21. Federal law sets a maximum of 600 parts per million for lead in paint or other surface coatings . 22. These fabrics usually consist of a backing woven from polyester fibers with a surface coating of shiny plastic. 23. They cause defects on surface coatings . 24. A "'Polymer brush "'is the name given to a surface coating consisting of polymers tethered to a surface. 25. In that way the color is an integral part of the fiber and not simply a surface coating . 26. Ohmic losses of waveguides at microwave frequencies are therefore only dependent on the surface coating of the material. 27. For biological applications, the surface coating should be polar to give high aqueous solubility and prevent nanoparticle aggregation. 28. In addition, the company is one of the market leaders in the fields of precision parts and surface coating . 29. It is also used as an abrasion-resistant surface coating on metal parts, such as tool bits and watch mechanisms. 30. Meanwhile a group at the University of Tennessee, Knoxville, is focusing on the thin surface coatings of rough diamonds.
