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

 

Download our free eResource: Safety in Coatings Work.

Problem Solving Forum

| More

October 3 - October 9, 2011

When applying a 100% solids, fast-curing polyurea coating on concrete, what is the best method for verifying that the proper thickness has been applied?



More items for Coating Application


Selected Answers

From David Cerchie of Versaflex Inc. on July 17, 2012:
The UT, stroke count and embedded metal plate methods are all suitable. Because of the very fast initial reactions of sprayed polyurea systems, wet-film measurements are virtually impossible. Furthermore, pure polyurea systems are normally 100% solids,  so wet film thickness will equal dry film thickness. Additionally, due to the fast initial cure, surface topography is not a consideration as there will be very little flattening of the coating system. Depending on the spray gun used, there can be varying amounts of air entrainment in the sprayed systems, but generally that does not effect the UT measurements if the gauge is properly set. Some polyurea manufacturers can provide compatible hand repair polyurea if destructive testing is the only available method.

From MIKE LEARNED of NEW HABIT INC on November 22, 2011:
"MIC" a coated shim!!!

From Tom Swan of M-TEST on October 4, 2011:
The two best non-destructive methods are 1) using a UT (ultrasonic thickness) gauge preset to measure coatings over concrete. If you are a UT person, you can use a regular UT gauge, but you need the proper probe with the proper gate settings. This is good up to about 150 mil coatings. 2) The second method is to put small metal plates on the surface of the concrete prior to coating at easy-to-find locations. If you have a non-ferrous gauge, you can use aluminum tape. You can then go back to these spots and use a regular dry film thickness gauge to read the coating thickness over the plates. For destructive methods, you can use a Tooke Gauge for coatings up to about 60 mils.

From massimiliano Lo Re of Studio mlr on July 13, 2012:
The question needs to specify if dry film or wet film thickness is being verified.  The topography valley of concrete substrate and its porosity must also be considered.

From Kishore Kumar K R of Nukote on October 13, 2011:
Because of air in the film, the ultrasonic gauge will not give you a proper/accurate measurement. For non-destructive measurement, use the machine strokes reading and thereby the volume for a fixed or pre-measured area. Use a digital vernier to measure.

From Mario Lefebvre of Polyval Coatings Inc on October 4, 2011:
     1) With an ultrasonic thickness gauge. 2) You can also estimate the thickness applied with the square feet + number of gallons applied. 3)You can cut a piece of the membrane, but it is a destructive test, so I try to avoid it.

Please sign in to submit your answer this question    

Tagged categories: Coating / Film thickness; Concrete; Concrete coatings and treatments; Polyurea


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

Commercial Sandblasting & Painting Ltd.
Reliable Service & Superior Workmanship

We’re ready to meet any of your protective coating and lining needs. We can work on your site or in our facilities, with large shops (60,000 sq ft), 40 acres of yard space, and cranes and forklifts on site.


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

Join SSPC and Enhance
Your Career !


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


Corrosion Probe, Inc.
From Detection to Correction

Corrosion Probe, Inc. has the Most Concrete Coatings Experience and Expertise. Contact us today at
860-767-4402, www.cpiengineering.com


DRYCO
The one way to control
a tank: DRYCO

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


Polyval Coatings
Polyflex® Polyurea Linings

Polyflex™ new Polyurea Geotextile Membrane System has been specifically engineered to protect the environment in containment applications.
www.polyflexlinings.com


Graco Inc.
Graco M680 Mortar Pump

Compact and portable. Great for concrete resurfacing and repairs. Handles mortars, cementitious and filled materials.
Call 877-844-7226 or info@graco.com.


Abrasives Inc.
Check our Prices for Blast Abrasives

Faced with higher abrasive costs? We invite you to call & check our rates on Black Magic® coal slag and other quality blast materials. Abrasives Inc. 800-584-7524


Trelawny Surface Preparation Technology
Surface Preparation Equipment

Manufacturer of needle scalers, grinders, scarifiers and scabblers. Pneumatic tools for Marine and Construction. US distributor CS Unitec: 800-700-5919


Armakleen Company, The
ARMEX when nondestructive cleaning is critical

ARMEX the original baking soda blast abrasive is a brand of Church & Dwight Co., Inc. makers of ARM & HAMMER products since 1896.

 
 
 
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