PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 

Download our free e-book! Quality Control

Problem Solving Forum

| More

November 25 - December 6, 2013

During a week of heavy rain, we painted the interior of a heated concrete building. The paint blistered badly a week later on the walls with an outside exposure. What’s the best way to remove the coating, prepare the surface, and recoat to prevent future blistering?


Selected Answers

From Car F. of Municipal City on December 3, 2013:
Before doing anything on the INSIDE, I would investigate whats on the outside walls and what kind of waterproofing was applied [if any] to the exterior walls. You seem to indicate that the walls NOT facing the outside were fine, so this may point  to a problem related to the exterior walls and not necessarily to the actual coating. Concrete is not impervious, and water and moisture will migrate, sometimes a great distance.

From juan hurtado of International Paint on November 27, 2013:
You can also remove the coating by blasting with with crushed  walnut shells, which is a lot faster than soda blasting.And I would also recommend  checking the concrete for moisture.

From Michael Quaranta of OPERATIONS 40 on November 25, 2013:
Well, for the first element of searching for a response, what kind of coating was used? Probably the heated concrete building was very high in interior humidity, and if you used the standard epoxy, it was doomed for failure. Without knowing what coating was used, it becomes a guess about the best the removal process. Soda blast would be slow but perhaps the best. Next, use a water-based epoxy, and either spray of roll that coating (colors available) on the concrete wall. The pot life is more than 2 hours and the cure is razor-proof after 24 hours.

Please sign in to submit your answer this question    

Tagged categories: Blistering; Coating failure


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

Novetas Solutions
Abrasive Blasting near or over water?

100% Recycled Glass! NO Arsenic, Beryllium or other Toxic Metals! Great White Metal Finish and Safer than Slags! Call us at 866-775-6226


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.


Blastman Robotics Ltd.
Robotic Blast Cleaning

Replace manual blasting with new Blastman robot models. Contact us to boost your production and save costs!


Safway Services
Superior Suspended Access with QuikDeck®

Get improved platform stability with QuikDeck®. Open workspace designed for fast installation and safety. Easily moved to reduce cost. Safe to the environment.


Carboline Company
Fireproofing Solutions

Pyroclad® X1 Thermo-Lag® Pyrocrete® – protecting against hydrocarbon and jet fires, explosions, and cryogenic spills.


Blastox/The TDJ Group, Inc.
Blastox - One Step
Lead Abatement

Don't waste money on added labor steps with other methods. Don't mix, meter or apply at the job-site. Avoid strict hazardous waste rules.
Let your painters paint


Clemco Industries Corp.
Powerful Protection in a Small Package

Mounts inside blast helmet, alerts operator to dangerous breathing-air condition by audible, visual, and vibratory alarms. Easily calibrated, battery operated.


HoldTight Solutions Inc.
NO FLASH RUST -
NO CONTAMINANTS

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 sales@holdtight.com


DeHumidification Technologies
HUMIDITY PROBLEMS?

DH Tech has the most innovative and reliable equipment available to
control humidity efficiently
and effectively.
IT'S UNDER CONTROL!


Novatek Corporation
Novatek Corporation, Dustless Coatings Removal

Strip, clean and profile all dust free! Comply with new lead standards. Contact today: (866) 563-7800

 
 
 
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 PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2000-2016, 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 webmaster@paintsquare.com