowing, and paint or other aerosol sprays. 

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