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

 

Download the FREE Equipment and Rental Resource Guide

Problem Solving Forum

| More

March 14 - March 20, 2011

How do admixtures to concrete (hardeners, anti-dust compounds, etc.) affect coating adhesion? What can be done to eliminate or minimize negative effects?



More items for Coating Materials


Selected Answers

From Jorge Lizarraga of International Paint on March 21, 2011:

     Admixtures in concrete will affect coating adhesion in several ways. One of those ways is due to closing the pores of the concrete to make it watertight, closing capillaries, making concrete surface extremely soft and impermeable for coating application.

      Hardeners don´t allow a suitable profile and  anti-dust additives will also reject the coating.  So, if the additive is on the surface of concrete, we can remove it using highly concentrated tensioctives solutions.

     If the additive is penetrated into the concrete, we must  remove the upper concrete, and replace it with new concrete or an epoxy layer. I can obtain a good surface profile in both softened and hardened concrete by using concentrated solutions of clorhidric acid (35%), checking the attack of the acid, and stopping it by washing when the profile is reached. In this way we can minimize the effect of admixtures to concrete.

Please sign in to submit your answer this question    

Tagged categories: Adhesion; Concrete


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

Polyval Coatings
Polyflex® Polyurea Linings

Polyflex™ new Polyurea Geotextile Membrane System has been specifically engineered to protect the environment in containment applications.
www.polyflexlinings.com


Wasser High-Tech Coatings Inc.
Wasser Coatings Protect

Wasser Coatings offer a complete range of Moisture Cure Urethane (NEPCOAT approved) systems in addition to Polyurea membranes and linings(NSF).
www.wassercoatings.com


International Paint LLC

International Paint Engineered Coatings

Learn about our solutions for:
  • Structural Steel
  • Piping & Equipment
  • Storage Tanks
  • Pressure Vessels
  • Secondary Containment


    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.


    Sherwin-Williams
    Sherwin-Williams Protective & Marine Coatings

    With 4,000 distribution points and 3,700+ years of experience, Sherwin-Williams delivers the products, support and expertise you need, right where you need it.


    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


    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.


    Carboline Company
    Hydrocarbon Fire & Jet Fire Protection

    Pyroclad X1 is the latest breakthrough in epoxy based intumescent fireproofing technology


    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


    Termarust Technologies
    Termarust (HR CSA) Chemically Stops
    Active Corrosion

    Arch truss treated with Termarust's (HR CSA) in 2003. This steel arch bridge is rust free on all surfaces including the crevice corroded joints and connections.

  •  
     
     
    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