Menu
Search
Filters
Close
Menu

09018 Performance of Maintenance Coatings Applied on Rusty Steel Surfaces

Picture for 09018 Performance of Maintenance Coatings Applied on Rusty Steel Surfaces
Picture for 09018 Performance of Maintenance Coatings Applied on Rusty Steel Surfaces Picture for 09018 Performance of Maintenance Coatings Applied on Rusty Steel Surfaces
Available for download

Presence of surface rust is normally assumed to decrease the performance of coatings. In this work various maintenance coatings were applied on pre-rusted steel cleaned by two different power tools: rotating disc and rotating steel brush.

Product Number: 51300-09018-SG
ISBN: 09018 2009 CP
Author: Ann Karin Kvernbraten, Astrid Bjorgum and Ole Oystein Knudsen
Publication Date: 2009
Industry: Coatings and Linings
$0.00
$20.00
$20.00

Presence of surface rust is normally assumed to decrease the performance of coatings. In this work various maintenance coatings were applied on pre-rusted steel cleaned by two different power tools: rotating disc and rotating steel brush. The rotating disc is much more efficient in removing rust than the rotating steel brush. The effect of cleaning method on the performance of the repair coating systems has been investigated. Surprisingly the rotating steel brush gave less corrosion creep than the rotating disc, in spite of the presence of an almost continuous film of rust on the steel brushed surface. Steel brushing removes less surface rust and salt contamination compared to the rotating disc, and rather poor results were therefore expected. The steel brushed samples had a surface quality corresponding to C St2, while the rotating disc gave a surface quality corresponding to C St3. Electrochemical characterization of cleaned panels showed a more positive corrosion potential for the steel brushed panels. This is probably due to a corrosion protection effect by the rust present on the surface of these samples.

Keywords: Organic coatings, maintenance, surface cleaning

Presence of surface rust is normally assumed to decrease the performance of coatings. In this work various maintenance coatings were applied on pre-rusted steel cleaned by two different power tools: rotating disc and rotating steel brush. The rotating disc is much more efficient in removing rust than the rotating steel brush. The effect of cleaning method on the performance of the repair coating systems has been investigated. Surprisingly the rotating steel brush gave less corrosion creep than the rotating disc, in spite of the presence of an almost continuous film of rust on the steel brushed surface. Steel brushing removes less surface rust and salt contamination compared to the rotating disc, and rather poor results were therefore expected. The steel brushed samples had a surface quality corresponding to C St2, while the rotating disc gave a surface quality corresponding to C St3. Electrochemical characterization of cleaned panels showed a more positive corrosion potential for the steel brushed panels. This is probably due to a corrosion protection effect by the rust present on the surface of these samples.

Keywords: Organic coatings, maintenance, surface cleaning

Product tags
Also Purchased
Picture for 09022 How Not to Perform a Failure Analysis
Available for download

09022 How Not to Perform a Failure Analysis

Product Number: 51300-09022-SG
ISBN: 09022 2009 CP
Author: Mark S. Schilling and Randy Nixon
Publication Date: 2009
$20.00

This paper discusses a classic example where the facts surrounding the failure of a lining system were ignored and undue reliance was placed on laboratory analysis. This “blind faith” in analytical data without a sound causal theory caused the failure analysts to disregard or overlook the obvious.
Picture for 09016 Protective Coatings Offshore: Introducing a Risk Based Maintenance Management System
Available for download

09016 Protective Coatings Offshore: Introducing a Risk Based Maintenance Management System

Product Number: 51300-09016-SG
ISBN: 09016 2009 CP
Author: Ole Oystein Knudsen, Sten Axelsen and Roy Johnsen
Publication Date: 2009
$20.00

Optimisation of maintenance and inspection programmes through risk analysis can be used for coating maintenance. The risk picture can be described by 1) Scenario, 2) Frequencies, and 3) Consequences, for protective coatings.  A systematic approach for optimisation of the maintenance programme has been developed.
Picture for 07006 INORGANIC ZINC PRIMER VS ORGANIC ZINC PRIMER: (an end-user point of view ).
Available for download

07006 INORGANIC ZINC PRIMER VS ORGANIC ZINC PRIMER: (an end-user point of view ).

Product Number: 51300-07006-SG
ISBN: 07006 2007 CP
Author: Massimo Cornago
Publication Date: 2007
$20.00

 In this paper the approach of an Oil Company is demonstrated from the initial choice between different primers: inorganic zinc and organic (epoxy) zinc., to all the preliminary pre-qualification tests, the subsequently field test performed, and the procedures adopted, costs included.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support