instruction of using solvent cleaner
Answer:
Solvent cleaning is generally the first surface preparation method applied to the parts. Solvent cleaning removes release agents, such as silicone that may coat the part during molding, and any machine oil transferred to the part. Abrading surfaces coated with oil or grease drives the contaminants further into the parts, and chemical alteration of the surface is ineffective in the presence of contaminants. Solvent cleaning should both precede and follow abrasive treatments. Porous surfaces should be wiped with a lint-free cloth moistened with solvent; the cloth should not be reused. A saturated cloth will not pick up debris particles from the substrate. The length of time required for solvent evaporation will vary according to solvent. A range of solvents are available depending upon the scale of the cleaning operation, environmental control facilities available, and the expected type of contamination [1, 14].
Solvents such as methyl ethyl ketone, toluene, acetone, isopropyl alcohol, trichloroethylene, and perchloroethylene can be used. Substrates can be wiped or sprayed with degreasing solvents, or they can be immersed in an agitated solution for about five minutes. Degreasing alone does not generally clean the substrate well enough to permit chemical surface alteration [1, 14].
