Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

Overcoating, Do You or Don’t You

Overcoating, Do You or Don’t Yo
Available for download

This paper will address conditions assessment, test procedures and criteria necessary to make informed decisions on overcoating or not overcoating an aged coating system. It will cover rating of adhesion and film integrity, determination of overcoating risk factors and a selection process for appropriate overcoat systems.

Product Number: 41208-400-SG
Author: Mark F Bollinger
Publication Date: 2008
Industry: Coatings
$0.00
$20.00
$20.00

Whether or not overcoating is a feasible alternative to complete removal and repainting depends a great deal on the condition of the existing coating system. The amount of corrosion present, number of coats, total film thickness, adhesion to the substrate, adhesion between coats, and exposure conditions are all factors to consider before making an overcoat or complete removal decision. Due to the economic costs associated with complete removal of aged existing coating systems, including coatings which may or may not contain lead or other hazardous materials, overcoating can offer an economical advantage. However, there are risks involved with overcoating which can lead to costly failures. Properly assessing the condition of existing coatings can help ensure the proper decision is made.  This paper will address conditions assessment, test procedures and criteria necessary to make informed decisions on overcoating or not overcoating an aged coating system. It will cover rating of adhesion and film integrity, determination of overcoating risk factors and a selection process for appropriate overcoat systems.

Whether or not overcoating is a feasible alternative to complete removal and repainting depends a great deal on the condition of the existing coating system. The amount of corrosion present, number of coats, total film thickness, adhesion to the substrate, adhesion between coats, and exposure conditions are all factors to consider before making an overcoat or complete removal decision. Due to the economic costs associated with complete removal of aged existing coating systems, including coatings which may or may not contain lead or other hazardous materials, overcoating can offer an economical advantage. However, there are risks involved with overcoating which can lead to costly failures. Properly assessing the condition of existing coatings can help ensure the proper decision is made.  This paper will address conditions assessment, test procedures and criteria necessary to make informed decisions on overcoating or not overcoating an aged coating system. It will cover rating of adhesion and film integrity, determination of overcoating risk factors and a selection process for appropriate overcoat systems.

Product tags
Also Purchased
New Splash Zone Sulfur Containing Polyamidoamine Epoxy Type Coating
Available for download

New Splash Zone Sulfur Containing Polyamidoamine Epoxy Type Coating

Product Number: 41208-403-SG
Author: Jim Byers, Ryan Rose, David Young, Marty Utterback, Mitch Refvik, Leonid Rapoport
Publication Date: 2008
$20.00

This presentation will compare and contrast several anti-corrosive tidal zone coatings developed under a Navy SBIR program. Requirements for the coating included no VOC’s, surface tolerance to chlorides and water, fast cure to avoid washout by tides and waves, and thick build properties. Various trials of the material on dock sheet pilings and cooling tower fallout zones will be illustrated as well as accelerated lab test data.
Developments in Testing Standards and Test Equipment for Discontinuities (Porosity) in Coatings
Available for download

Developments in Testing Standards and Test Equipment for Discontinuities (Porosity) in Coatings

Product Number: 41208-416-SG
Author: John Fletcher
Publication Date: 2008
$20.00

Testing cured coatings for flaws and defects is often a crucial part of the acceptance process for a coating assessed against its specification. This is particularly the case for pipeline and storage tank coatings and for coatings applied for corrosion protection, where discontinuities in the coating can lead to premature failure. 
Odor and Corrosion Problems in Wastewater Collection Systems and Treatment Plants: Two Related Issues Requiring Distinctly Separate Control Strategies
Available for download

Odor and Corrosion Problems in Wastewater Collection Systems and Treatment Plants: Two Related Issues Requiring Distinctly Separate Control Strategies

Product Number: 41208-435-SG
Author: Randy Nixon
Publication Date: 2008
$20.00

Odor control systems are critical to handling and treating foul air in wastewater collection systems and treatment plants. However, odor control systems do not stop corrosion related to biogenic sulfide formation of sulfuric acid as some engineers would have you believe. Conversely if you have an odor problem you also typically have a corrosion problem, and each problem requires separate control strategies.
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