Saran. Saran also performed well in protecting the surfaces of the 

 panels from fouling and corrosion. However, heavy crevice corrosion along 

 the edges of the stainless steel panels was experienced when seawater came in 

 contact with the metal through small rupture holes made in the plastic film. 

 The pressure-sensitive adhesive material on the saran film seemed to adhere 

 more tenaciously to various clean test surfaces than the adhesive material on 

 the TFE film. The saran film was especially well attached to the surface of 

 sandblasted carbon steel. For this reason, considerable difficulty was 

 encountered during the stripping process because the saran film would tear 

 off into small pieces. However, the plastic film did peel off in fairly large 

 sections from painted carbon steel panels and from stainless steel panels 

 without too much difficulty. A slightly thicker saran film should be used 

 for the fouling and corrosion protection of submerged materials. 



Figure 9. Stainless steel panels after biological growth and plastic covering 

 had been removed. Control panel 10 has numerous barnacle 

 baseplates attached to the surface. Panels 1 1 and 12 were 

 protected with TFE film. Evidence of fouling growth is 

 visible where TFE film was torn due to unknown causes. 

 Crevice corrosion along the edges of panels 1 1 and 12 is 

 visible. 



13 



