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




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.

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.

KTA-Tator, Inc. - Corporate Office
KTA-Tator EH&S Services
• Ambient & Worker Exposure Air Monitoring
• Safety & Health Program Development
• Lead Paint Assessments
& Specifications
• Health Hazard & Jobsite Safety Assessments
Call 1-800-532-3633

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.
Our HoldTight®102 salt remover & flash rust
preventer prevents flash
rust by removing surface contaminants. Contact us
for your nearest distributor.
(800) 319.8802

Bullard Made in the USA

US Minerals
Hit Harder. Clean Faster.
Black Diamond abrasive products are the toughest, most effective blasting media and supply the superior power you need to get any job done.

Absolute Equipment/Grand Rental Station
We have Tier 4 Equipment including Air Compressors & Generators for Sale & Rent! Your job may now require Tier-4. or Call 412-931-6655.

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.

Graco Inc.
Graco EcoQuip 2: Experience the Difference
While others claim their equipment is the same, none of them compare to Graco’s EcoQuip 2™ Vapor Abrasive® blasting line. Visit to learn more.


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

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL

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   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us