PaintSquare.com


The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

Resource Guide Extreme Temperatures

Paint and Coatings Industry News

Main News Page


Tree Bark Banishes Barnacles

Friday, May 23, 2014

More items for Coating Materials

Comment | More

A new antifouling paint could repel organisms from ship hulls without killing them, researchers say.

Guillermo Blustein and his colleagues in Argentina say they have developed a sustainable paint ingredient from plants that can avert potentially adverse economic damage.

antifouling paint
© iStock / BartCo

Scientists have developed an antifoulant that could repel barnacles and algae without killing them.

When barnacles stick to hulls, they "create a cascade of problems," the researchers note. By keeping hulls clean, a ship's fuel savings can be increased by as much as 40 percent.

Barnacle-Repelling Bark

The researchers turned to Maytenus trees, whose root bark have compounds similar to agents produced by bottom-dwelling ocean creatures. Maytenus trees can grow in a wide variety of climates, from tropical to subpolar.

They found the compounds in the tree could repel barnacles, but didn't typically cause long-term damage.

These compounds were added to paint, which was applied to tiles and tested in the sea for 45 days.

According to the scientists, the new coatings effectively stopped algae, tube worms and other creatures from latching on.

The results, researchers say, may provide a more environmentally friendly alternative for the control of biofouling, replacing toxic additives currently in use in marine paints.

Maytenus trees
Wikipedia / Roblespepe

Root bark from Maytenus trees have compounds similar to agents produced by ocean creatures.

The report "Antifouling Activity of Celastroids Isolated from Maytenus Species, Natural and Sustainable Alternatives for Marine Coatings," appears in Industrial & Engineering Chemical Research, a journal from the American Chemical Society.

Editor's Note: This article was corrected at 1:02 p.m. EDT May 27 to reflect that keeping a hull clean can increase fuel savings, not fuel use. PaintSquare News regrets the error.

   

Tagged categories: Antifoulants; Bio-based materials; Research; Shipyards

Comment from Tom Schwerdt, (5/23/2014, 8:45 AM)

Nice.


Comment from Cay Strother, (5/23/2014, 9:26 AM)

The question that comes to mind though: is this tree sustainable and quick growing?


Comment from Mark Anater, (5/23/2014, 11:19 AM)

This is exactly the kind of research we need. It solves a current problem, and it’s sustainable.


Comment from Adlai Perry, (5/27/2014, 12:32 PM)

I believe that "By keeping hulls clean, a ship's fuel use can be bumped up by as much as 40 percent" should have been either: "By keeping hulls clean, a ship's fuel savings can be bumped up by as much as 40 percent" or "Unless a ship's hull is kept clean, fuel use can be bumped up by as much as 40 percent".


Comment from Mary Chollet, (5/27/2014, 1:04 PM)

Of course, you’re correct. Thanks for the catch!


Comment from Jeff Longmore, (5/28/2014, 9:56 AM)

45 days protection! Be still my heart! Time to get real, 450 days would begin to be interesting.


Comment from Tom Schwerdt, (5/29/2014, 8:32 AM)

45 days for an initial screening is reasonable, enough time to see if it works at all. I agree that much longer duration will be needed before actual deployment.


Comment Join the Conversation:

Sign in to our community to add your comments.

Sherwin-Williams
Heat-FLex® Hi-Temp 1200

Improved Corrosion
Resistance
Enhanced Durability
Faster Shop Throughput


International Paint LLC

International Paint Engineered Coatings

Learn about our solutions for:
  • Structural Steel
  • Piping & Equipment
  • Storage Tanks
  • Pressure Vessels
  • Secondary Containment


    Polyval Coatings
    Polyflex® Polyurea Linings

    exhibit outstanding versatility in use; providing abrasion resistance, superior seamless waterproofing and high-chem corrosion protection. www.polyflexlinings.com


    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.


    BASF
    New resins from BASF will have metals loving water:

    Excellent corrosion resistance, low VOC, high gloss, thin films basf.us/industrialcoatings
    polyorders@basf.com
    800-231-7868


    Hempel (USA) Inc.
    HEMPEL PROTECTIVE COATINGS

    Efficient systems and high quality products to reduce your maintenance costs. Visit Hempel Protective for more information.


    Barton International
    Garnet Replaces Staurolite at Gulf Coast Shipyard

    Learn how Barton 100HPA® was proven to cut 33% faster used 35% less abrasive with 50% less dust than Staurolite at a Gulf Coast Shipyard. (800)741-7756 info@barton.com

  •  
     
     
    Technology Publishing

    The Technology Publishing Network

    The Journal of Protective Coatings & Linings (JPCL) PaintSquare
    Durability + Design Paint BidTracker JPCL Europe

     
    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 2000-2014, 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