PaintSquare.com


The First Word in Protective & Marine Coatings

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

JPCL FREE Trial

Problem Solving Forum

| More

June 10 - June 16, 2013

How do you accurately measure the adhesion of inorganic zinc?



More items for Quality Control


Selected Answers

From TOLGA DIRAZ of PPG Industries - Bursa Plant on July 10, 2013:
I agree with Atanas and would not recommend a cross-cut adhesion test. I believe electronic P\pull-off adhesion testers like DEFELSKO POSITEST Pull-off adhesion tester might give more precise results.

From Atanas Cholakov of ACT on July 3, 2013:
This kind of coating develops a rock hard surface, but it is brittle once fully cured. Further, these coatings are prone to poor internal cohesion due to the high load of zinc (the necessary conductivity for galvanic protection). Their maximum thickness goes to 4-5mils on static equipment and often 3-4mils if the piece has to travel. I personally wouldn’t resort to the D 3359 or D 6677 suggested test methods by the ASTM in this scenario. Tensile strength pull-off test as suggested by Jordon might be the better option to gauge adhesion. However, prior to attempting the test, you've got to make sure that the coating is fully cured. MEK  or pencil hardness tests are recommended or get your coating supplier's opinion.

From Jordon Maceachern of powerwash restoration inc on June 20, 2013:
Measure the pull-off strength using a pull tester and dolly properly glued to the surface (such as an eclo 106 adhesion tester). Follow method described in ASTM D4541

From mohamed okaz of international maritime group on June 19, 2013:
Measure adhesion of inorganic zinc by using x-cut method.

From Dnyaneshwar Narode of TATA AUTOCOMP STSTEM LTD on June 14, 2013:
Use An Elecometer Adhesion Tester

From Stephen Cantrelle of Concord Terrazzo on June 12, 2013:
Use an Elcometer Adhesion Tester.

Please sign in to submit your answer this question    

Tagged categories: Inorganic coatings


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

Elcometer, Inc.
Durability & Design meet
Performance & Reliability

Elcometer 319 Dewpoint Meter
View the technical data on the Elcometer Dewpoint meter.


Fischer Technology Inc.
Gauges Meet IMO-PSPC & SSPC-PA2 Requirements

• USB or optional Bluetooth
• Custom inspection reports
• Excellent on edges & rough surfaces; Optimum accuracy
• Largest selection of probes to meet challenging situations
Call Fischer: 800-243-8417


JPCL Europe
Don’t miss an issue!

JPCL EUROPE offers essential news and knowledge for protective and marine coatings professionals in Europe, the Middle East and Africa. Subscribe now: www.jpcleurope.com


DeFelsko Corporation
PosiTector Dew Point Meter

Measures and records
environmental conditions
during surface prep and
painting. 4 Models
Available – Standard
or Advanced features,
Built-in or Separate probe.


KTA-Tator, Inc. - Corporate Office
KTA Online
Instrument Catalog

• Any Manufacturer
• Any Instrument
• Any Time
Visit www.ktagage.com
Or call 800-582-4243


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.


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.

 
 
 
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