... vapor 0.1 4 85 0. 5-1 .0 2 0-4 0 Acrylic HCl vapor 0.1 4 85 0. 5-1 .0 2 0-4 0 Polyurethane HCl vapor 0.1 4 7 5-8 5 0. 5-1 .0 2 0-4 0 Polyester HCl vapor 0 .2 4 85 0. 5-1 .0 2 0-4 0 Epoxy HCl vapor ... and its containment varies widely, as is illustrated in Fig. 17, 18, 19, 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30, 31, 32, and 33. For a pure metal, surface attrition may proceed in an orderly, ... 1000 °C (1830 °F) for 2 h. Light micrograph. Etched with 25 % HF, 12. 5 HNO3, 12. 5% H 2 SO4 in water. Source: Ref 12 Epoxy urea NaCl/FeCl 2 0.0 1-0 .46 0. 4-1 8 80 0 .25 10 Epoxy Acetic...