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

 

Problem Solving Forum

| More

August 23 - August 29, 2010

What is the best method of testing for moisture content in concrete masonry unit (CMU) walls prior to application of coatings?


Selected Answers

From Glenn Summers of Conselcor Inc. on November 10, 2010:
The most effective test of moisture in concrete is the interior relative humidity testing. Almost all manufacturers of floor coverings and paints will require 70% or less before allowing coverage. Bear in mind that is not the final step one should take prior to a coating or install of a flooring system. Unless you render the substrate Hydrophobic by use of a pore blocking penetrating sealer, you will still have a surface capable of absorbtion of contaminates and moisture and migration of internal chemistry out to a surface. Absorption begets rebar corrosion that may be the slow death, while migration outward will yeild ASR and effloresence. I use a penetrating sealer the comes with a 15 year warranty for waterproofing and have Never been disappointed!

From William R. Stein of S & B Coatings-Floors on August 23, 2010:
Cheapest method is taping a 3X3 plastic film to the wall and waiting 24 hours.

Please sign in to submit your answer this question    

Tagged categories: Concrete; Humidity and moisture


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

SSPC: The Society for Protective Coatings
http://www.sspc.org/

Join SSPC and Enhance
Your Career !


BASF
New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films basf.us/industrialcoatings
polyorders@basf.com
800-231-7868


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


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


WINOA Group
W Abrasives - Surf Prep Pack

Experts in surface preparation are not working only on greens. To discover the SURF PREP PACK dedicated to experts, come to visit us during the GIFA (Hall15 - D14).


Carboline Company
Fireproofing Solutions

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


Axxiom Manufacturing
Revolutionary Units

By integrating Schmidt's Aftercoolers with our blast pots, these systems remove moisture from air and minimize equipment footprint on jobsite.
Call 1-800-231-2085


CHLOR*RID International Inc.
Free Webinar

Learn about soluble salts, along with a discussion on allowable levels.
More information at
www.chlor-rid.com,

800-422-3217


Atlas Material Testing Technology

Helping You Put Your Products To The Test

• Outdoor Accelerated
Weathering
• Laboratory Testing
Services
• Accelerated Weathering
Instruments

www.atlas-mts.com atlas.info@ametek.com


Mitsubishi Gas Chemical America
Performance Amine 1,3-BAC

A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.

 
 
 
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 2000-2015, 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 webmaster@paintsquare.com