Effects of energy, economics, and ecology on marine coatings

Journal Article · Fri Apr 01 04:00:00 EST 1977 · Mater. Performance; (United States)

OSTI ID:6804121

Drisko, R W

Materials and procedures for ship hull and super-structure coatings systems on U.S. Navy vessels has changed in response to pressure of ecological controls, economics, and logistics. Changes reflect closer attention being paid to the technological developments that can influence coating practices. Developments in surface preparation techniques include controls of dust from abrasive blasting and wider use of hydraulic and/or abrasive entrained water surface preparation. Inhibited water blasting is being investigated. New rust removal processes involving acidic stripping and conversion are in use. Efforts are underway to develop underwater ship hull cleaning to reduce drag from marine fouling and thus improve energy efficiency of ships. Reclamation of abrasive shot and dry ice abrasives is being tested. Coating developments leading to water-dispersed organics, especially epoxies, polyesters, and coal tar epoxy formulations are underway, eliminating air pollution by solvents. Better surface preparation is essential for successful use of water-based formulations, however. Brushable epoxies, studies on adhesion, and topcoating practices are being developed. Antifouling coating developments include organotin formulations using chemical bonding for longer effective life. Landfill disposal of toxic antifouling coating removed from hulls is practiced. (16 refs.)

• OSTI ID: 6804121
• Journal Information: Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 16:4; ISSN MTPFB
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320204* -- Energy Conservation
Consumption
& Utilization-- Transportation-- Sea & Water
ABRASIVES
ADHESION
ANTIFOULANTS
CHEMICAL BONDS
CLEANING
CONTROL
DEPOSITION
ECOLOGY
ECONOMICS
EPOXIDES
MATERIALS TESTING
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
REMOVAL
SHIPS
SOLVENTS
SURFACE CLEANING
SURFACE COATING
SURFACE FINISHING
TESTING