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
 
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.
 

 
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
 

 
SABRE Autonomous Solutions
 
Quality
 
The ALPHA1 provides a consistent finish day-in
day-out; job to job.
 

 
SAFE Systems, Inc.
 
Portable Dust Collectors for Tough Environments
 
Trailer and skid-mounted models in numerous sizes, powered by electric and/or diesel. Sloped roofs, multiple dust inlets, high static, dampered fans. Lockable power & drive compartments.
 

 
Fischer Technology Inc.
 
FISCHER Expands Corrosion Product Line
 
Rounding out Fischer’s extensive line of products for measuring protective coatings in the corrosion industry is the new ultrasonic wall thickness gauge UMP series.
 

 
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.
 

 
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.
 

 
NLB Corporation
 
NLB Sure Shroud: Greater Protection and Flexibility
 
NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.
 

 
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.
 

 
Jotun Paints Inc.
 
Jotun Jotachar 1709
 
Mesh-free passive fire protection epoxy designed to protect against hydrocarbon pool fire scenarios for up to four hours as defined in the ANSI/UL1709 standard.
 

 
 
 

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