Problem Solving Forum

| More

November 5 - November 11, 2012

Can efflorescence be removed from integrally colored CMU without damaging the appearance? How?


Selected Answers

From Andres Weber of Chemical Technology Inc. on November 15, 2012:
Phosphoric acid at a low concentration is a great way to solve this problem, too.

From Joseph Berchenko of Arcom on November 12, 2012:
     If CMU is new and there are no leaks or water sources, it may weather off by itself after a while.

From Glenn Summers of Conselcor Inc. on November 12, 2012:
     Yes, it may be removed, and any acidic material should be used sparingly since we don't want an acid to loosen the limestone bond to the fine aggregate. Once removed, a quality penetrating sealer will prevent it from returning.

From web stokes of DMA on November 7, 2012:
     Yes, with a mild acidic solution. Acetic acid works well.

Please sign in to submit your answer this question    

Tagged categories: Concrete masonry units (CMU); Efflorescence; Maintenance + Renovation


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

Advertisements
 
WEFTEC Show

 
KTA-Tator, Inc. - Corporate Office

 
Tarps manufacturing, Inc.

 
AWWA (American Water Works Association)

 
Fischer Technology Inc.

 
NLB Corporation

 
SAFE Systems, Inc.

 
HoldTight Solutions Inc.

 
Sauereisen, Inc.

 
Modern Safety Techniques

 
 
 

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

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   |   Support   |   Site Map   |   Search   |   Contact Us