Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (When Dnm EnleredJ 



REPORT DOCUMENTATION PAGE 



. REPORT NUMBER 



TN-1426 



2. GOVT ACCESSION NO 



DN544145 



3. RECIPIENT'S CATALOG NUMBER 



4. T\rLE (and Subtitle) 



UNDERWATER- APPLIED COATINGS FOR STEEL 

 STRUCTURES 



i. TYPE OF REPORT a PERIOD COVERED 



Final; Jul 1973 -Jun 1975 



6 PERFORMING ORG. REPORT NUMBER 



7. AUTHORfs; 



Richard W. Drisko 



CONTRACT OR GRANT NUMBERCiJ 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



CIVIL ENGINEERING LABORATORY 

 Naval Construction Battalion Center 

 Port Hueneme, California 93043 



62761N 

 YF54.593.006.01.002 



CONTROLL 



-FICE NAME AND ADDRESS 



Naval Facilities Engineering Command 

 Alexandria, Virginia 22332 



12. REPORT DATE 



March 1976 



13. NUMBER OF PAGES 



17 



14. MONITORING AGENCY NAME » ADDRESSfif dil 



IS. SECURITY CLASS, (o 



Unclassified 



16. DISTRIBUTION STATEMENT (ol thii Report) 



Approved for public release; distribution unlimited. 



17. DISTRIBUTION STATEMENT (ol the ebs 



In Block 20, II • 



18. SUPPLEMENTARY NOTES 



<EY WORDS (Co 



Identify by bloc 



Underwater-applied coatings; steel structures; waterfront structures; corrosion; epoxy 

 coatings; sandblasting; waterblasting. 



f Identity by bio 



20. ABSTRACT (Continue on reverse side II nece! 



Several underwater-applied epoxy coatings were developed for protecting steel struc- 

 tures in seawater. The more promising formulations were laboratory and field tested at 

 different times using a brush, a roller, and a curved plastic applicator developed by the Navy 

 Coastal Systems Laboratory. The coating that was the easiest to apply underwater is now 

 marketed by a commercial supplier. Sandblasting was found to be the best method of pre- 

 paring steel surfaces for painting underwater, and waterblasting was the next best of the five 

 methods tested. 



DD 1 JAN^S 1473 EDITION OF I NOV 65 IS OBSOLETE 



Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



MBL/WHOI 



D D3D1 DD^Q^Dfl 7 



