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

October 10 - October 18, 2015

What are the criteria for selecting coatings for application during extreme (atmospheric) heat?



More items for Coating Application


Selected Answers

From Antonio Leal of IMMT-Institut Macaé Tecnology and Metrology on October 23, 2015:
It's hard to answer this question without other information such as values and ranges of these temperatures, environments where they are located, such as marine, forest, or urban; and equipment usage limitations (Is it  necessary to clean to Sa 3?).

From Warren Brand of Chicago Coatings Group on October 15, 2015:
Most paint and coating materials have a broad range of allowable application temperatures, which fall well within whatever ambient conditions one would find. As Jeremi pointed out, however, surface temperature is critical, although if you're using a polyurethane, the ambient humidity (or lack thereof) can be a serious factor. Lastly, if you're dealing with extreme heat, one would assume it's sunny out. THIS is of great concern. You can easily have one side of an asset exposed to direct sunlight with a surface temp of 140 F (which may be too high for application at all), where the other side (in the shade) may be 95 F. Lastly, the surface temp will have a profound impact on the recoat window, if you're using a multi-coat system. When we work on projects like this, whenever possible, we try to specify a single-coat system, or, if necessary, a compatible primer with a very long recoat window (which typically translates into a longer-than-typical recoat window with high temperatures).

From Jay Barstow of Aeroflor Coating Services on June 18, 2012:
     Pot life for one (pre-cool). Heat can be good in that it reduces viscosity and increases wet-out, but if the substrate is concrete, trapped air can off-gas (coat in cool-down cycle), or solvents can flash off the surface too quickly, leading to entrapment (especially prevelant in windy conditions). Recoat window can be shortened significantly as well (check data sheet). In addition, my guys sweat on the substrates as well, which makes me none too happy.

From Jeremi Day of Allphaz Inspection Services on June 11, 2012:
     Surface temperature is what is used to determine service life, cure times, overcoat or recoat intervals, service compatibility, etc. Therefore, selection of coatings should be based on surface temperature rather than atmospheric temperature. The selection should, however, take into account the atmospheric temperature to identify pot life limitations, LEL limits, and the general characteristics of the coating and how it will react in certain atmospheric conditions, such as whether or not to use tropical cure formulations of the product as apposed to cold cure versions. More clarity to the question is needed, in my opinion.

Please sign in to submit your answer this question    

Tagged categories: Coating selection; Paint application; Temperature


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

Carlisle Fluid Technologies
Built for Tough Jobs

From Epoxies to Urethanes to other high solid coatings, the new Binks Airless 75 delivers a great finish using an ergonomic design. Visit binks.com for more information.


N.T. Ruddock Co.

Our Abrasives Hold Up Under Pressure

N. T. Ruddock focuses on abrasive selection, equipment evaluation, equipment maintenance & reduction of abrasive consumption. Other services include Screen Analysis & Background Radiation Testing.


NACE
The latest in Protective Coatings Technology

Examines every generic
type of protective coating
in detail, along with advantages and disadvantages of each. Add it to your library in print or ebook!


Specialty Products, Inc. (SPI)
Polyurea & Polyurethane Spray Foam Training

SPI is committed to industry leading technical training for polyurea & polyurethane spray foam professionals. Attendees receive hands-on, in-depth training for using and troubleshooting plural-component equipment, spray guns, machine hoses & parts.


Titan Tool, Inc.
Power, Precision, Reliability. Titan PowrCoat Series.

PREMIUM COMES STANDARD. Power, precision and reliability are built into each unit including Severe Service which means twice the life with no maintenance. For maximum uptime, durability and ease of use, nothing performs like the PowrCoat™ from Titan.


Nationwide Overspray
Profession Overspray Removal Services

The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.


US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.


Desco Mfg. Co., Inc.

Dust - Free Surface Prep
Made EASY!

Efficient-Fast clean/remove
Advanced Containment
Safe - Well Below OSHA
Yes! - Innovative Solutions!
DESCO Mfg.Co., Inc.
www.descomfg.com
800-337-2648


RBW Enterprises, Inc.
Robotic Blast Cleaning & Painting News

RBW Enterprises has the only portable blast cleaning machine that can clean both horizontal and vertical surfaces, and pipe See more Videos at www.rbwe.com


CHLOR*RID International Inc.
Hold*Blast

*Provides outstanding
  performance
*Easy to use and only pennies
  per square foot
*Works with poor quality
  water
*Use for mist blasting, vapor
  blasting, wet blasting and
  UHP WJ
*Leaves no residue and
  provides excellent adhesion.
  www.chlor-rid.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