| 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.

Fischer Technology Inc.
Measure TSA Coatings on Stainless Steel

The PHASCOPE® PMP10 from FISCHER precisely measures thermally sprayed aluminum (TSA) on stainless steel.

HoldTight Solutions Inc.

Our HoldTight®102 salt remover & flash rust preventer prevents flash
rust by removing surface contaminants. It has no equal; only wannabees.
Contact us for your
nearest distributor.
(800) 319.8802

DeFelsko Corporation
A Smart New Way to Measure

PosiTector SmartLink and free mobile app turns your cell phone or tablet into a virtual PosiTector gage.

Nationwide Overspray
Profession Overspray Removal Services

The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.

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.

KTA-Tator, Inc. - Corporate Office
Coatings Inspection

Any structure, any height, any place - A qualified coatings inspector is always available. Call 1-800-245-6379.

Jessup Manufacturing Company
More Traction for Extreme Marine Conditions

Jessup Safety Track® 3800 Military Grade peel-and-stick non-skid tapes and treads provide extra slip resistance for decks. MIL-PRF-24467C Type XI, Black & Gray.

Clemco Industries Corp.
Global engineering-trusted solutions

For more than 70 years, Clemco has provided the highest quality blast equipment with a total commitment to comfort and safety.

International Paint/AkzoNobel
Premium Low VOC Polyurethane Finish

AkzoNobel introduces Interthane 990V as a 250 g/l HAPS free polyurethane with outstanding color and gloss retention. 990V is fast curing and applicator friendly.

Novetas Solutions
Number 1 Crushed Glass Abrasive in America!

6 NEW plants coast to coast! Safe for environment, 100% recycled glass. White Metal Finish! No unsafe toxins like Beryllium & Arsenic!
Call 866-775-6226

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   |   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