From the testing at Panama City it was found that: 



1. The steel, pressurized equipment for supplying paint to the 

 surface of the substrate or applicator is extremely difficult and costly 

 to clean for reuse. A system with a collapsible, disposable plastic bag 

 for a reservoir would be much more practical. 



2. Whenever paint application problems are encountered, a sand- 

 blasted surface is somewhat easier to coat than a wirebrushed surface, 

 and a horizontal surface is somewhat easier to coat than a vertical 

 surface. 



3. CEL formulation 101-19 is an easily applied, versatile product 

 that can effectively coat underwater- sandblasted or -wirebrushed steel 

 surfaces in both horizontal and vertical positions. It can be applied 

 as a topcoat to itself. 



4. The NCSL underwater paint applicator can be effectively used to 

 apply 101-19, but it may not presently be in its most effective form. 



SUMMARY 



From the laboratory and field testing, it was determined that 

 Formulation 101-19 was the most practical of those tested. It is avail- 

 able commercially for use by the Navy or private industry. The choice 

 of a brush, roller, or curved plastic applicator varies v/ith the indi- 

 vidual diver and the job. The roller and plastic applicator are best 

 used on large, flat surfaces, while the brush can be used on any type of 

 surface. A relatively stiff, round brush appears to be especially 

 effective. Sandblasting was the most effective of the five surface 

 preparation systems tested; waterblasting was the next best. 



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