PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

Sherwin-Williams


Problem Solving Forum

| More

April 1 - April 7, 2013

What is the effect of the wind-chill factor on the curing of epoxy and PU when temperatures are similar?

More items for Coating Materials


Selected Answers

From Tom Schwerdt of Texas Department of Transportation on April 2, 2013:
     There is not really a simple answer. Faster airflow will allow faster solvent evaporation and more rapid initial set. With solvent out of the way, actual curing should move along moderately faster., and significantly faster in the case of some epoxies with ketone solvents. (The curing agent would be partially or fully tied up as a ketamine until the solvent is gone.) Thermal mass of the substrate (in most circumstances) should keep the coating temperature pretty close to ambient. One possible confounding factor for polyurethanes:  higher wind speed will bring more ambient moisture in contact with the PU, possibly reacting with the isocyanate.

From Carl Thompson of Hill Brothers on April 1, 2013:
     Any organic reaction is slower with a wind chill factor, even though temperatures are the same.

From Tom Koep of Coatings Unlimited Inc. on April 1, 2013:
NONE

From Jay Barstow of Aeroflor Coating Services on April 1, 2013:
     This is a trick question ... unless there is something to evaporate, temperature is temperature (though air flow could accelerate temperature drop to ambient, but in a thin film that really wouldn't be a factor). Solventless epoxy and urethane? No change. I suppose a solvent flash due to air flow could lead to a surface cure of a solvented product and the resultant entrapment of solvents. An ambient of 50 or so will effectively stop the curing process, but this isn't a "wind chill" effect. Sooooo ... April fools?!?

Please sign in to submit your answer this question    

Tagged categories: Curing; Epoxy; Temperature


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

Advertisements
 
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
 
New product: Carbozinc® 608 HB
 
Introducing a new high build zinc-rich primer that can save you time and money by eliminating the epoxy intermediate coat!
 

 
Industrial Vacuum Equipment Corp.
 
Hurricane Vacuums
& Dust Collectors
 
Vacuum and dust collector hose, filters and related accessories.
IndustrialVacuum.com
 

 
Tarps manufacturing, Inc.
 
QUALITY MADE IN AMERICA —Available near you!
 
CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.
 

 
Jotun Paints Inc.
 
Jotun Jotachar 1709
 
Mesh-free passive fire protection epoxy designed to protect against hydrocarbon pool fire scenarios for up to four hours as defined in the ANSI/UL1709 standard.
 

 
SAFE Systems, Inc.
 
Custom blast rooms
by SAFE Systems
 
Don't waste time and money "making do" with a "standard" design. Let us work with you to design and build the system that best fits your requirements.
Call 1-800-634-7278
 

 
CHLOR*RID International Inc.
 
SOLUTIONS THAT WORK
 
Companies that invest in corrosion control use CHLOR RID products
  • Soluble salt removal liquid
  • Test kits to verify contamination levels
  • Surface passivation to hold the blast
INFO@CHLOR-RID.COM 800.422.3217
 

 
Blastox/The TDJ Group, Inc.
 
Blastox® - One Step Lead Abatement
 
Sandblast additive delivered to jobsite pre-blended to eliminate hazardous abrasive wastes. Why mix, meter or apply at the job-site? Blast with ease and
Let your painters paint!
1(800)-252-7869
 

 
Sauereisen, Inc.
 
SewerGard® 210XHB
 
• 300 mils in a single coat by plural component equipment
• Fast Setting
• 100% Solids Epoxy
• Chemical-resistant barrier for municipal wastewater environments
sauereisen.com
 

 
KTA-Tator, Inc. - Corporate Office
 
KTA-TATOR LABORATORY SERVICES
 
• Coating failure analysis
• Independent testing
• Accelerated weathering testing
• Abrasives Testing
• Oil & Gas Material Qualification
• A2LA Certificate #2455.01
Contact: Rob Leggat
at 412-788-1300 x176
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

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