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

 

Advertisement

PaintSquare


Problem Solving Forum

| More

May 23 - May 29, 2011

What percentage of deterioration is acceptable at a one-year warranty inspection of water tank linings before a contractor must repair the coating job?

More items for Quality Control


Selected Answers

From Erik Andreassen of CFPS on August 25, 2011:
     No percentage is acceptable where an internal lining has been carried out. The warranty should have been a back-to-back warranty with the coating supplier for at least 3-5 years, but once defects are found, it is better to up-grade and replace the complete system. Request a report also from the coating supplier, as to the cause of the breakdown after such a short period of time.

From Keith Holdsworth of Eastern Tank on June 2, 2011:
     It's not uncommon for some areas to show after one year of service, especially if the previous substrate had extensive pitting or rough surface due to corrosion. It is important, however,  after  one year of service, that the lining is inspected and areas found are touched up, repaired and retested to ensure adequate repairs were made. Holiday testing isn't always 100% perfect, especially in extremely large vessels with prior steel deterioration.

From Steven Ivanick of LA City Depart. of Water and Power on June 2, 2011:
     You needed to include in your specification a one-year inspection warranty to repair all holidays that are present after one year. You should also install a CP system to get maximum life out of your steel water storage tank. By monitoring your CP system, you can determine how well your protective coating system is doing.

From jesse chasteen of schriener construction on June 1, 2011:
     If the final inspection was done correctly and meticulously, you should expect zero deterioration after one year service life. Most coating manufacturers stand by their product for at least one year and warrant product to provide serviceability for that time frame if applied correctly.

From Billy Russell of D&R COATING INSPECTION on May 31, 2011:
No percentage of deterioration is acceptable at that point.

From Tom Schwerdt of Texas Department of Transportation on May 24, 2011:
Zero.

From remko tas of Futuro SRL on May 23, 2011:
     No deterioration is acceptable after one year in a steel water tank below the waterline, and repairs should be done inmediately. If not, damage to the sustrate will only get worse at a fast pace. Above the waterline, you could apply some flexibility for minor flaws.

From Lalit Mehra of Quality Linings & Painting, Inc. on May 23, 2011:
Zero.

From Daniel Luder of Woodside on August 23, 2011:
     Zero. Heavily corroded areas should be mapped and brought to the owner's attention to allow for substrate repair prior to coating application. If no remedial actions are taken at this point, it remains a weak point. A paper trail is important in case people leave jobs. Each tank will have a inspection record file with all local wall thinning recorded for compliance with I.E. API 653 CODE.

Please sign in to submit your answer this question    

Tagged categories: Coating inspection; Linings; Water Tanks


Current PSF Question | Submit a PSF Question | Full PSF Archive

Advertisements
 
KTA-Tator, Inc. - Corporate Office
 
Instrument Service Department
 
Are you a QP certified contractor? KTA’s Instrument Service Department can help keep you compliant!
Click or call 1-800-KTA-GAGE.
 

 
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
 

 
Detail Masters
 
Overspray Removal
 
We offer professional, turnkey service and unparalleled quality!
Our process can save hundreds— even thousands of dollars. It's fast, environmentally safe and 100% guaranteed.
 

 
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!
 

 
Tnemec Company, Inc.
 
Online Coating Courses from Tnemec
 
For decades, Tnemec has offered its expertise to clients presenting face-to-face coatings courses. Now, these presentations are available to anyone for CEUs at Tnemec University.
 

 
Fischer Technology Inc.
 
NEW Protective Coating Inspection Website
 
Click Here!
 

 
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.
 

 
DeFelsko Corporation
 
PosiTector SST Soluble Salt Tester
 
Measures the concentration of soluble salts on metal surfaces. Use with all Bresle patch types including the reusable, adhesive-free PosiPatch.
 

 
W Abrasives
 
How to reduce your blasting cost ?
 
W Abrasives is able to reduce the global blasting cost to its customers by offering specific ranges of products and technical support dedicated to their application.
 

 
Strategic Materials Inc.
 
www.truabrasives.com
 
TruAbrasives™, a clean crushed glass abrasive superior to other abrasives for performance, health, and environmental benefits.
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

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