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

 

Learn while you earn.

Problem Solving Forum

| More

April 25 - May 1, 2011

When specifying coatings for maintenance repainting of structural steel, under what conditions is it acceptable to settle for a surface-tolerant system, and when is such a system unacceptable?



More items for Coating Materials


Selected Answers

From Antonio Tolotto of Boat S.P.A. on April 28, 2011:

     First of all, I look at what the specification says. If there is no specification and I must choose, my idea is to avoid poor surface preparation for immersion service.

      Second, I try to use this system for maintenance of external, non-immersed surfaces, providing a general deep cleaning, because the main quality of good surface-tolerant coatings must be good adhesion on  old coatings and on steel, of course. It is recommended to use such coatings for the maintenance of interiors, since they generally have high solids. Last, but not least, I try to choose a reputable supplier, because very often surface- tolerant coatings are three wonderful names telling nothing.

From M Ehab of North Valley on April 7, 2012:
      If the structure is complicated, better  go for a surface-tolerant anticorrosive. In all cases, epoxy mastic is the best surface-tolerat coating. It is best is to apply an epoxy mastic anticorrosive with aluminium or glass flake or micaceous iron oxide flakes at DFT of 150 microns (6 mils) minimum. Some epoxy surface tolerant coatings are designed for M+R (i.e., can be applied by Brush at higher DFT). Keep in mind that improved surface treatment (blast cleaning to Sa 2½) will improve the performance.

Please sign in to submit your answer this question    

Tagged categories: Coating selection


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

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.


Wasser High-Tech Coatings Inc.
Polyflex® Polyurea Linings

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


Jotun Paints Inc.
Jotachar JF750 - The Time Saving Solution

The only mesh free solution for jet fire scenarios. Jotachar saves installation time and material costs - the next generation of epoxy passive fire protection.


PPG Protective and Marine Coatings Group
Bringing innovation to the surface.™

PPG Protective & Marine Coatings is widely recognized as a world leader in protective and marine coatings, developing innovative, cutting-edge products and services.


Hempel (USA) Inc.
Hempel Protective Coatings

Protect your investment from the inside out. With IMO, PSPC approved tank coatings solutions we give you tough, long lasting results that are tailored to meet your exact needs. Contact us at offshore@hempel.com today.


Sherwin-Williams
Sherwin-Williams Oil & Gas App

Our coatings and linings expertise available 24/7, allowing you to explore the best Sherwin-Williams solutions for oil refineries, shale drilling sites, and offshore. Download today!


Carboline Company
Fireproofing Solutions

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


Covestro Deutschland
What keeps contractors one layer ahead when finishing their projects?

The answer: Pasquick®. Thanks to Pasquick®, one layer of coating is saved – resulting in faster workflows and earlier project finishing. Learn more.


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

 
 
 
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