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

 

Free Download of our eBook on Overcoating Bridges and Other Structures

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

Carboline Company
Fireproofing Solutions

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


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


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.


Hempel (USA) Inc.
Wider range of Hempel Protective Coatings now approved by Norsok.

Proven high performance products that protect your assets. Contact us today at protective@hempel.com to find out more.


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.


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.


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


Desco Mfg. Co., Inc.
DUST-FREE SOLUTIONS For Lead Abatement

Tools operate at levels well below OSHA limits for hazardous material removal; meet SP11 specifications when required and low vibration tools increase productivity.


Novatek Corporation
Dustless Coatings Removal

Strip it, clean it, and profile it,
all dust free! High production
rates and Blast like finishes.
Comply with new lead
standards.


Advanced Recycling Systems
ADVANCED RECYCLING SYSTEMS (ARS)

Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!
(330)536-8210

 
 
 
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