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

 


D4939 Standard Test Method for Subjecting Marine Antifouling Coating to Biofouling and Fluid Shear Forces in Natural Seawater

All Standards | ASTM Standards
Search Standards


Click to Purchase and Download this Standard or Test Method

Revision Date: July 08, 2013
Updated On: July 10, 2013
Editorial Change:
 
5.1 Effective antifouling coatings are essential for the retention of speed and reduction of operating costs of ships. This test method is designed as a screening test to evaluate antifouling coating systems under conditions of hydrodynamic stress caused by water flow alternated with static exposure to a fouling environment. A dynamic test is necessary because of the increasing availability of AF coatings that are designed to ablate in service to expose a fresh antifouling surface. Because no ship is underway continually, a static exposure phase is included to give fouling microorganisms the opportunity to attach under static conditions. After an initial 30-day static exposure, alternated 30-day dynamic and static exposures are recommended as a standard cycle. The initial static exposure is selected to represent vessels coming out of drydock and sitting pierside while work is being completed. This gives the paint time to lose any remaining solvents, complete curing, absorb water, and, in general, stabilize to the in-water environment.

5.2 This test method is intended to provide a comparison with a control antifouling coating of known performance in protecting underwater portions of ships' hulls. This test method gives an indication of the performance and anticipated service life of antifouling coatings for use on seagoing vessels. However, the degree of correlation between this test method and service performance has not been determined.

(Back to all Standards)

 
   
Advertisements
 
Novatek Corporation
 
Novatek Corporation, Dustless Coatings Removal
 
Strip, clean and profile all dust free! Comply with new lead standards. Contact today: (866) 563-7800
 

 
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
 

 
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.
 

 
Modern Safety Techniques
 
Modern Safety Techniques
 
With our unique LTCat, we can help to provide clean, safe breathing air to your workers. Take a look at our Breathing Air Systems, we supply at least twice as much charcoal as our competitors! Modern
 

 
Clemco Industries Corp.
 
Maximum Dust Suppression Systems Start at $14,950
 
The system comprises proven technology and equipment with user-friendly flexibility in mind. See it in action.
 

 
KTA-Tator, Inc. - Corporate Office
 
KTA-Tator
Coatings Inspection
 
Any structure, any height, any place - A qualified coatings inspector is always available. Call 1-800-245-6379.
 

 
W Abrasives
 
Optimize your blasting process and operations!
 
Blasting is a complex process that goes above and beyond the simple question of the shot used, no matter how innovative and efficient it is. W Abrasives is there to help.
 

 
SEMicro Division, M.E. Taylor Engineering, Inc.
 
Coatings Adhesion Testers
 
The PATTI® accurately measures the bond strength between coating & substrate. Outfitted properly, the surface can be rough, porous, or curved & >10K psi strong!
 

 
Aggreko
 
Portable Heating Rentals
 
Rental heaters are available for your painting/coating project. Aggreko offers stand alone or in-line heaters, ready to rent. 24/7 service, nationwide.
844-433-9802
 

 
Monti Tools, Inc.
 
BRISTLE BLASTER® – THE ORIGINAL ONE
 
  • Abrasive blast with a power tool
  • Remove corrosion, mill scale and coatings
  • Cleans & roughens
  • Meets SSPC-SP 10 / NACE No. 2
  • Profile up to 4.7 mils
  • ATEX Zone 1
  •  

     
     
     

    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