| Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise


Download our free ebook on Abrasive Blast Cleaning

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:

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

New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films

Carboline Company
Fireproofing Solutions

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

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.

Jessup Manufacturing Company
More Traction for Extreme Marine Conditions

Jessup Safety Track® 3800 Military Grade peel-and-stick non-skid tapes and treads provide extra slip resistance for decks. MIL-PRF-24467C Type XI, Black & Gray.

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.

International Paint/AkzoNobel
Light Duty Protective Coatings

Check out our expanded line of alkyd, acrylic and waterborne epoxy coatings.

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).

Polyval Coatings
Polyflex® Polyurea Linings

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

IBIX North America
Portable Powder Coating System

All-in-one skid mounted system for on-site repairs. Durable coating for industrial, structural steel, pipeline and marine applications. 727-322-4611

Montipower, Inc.
The MBX Bristle Blaster

Get a 2.7 to 3.3 mil profile and a Near White Metal Clean. For info visit or call 877 629-8777

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   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us

© Copyright 2000-2015, 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