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

 


D2247 Standard Practice for Testing Water Resistance of Coatings in 100% Relative Humidity

All Standards | ASTM Standards
Search Standards


Click to Purchase and Download this Standard or Test Method

Revision Date: March 21, 2011
Updated On: March 25, 2011
Editorial Change:
 
Water can cause the degradation of coatings, so knowledge of how a coating resists water is helpful for assessing how it will perform in actual service. Failure in tests at 100 % relative humidity may be caused by a number of factors including a deficiency in the coating itself, contamination of the substrate, or inadequate surface preparation. This practice is therefore useful for evaluating coatings alone or complete coating systems.

Tests at 100 % relative humidity are used for specification acceptance, quality control, and research and development for coatings and substrate treatments. Some tests are used for a pass or fail determination at an arbitrary time. A coating system is considered to pass if there is no evidence of water-related failure after a period of time. Other tests are used to monitor degree of failure as a function of exposure time.

Arbitrary pass/fail levels and the test durations required are typically set in other material specific test methods. Users of this practice alone may use the known performance of the controls to set test end points. Another option is to continue the test until all specimens have failed, and use the time to reach failure as a way to differentiate performance.

Results obtained from the use of 100 % humidity tests in accordance with this practice should not be represented as being equivalent to a period of exposure to water in the natural environment, until the degree of quantitative correlation has been established for the coating or coating system.

The test chamber can be a small laboratory cabinet or a room large enough to hold an automobile or a truck. Some automobile manufacturers test completed vehicles in rooms maintained at 100 % relative humidity.

(Back to all Standards)

 
   

SSPC: The Society for Protective Coatings
http://www.sspc.org/

Join SSPC and Enhance
Your Career !


Safway Services
Suspended Access Made Easy With QuikDeck™

The smart choice for suspended access, QuikDeck’s interchangeable, lightweight components make them easy to set up and reassemble when you need to move.


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.


Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors

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


Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Hydro Utility Penstock Overcoated in 1997. Was power washed and overcoated with major cost saving. No environmental impact with Termarust's low LC50 of 41,007 ppm.


DRYCO
Climate Control...delivered.

Temporary climate control equipment. Dehumidifiers,
Heaters, A/C, Power, More…
Call: 866-379-2600


Novetas Solutions
Number 1 Crushed Glass Abrasive in America!

6 NEW plants coast to coast! Safe for environment, 100% recycled glass. White Metal Finish! No unsafe toxins like Beryllium & Arsenic!
Call 866-775-6226


Greener Blast Technologies
Reinventing the Blasting Industry

Greener Blast Technology, Inc. manufactures the most effective slurry blasting system available on the market to date.


Minerals Research & Recovery

HIGH PERFORMANCE ABRASIVES


“Made in the USA!”

Why recycle waste from other countries? Go FASTER, CLEANER, at 1/3 THE COST with MR&R “All-American” Sharpshot®HP!!

WATCH THE VIDEO


CS Unitec
Work Cleaner and Safer

CS Unitec’s Vibro-Lo low-vibration scalers offer high performance for greater productivity & improved operator comfort. Optional dust shroud. info@csunitec.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 2000-2015, 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 webmaster@paintsquare.com