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

 

Download our free e-book! Overcoating bridges and other structures.

Problem Solving Forum

| More

October 28 - November 1, 2013

During a week of heavy rain, we painted the interior walls of a heated concrete building. On the interior of walls that had an outside exposure, the paint blistered badly a week after the rain subsided. Could the rain have caused the blistering and, if so, how?

More items for Quality Control


Selected Answers

From vikram khanna of falcon international on November 29, 2013:
For above-grade, exposed concrete walls, a possibility to protect against moisture ingress is to use silane/siloxane-based treatments after thorough joint sealing and surface crack repairs, which may lessen the chances of rain-water penetration. Plumbing conduits and vents are other possibilities of sites for leakage, along with capillary rise possibilities, as pointed out by Michael.

From tim hady of tjhady painting on October 30, 2013:
The heat inside the building caused the moisture on the outside exposure walls to penetrate through the walls and blister the paint.

From Michael Quaranta of OPERATIONS 40 on October 29, 2013:
Very interesting situation and friendly response from Mr. Felisario. I don't agree with the rain developing the water through the concrete wall. How old is the building? What is the makeup of the concrete wall and how thick? What is the geography around the building? Is the exterior wall exposed or buried in the surrounding soil? Is there a rain gutter installed on the building and suitable draining around the building? Was there any prior coating on the interior wall? What "paint" was used and how many coats were applied? There is a superior water-based epoxy coating product on the market that would easily solve this interior wall problem.

From Samuel Felisario of PT RAJAWALI HIYOTO on October 28, 2013:
I presumed that heating is inside the room and the coating used is either solvent-based or solvent-free, therefore impermeable to water-vapor. The heat inside induces evaporation of water coming from the outer wall, leading to blistering. Try to use more permeable systems, like water-based systems,  including water-based epoxy.

Please sign in to submit your answer this question    

Tagged categories: Blistering; Coating failure; Concrete; Interior coatings


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

Advertisements
 
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
 

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

 
SABRE Autonomous Solutions
 
Safety, Productivity, Quality. Robotic Blasting
 
Learn how this simple to use, field deployed, automatic robot is eliminating hazards in major confined, cluttered and complex surface preparation projects.
 

 
SAFE Systems, Inc.
 
SAFE Systems'
Blast Lights &
Deadman Switches
 
Halogen or LED blast lights available with our NEW urethane bumper. Switches available in many colors for color coding your hoses.
 

 
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
 

 
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 1-800-245-6379
 

 
DeFelsko Corporation
 
PosiTector SHD Shore Hardness Durometer
 
PosiTector SHD measures the hardness of non-metallic materials. Features a measurement timer, auto ignore mode and internal memory. Shore A or D available.
 

 
BASF
 
New resins from BASF will have metals loving water!
 
Excellent corrosion resistance, low VOC, high gloss, thin films www.basf.us/industrialcoatings dpsolutions@basf.com 800-231-7868
 

 
Industrial Vacuum Equipment Corp.
 
Hurricane Vacuums
& Dust Collectors
 
Vacuum and dust collector hose, filters and related accessories.
IndustrialVacuum.com
 

 
Clemco International GmbH
 
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.
 

 
 
 

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