Unclassified 



SECURITY CLASSIFICATION OF THIS PAGECWhen Data £n(< 



20. Continued 



provided very good protection for 15 months on two steel vortex towers in a very 

 corrosive marine atmospheric environment. Newly developed cleaning and application 

 procedures and equipment were tested during the latter field study. Practices by the 

 Civil Engineering Laboratory currently recommended for coating protection of antenna 

 towers are also presented. 



Library Card 



Civil Engineering Laboratory 



REPAIR SYSTEM FOR DAMAGED COATINGS ON NAVY 



ANTENNA TOWERS - PART II (Final), by L. K. Schwab and 



R. W. Drisko 



TN-1562 50ppillus October 1979 Unclassified 



1. Coating systems 2. Steel tower coatings I. YF54. 593. 012. 01.004 



Coating materials and cleaning and application procedures and equipment were 

 developed for use in the repair of damaged coatings on Navy steel antenna towers. Experi- 

 mental coatings were screened by laboratory-accelerated testing before field exposure. In the 

 initial field exposure, 19 of 32 different coating systems provided good protection from 

 corrosion for 3 years to a steel antenna positioner in a marine atmospheric environment. In 

 a later field experiment, 8 of 12 of the better-performing coating systems provided very good 

 protection for 15 months on two steel vortex towers in a very corrosive marine atmospheric 

 environment. Newly developed cleaning and application procedures and equipment were 

 tested during the latter field study. Practices by the Civil Engineering Laboratory currently 

 recommended for coating protection of antenna towers are also presented. 



Unclassified 



ASSIFICATION OF Tl 



