PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 


August 22 - August 28, 2011

In your experience, what is the most common cause of premature coating failures?



More items for Quality Control
Answers Votes
Poor workmanship 76%
Incorrect specification 12%
Unforeseen exposure condition (due to design defect, for instance) 10%
Defective coating material 2%


Suggest a topic

   

Tagged categories: Coating failure

Comment from Glenn Summers, (8/25/2011, 6:36 AM)

Speaking only as it relates to concrete substrates; most specifications do not go far enough to insure that a concrete is properly treated, prior to the coating application. If a concrete is not "Stabilized" prior to coating, the Gel-Pore/Capillary system of the concrete will remain Open and Active to expell a concrete internal chemistry for years to come. Often, a specification is written to take in to account Harsh Service Environments as it relates to contaminates entering a concrete matrix from the exterior of a structure. It is one thing to attempt to protect a concrete by coating the exterior, but this type of specification falls short of a "Durable Surface". Great care and expense of sand blasting, high pressure washes and even acid etching will attempt to obtain longevity of a coating, but do not consider that an unstable concrete will allow moisture vapor to deposit chemicals underneath the best of coatings. When this internal chemistry and moisture migrates out to an atmosphere, coating failures are certain. A specification that doesn't address moisture travel In and Out of a concrete substrate will lead to a coating failure, not to mention all of the other deleterious events that occur to a concrete. When Carbonation is allowed to reduce the internal pH of a concrete below 11.5 pH, a coating loss is a minor problem compared to the corrosion cells that are now allowed to form on the reinforcing steel! At this point, "Another Coat of Paint Won't Help"!


Comment from Chuck Stevens, (8/31/2011, 12:18 PM)

It is extremely Important that the inspection attends the Pre-Job conference to discuss grey area's and how they should be addressed as agreed to by all involved


Comment Join the Conversation:

Sign in to our community to add your comments.

KTA-Tator, Inc. - Corporate Office
KTA-Tator
Coatings Inspection

Any structure, any height, any place - A qualified coatings inspector is always available. Call 800-245-6379.


Elcometer, Inc.
Elcometer 266
DC Holiday Detector

Easily Finds Pinholes, Flaws & Thin Spots; Safer, More Reliable Testing; Voltage-Adjustable Keypad; Dual-Safety Switch On Handle.


Fischer Technology Inc.
MP0R with rotating display screen

Automatic rotating display screen just like your smart phone. Click for Video
Call 800-243-8417


LS Industries
LS Blasters: Optimum Steel Cleaning Efficiency

Simplify surface prep with the precise shot control of LS Blasters. Our blast technology delivers optimum coverage and finish. 800-533-8008


SSPC: The Society for Protective Coatings
http://www.sspc.org/

Join SSPC and Enhance
Your Career !


Julbert, Inc.
"Cost Effective Solutions"

Dust Collectors Available Registered in the State of California PERT–ARB Statewide Program. We deliver to your Jobsite “On Time” “Dust is Not An Option”


Empire Scaffold
Work with a scaffold company you can trust

Empire Scaffold is a full-service scaffold company providing specialized, on-site support for the life of the project, with products & experience to keep your projects up & running, safely.


US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.


Sherwin-Williams
Heat-FLex® Hi-Temp 1200

Improved Corrosion
Resistance
Enhanced Durability
Faster Shop Throughput

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2000-2015, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com