| Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise


Download our free BWater Works Coating Systems eResource Book

Problem Solving Forum

| More

May 19 - May 23, 2014

How should a contractor respond to a specification requirement that “the nominal dry film thickness of the coating shall be 3 mils?”

More items for Coating Application

Selected Answers

From George Musterer of Hecate Painting & Sandblasting on July 2, 2014:
Three mils is a defined single thickness that would be impossible to achieve. The best answer is to request clarification from the consultant. They need to provide a suitable range (i.e., 2-4 mils) recommended by the manufacturer. Nominal means "in name only" such as a 2x4, which is actually 1 1/2" x 3 1/2". It is hard to determine what the intent was when using the term "nominal." Using a range is the best way to define coating thickness.

From david cuthbertson of savcor on June 20, 2014:
If the coating is IOZ, no problem.

From James Albertoni of CA Department of Water Resources on May 28, 2014:
Generally, nominal is used in place of average; therefore, the minimum and maximum allowable thickness would be based on the referenced standard, such as SSPC-PA 2. However, as Russell pointed out, if it is not defined, then request clarification through the RFI process.

From Russell Draper of Group 10 Engineering on May 13, 2014:
If the meaning of the word is not defined in the specification or contract, the contractor should request a clarification.

Please sign in to submit your answer this question    

Tagged categories: Coating / Film thickness

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

Commercial Sand Blasting & 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
SSPC 2016 Register Now!

SSPC2016 is earlier this year, don't forget to book your plane tickets and hotel. See you soon. For more information visit

Graco Inc.
Graco Mortar Pump

The M680 sprays epoxy-based mortars, anti-skid coatings, cementitious and filled materials. Compact.
Easy to use.
Call 877-844-7226 or

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.

Clemco Industries Corp.
Global engineering-trusted solutions

For more than 70 years, Clemco has provided the highest quality blast equipment with a total commitment to comfort and safety.

U.S. Zinc
Zinc. Quality With U.S.

We provide a superior experience to each of our customers. Through added infrastructure, we have become a fully integrated REACH-registered supplier.

AW Chesterton
ARC Protective Coatings

perform reliably under the most demanding exposures in the toughest process conditions. Use our Coating Selector Tool for your application needs at

Apex Waterjetting Technologies
Waterjetting – Custom Manufacturing and Wholesale

• Waterjet Accessories
• Saphire Nozzles
• UHP Hoses
• Replacement Parts
• Wholesale Direct
• 24 Years of Experience
• Buy and Save!!!

Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Hydro Utility Penstock Overcoated in 1997. Was power washed and overcoated with major cost saving. No environmental impact with Termarust's low LC50 of 41,007 ppm.

Julbert, Inc.
Built from the ground up.

Dust Collectors Available!
We deliver to your Jobsite!
Built Tough! Priced Right!
PH: 208-437-2100

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   |   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