CONTENTS 



Page 



INTRODUCTION 1 



MATERIALS INVESTIGATED 1 



LABORATORY TESTING 3 



FIELD SURFACE-PREPARATION TESTS 5 



FIELD TESTING OF UNDERWATER-APPLIED PAINTS ON QUEEN MARY 8 



USE OF CEL UNDERWATER-APPLIED PAINT BY PORT OF LONG BEACH .... 9 



FIELD TESTING AT PANAMA CITY 10 



SUMMARY 15 



REFERENCES 16 



LIST OF ILLUSTRATIONS 



Figure 1. Corroded steel panels in specimen holder. 6 



Figure 2. Waterblasting of steel panels above water 



(Treatment 1) 7 



Figure 3. Waterblasting of steel panels underwater 



(Treatment 2) , 7 



Figure 4. Test panels cleaned by Treatment 1 8 



Figure 5. Two test panels; left panel before wirebrushing 



underwater and right panel after sandblasting 11 



Figure 6. Hydraulically powered wirebrush equipment used 



for cleaning steel panels underwater 11 



Figure 7. Curved plastic applicator which was designed 



and fabricated by NCSL 12 



Figure 8. Coated test panel after curing underwater 



overnight 12 



Figure 9. Equipment for supplying paint directly to 

 test specimen using compressed air from a 

 cylinder. (The pictured roller was not 

 used in the field test.) 14 



