PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram
Search the site

 

Get the latest FREE eResource Blasting Resource Guide Download Now

F-Files: Mechanisms of Failure
The Case of the Sliding Lining

From JPCL, December 2011

More items for Quality Control

by Richard A. Burgess, KTA-Tator, Inc.

In this month's F-Files, the application of a liner to the interior of a demineralized water storage tank was stopped mid-way through the process because of dramatic defects in the applied film. An independent assessment was conducted to determine why the liner material exhibited runs, sags, fingering, and "sliding" separation during installation....
(Login to read the full article)

   

Tagged categories: Coating failure; Epoxy amine; Runs, sags, curtains or "sliding"; Steel; Tank interiors; Water Tanks

Comment from Keith Holdsworth, (1/17/2012, 10:24 AM)

This will be experienced more and more as regulations force VOC content lower in coating materials. A substrate temperature of 48 degrees is low and severly hinders build charateristics during application. In the older solvent based products the solvent evaporation rates assisted in build characteristics while evaporating from the coating material during application. Hence various specific blends for certain linings. In this instance a job site heater large enough to maintaine a steel substrate temperature to the entire tank at a minimum 65 to 75 degrees and controlled mixing and storage area to maintain the coating materials at the higher end of the recommended storage temperature would have prevented most of this. The "fingers" which were mentioned is an indication they were dealing with inadequate pressures at the spray tip and heavier than normal viscosities. The running and sliding is an indication of material beyond its pot life or more likely due to low substrate temperatures. The article doesn't mention pump ratio or flow rates nor does it mention tip sizes utilized during the spray operation. Based on the critical nature of the lining to the plant operations I would have recommended the entire shell and floor have the previous lining removed and replaced competently.


Comment from Steve Stroud, (1/18/2012, 11:22 AM)

Every painter, that applies exotic coating, should read this article. Often, in the field, specific manufacture instructions are viewed as being trivial, over cautious or just "rhetoric" to cover the manufacturers behind. This article serves to remind us of the consequence of less than a "professional" approach to our craft.


Comment from Doyle Menard, (1/19/2012, 10:14 AM)

It's seams to me that a lot of this problem could had a been solved up front, if 3rd party inspection had been involed during the started of the project.


Comment Join the Conversation:

Sign in to our community to add your comments.

Advertisements
 
Fischer Technology Inc.
 
MP0R with rotating display screen
 
Automatic rotating display screen just like your smart phone. Click for Video
Call 800-243-8417
 

 
KTA-Tator, Inc. - Corporate Office
 
KTA Online
Instrument Catalog
 
• Any Manufacturer
• Any Instrument
• Any Time
Visit www.ktagage.com
Or call 800-582-4243
 

 
SAFE Systems, Inc.
 
Portable Blast &
Recovery Equipment
 
Trailer or skid mounted blast and recovery equipment. Systems designed for maximum versatility, environmental compliance
and overall cost savings.
Call 1-800-634-7278
 

 
SEMicro Division, M.E. Taylor Engineering, Inc.
 
Coatings Adhesion Testers
 
The PATTI® accurately measures the bond strength between coating & substrate. Outfitted properly, the surface can be rough, porous, or curved & >10K psi strong!
 

 
Mitsubishi Gas Chemical America
 
Performance Amine 1,3-BAC
 
A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.
 

 
Tarps manufacturing, Inc.
 
QUALITY MADE IN AMERICA —Available near you!
 
CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.
 

 
HoldTight Solutions Inc.
 
NO FLASH RUST - NO CONTAMINANTS
 
Our HoldTight®102 salt remover & flash rust
preventer prevents flash
rust by removing surface contaminants. Contact us
for your nearest distributor.
(800) 319.8802 sales@holdtight.com
 

 
Sherwin-Williams
 
Sherwin-Williams Oil & Gas App
 
Our coatings and linings expertise available 24/7, allowing you to explore the best Sherwin-Williams solutions for oil refineries, shale drilling sites, and offshore. Android users
click here. Download today!
 

 
Corrosion Probe, Inc.
 
From Detection to Correction
 
Corrosion Probe, Inc. has the Most Concrete Coatings Experience and Expertise. Contact us today at
860-767-4402, www.cpiengineering.com
 

 
Polygon
 
POLYGON - Temporary Humidity Control
 
We specialize in innovative climate control solutions for industrial painting, utilizing alternative energy sources and combining desiccants with heating or cooling.
 

 
 
 
 

Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings 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