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

 

Download our free Specialty Function Coating Systems eResource Book

Problem Solving Forum

| More

June 24 - June 30, 2013

How does the concave or convex curvature of a surface affect the WFT reading?



More items for Quality Control


Selected Answers

From PARVEZ SHAIKH of SANDVIK ASIA PVT. LTD. on September 4, 2013:
There should be no problem for measuring the wft on concave or convex  surfaces if you use use an appropriate tool for measuring the surface. In  both these cases, you cannot use a comb gage, but you can use a circular gage that can be rotated on the surface.

From Tom Swan of M-TEST on July 31, 2013:
As long as the wet film thickness gauge is used perpendicular to the curvature, concave or convex, there should be no error unless the surface is curved in 3 dimensions, i.e., it will work on a pipe if used on its length but not on a sphere. You could use a wet film wheel on just about any curved shape since there is only one point of contact at a time, the exception being on very small concave surfaces where it would not be practical to use it.

From SUDALAI RAJ of Akzo Nobel Coatings I Pvt Ltd on July 27, 2013:
The WFT gauge with convex or concave surface will show inaccurate readings on both convex and concave surfaces because  it is designed for plane surfaces. With a concave surface, it will show less than the actual film thickness. With a convex surface, it will show more than the actual film thickness.

From Atul Patel of ASP Engineers & Contractors on July 6, 2013:
A wet film thickness gauge is designed to be used on a planar surface; hence, if the intended surface is not planar, the reference markings on the wet film thickness gauge will show false readings.

Please sign in to submit your answer this question    


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

DeFelsko Corporation
PosiTest Automatic Adhesion Tester

Electronically controlled hydraulic pump applies smooth and continuous pull-off pressure at user selectable rates. No twisting, pumping or cranking.


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

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


Nationwide Overspray
Profession Overspray Removal Services

The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.


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

Join SSPC and Enhance
Your Career !


Elcometer, Inc.
Durability & Design meet
Performance & Reliability

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


Fischer Technology Inc.
MP0R with rotating display screen

Automatic rotating display screen just like your smart phone. Click for Video
Call 800-243-8417


U.S. Zinc
Helping the World Work

We offer custom grades and packaging of zinc dust, oxide, metal and fines, U.S. Zinc provides direct shipping to locations worldwide. U.S. Zinc – Helping the world work


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


Novatek Corporation
Dustless Coatings Removal

Strip it, clean it, and profile it,
all dust free! High production
rates and Blast like finishes.
Comply with new lead
standards.


HoldTight Solutions Inc.
NO FLASH RUST -
NO CONTAMINANTS

Our HoldTight®102 salt remover & flash rust preventer prevents flash
rust by removing surface contaminants. It has no equal; only wannabees.
Contact us for your
nearest distributor.
(800) 319.8802 sales@holdtight.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