Paint stripping

Since double bonds are no longer present, these compounds are more stable than the corresponding furan derivatives. Tetrahydrofurfuryl alcohol—ethylene oxide adducts [31692-85-0] are also usehil solvents for paint stripping formulations (136,141,143). 2-Methylfuran is a good solvent, but... 

Trichloroethylene use has declined as a result of environmental concerns. However, trichloroethylene may replace some 1,1,1-trichloroethane appHcations. Perchloroethylene used in small businesses for dry cleaning will be regulated for emissions under the same guidelines as those that govern the large chemical producers. This will cause replacement of perchloroethylene for those appHcations where recovery is uneconomical. Methylene chloride has been classified as a suspected carcinogen and its use will decline in aerosol and paint stripping appHcations because of health concerns. 

Eor use in paint strippers, one of its first appHcations, methylene chloride is blended with other chemical components to maximi2e its effectiveness against specific coatings. Typical additives include alcohols, acids, amines or ammonium hydroxide, detergents, and paraffin wax. Paint stripping formulations without methylene chloride have not as yet been shown to be as effective as those with methylene chloride. 

Abrasive media cleaning systems, replacing hazardous organic solvents for paint stripping (Davis et al., 1994)... 

Paint stripping by water is most likely to occur from cathodic areas, the phenomenon of cathodic disbonding sometimes observed on steel protected by external anodes or impressed current being a particularly... 

The Institute for Research and Technical Assistance (IRTA) identifies, develops, tests and demonstrates safer alternatives in cleaning applications, dry cleaning, paint stripping, coatings, adhesives and lubricants. 

Paint stripping is the process of removing an organic coating from a workpiece. The stripping of such coatings is usually performed with caustic, acid, solvent, or molten salt. 

See also Finish removers Paint solvents, 18 59-60 Paint stripping, methylene chloride in, 16 378... 

A profile of methylene chloride is presented including US production capacities, demand, growth rate, price, uses, strength, weakness and outlook. Paint stripping and removal accounts for 30% of MeC by end-use application, adhesives 20%, metal cleaning 10%, aerosols 10%, pharmaceuticals 10%, chemical processing 10% and flexible PU foams 5%. Because of occupational concerns, users of MeC are under pressure to limit use, restrict... 

Innovation drivers Alternative paint strippers have been developed as a consequence of the chlorine debate . However, neither the detailed requirements related to occupational health and safety (TRGS 612 and 212) nor the lower efficiency (cf (3)) clearly supported the penetration of the market with the alternative paint stripping systems. One barrier may be that the users have to change their work and purchasing procedures to apply the alternatives successfully. By end of the nineties the construction employers liability insurance started, based on the public media, an information campaign about the risks of DCM-containing paint strippers. 

Methylene chloride Degreasing, paint stripping, Metabolized to CO, resulting in formation of carboxy-... 

According to information supplied by the vendor in 1996, the dry ice pellets used in the Cryogenesis system cost between 15 and 30 cents per pound. The system uses from 100 to 150 lb of pellets per hour. More dry ice is required for paint stripping applications, and less for oil film and clinging dirt removal (D15397T). 

Verhoeff, A.P., Suk, J. van Wijnen, J.H. (1988) Residential indoor air contamination by screen printing plants. Int. Arch, occup. environ. Health, 60, 201-209 Verschueren, K. (1996) Handbook of Environmental Data on Organic Chemicals, 3rd Ed., New York, Van Nostrand Reinhold, pp. 943-947 Vincent, R., Poirot, R, Subra, L, Rieger, B. Cicolella, A. (1994) Occupational exposure to organic solvents during paint stripping and painting operations in the aeronautical industry. Int Arch, occup. environ. Health, 65, 377-380... 

Chapter 4.3 Chemical Leasing in the Field of Paint Stripping... 

Table 3 summarizes personal occupational exposures measured in various industries using dichloromethane. The levels vary widely by operation and within operations. Concentrations exceeding 1000 mg/m have been measined, e g., in paint stripping, in the printing industry and in the manufacture of plastics and synthetic fibres. Full-shift exposures to levels above 100 mg/m of dichloromethane are possible, e g., in furniture-stripping shops and in certain jobs in aeronautical, pharmaceutical, plastic and footwear industries. 

Vincent R., Poirot, P, Subra, I., Rieger, B. Cicolelle, A. (1994) Occupational exposure to organic solvents during paint stripping and painting operations in the aeronautical industry. Int. Arch, occup. environ. Health, 65, 377-380... 

Aerolyte Systems Company. 1985. "Dry Paint Stripping." Aerolyte Division of Clemco Industries. Burlingame, Calif. 

Dumey, LJ. December 1982. "How to Improve Your Paint Stripping." Products Finishing. Pp. 52-53. 

Products Finishing. December 1982. "Cryogenic Paint Stripping." Pp. 54-57. 

Each component has a specific function. The Metasilicate will increase paint stripping efficiency provided sufficient alkalinity is present. The Gluconate or Glucoheptonate provide the derusting. Burco TME and Burco ADS-100 provide removal and dispersion of particulate soils while the Dodecylbenzenesulfonate adds wetting and oily soil detergency. Each component can be adjusted according to the improvement needed. 

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