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

 

Download our Free Top Contractors e-Resource Guide.

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

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. Android users
click here. Download today!


Carboline Company
Fireproofing Solutions

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


PPG Protective and Marine Coatings Group
We Protect and Beautify the World

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


Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors

Vacuum and dust collector hose, filters and related accessories.
IndustrialVacuum.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.


Hempel (USA) Inc.
Trusted worldwide for advanced protective coatings

Trusted worldwide
for advanced
protective, coatings
–Full range of 
  advanced coatings
–Optimised application
–Fast, reliable service  worldwide. Contact us at oilandgas@hempel.com


Absolute Equipment/Grand Rental Station
TIER 4 EQUIPMENT

We have Tier 4 Equipment including Air Compressors & Generators for Sale & Rent! Your job may now require Tier-4. www.absoluteequip.com or Call 412-931-6655.


DeFelsko Corporation
PosiTector SHD Shore Hardness Durometer

PosiTector SHD measures the hardness of non-metallic materials. Features a measurement timer, auto ignore mode and internal memory. Shore A or D available.


Clemco International GmbH
Global engineering-trusted solutions

For more than 70 years, Clemco has provided the highest quality blast equipment with a total commitment to comfort and safety.


Bullard

The Next Generation
of Blasting

• Lightest
• Coolest
• Most Comfortable
• Most Dependable

 
 
 

Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design 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   |   Site Map   |   Search   |   Contact Us