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

 

Download our free Transmission Pipeline Coating Systems eResource Book

Problem Solving Forum

| More

September 15 - September 19, 2014

The literature indicates that UHP waterjetting produces a profile on steel, although of a micro nature. Is this sufficient roughness for good adhesion of thin-film primers?



More items for Surface Preparation


Selected Answers

From OM PRAKASH JAT of KAEFER SAUDI ARABIA on November 20, 2014:
Yes, the profile produced by UHP waterjetting is sufficient for good adhesion of thin-film primers, in the range of  25-40 microns DFT.

From Lydia Frenzel of Advisory Council on October 18, 2014:
Yes, it is good for coatings. However, the major profile which you see after UHP waterjetting (Hydroblasting) is the profile left by the original abrasive blasting. Visualize the removal of slivers of steel or embedded abrasive particles, or the washing away of residual sand dust. In the normal course of events, pressure washing, high pressure water blasting, and UHP waterjetting reveal the profile that is under the coating or corrosion. It removes the old paint. If that profile is suitable for the paint, then paint over it. When the water jetting pressure is above theshhold pressure limit, then it can profile the metal. See VanKuiken, US patents for Aluminum. The coatings wet and adhere much better than over solid abrasive profiles. The companies who make profiles on small metal parts with only use water with robotic control to keep the profile consistent.

From robert turner of Newport News Shipbuilding on October 10, 2014:
Coating thickness does play a role. For instance, if it is heat- resistant aluminum paint applied at much less than 1 mil, it may be appropriate. But if it is an epoxy coating that goes on at 4-6 mils, then no. There are a lot of other factors that go into this, such as service environment (hot/cold/ambient, immersion, weathering, etc.) and the coating applied. In short, one must evaluate a myriad of factors.

From gilbert urma of HHIC-phil on October 7, 2014:
The profile produced by UHP water jetting is the best for thin-film coatings because the substrate's peak will be coated.

From Francis Goss of Rienecker Projektmanagement on October 2, 2014:
It depends on the product. It is best to consult the manufacturer of the paint you plan to use.

From ramon mccloskey of realisticlondonltd on September 25, 2014:
Yes.

From Warren Brand of Chicago Coatings Group on September 19, 2014:
Short and sweet (I hope I'm right.): no.

Please sign in to submit your answer this question    

Tagged categories: Coating / Film thickness; Surface preparation; Surface profile; UHP waterjetting


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

Atlantic Design, Inc.
OUR INDUSTRY IS CHANGING!

We should know. We’re the ones leading the way. Cleverly simple. Clearly ADI. 866.Call.ADI


NLB Corporation
VacLance cleans up as you do surface preparation

Add vacuum recovery to any NLB rotating water jet lance with a VacLance attachment and vacuum source. Model DM32283 works vertically, horizontally and in corners.


Harsco
Find BLACK BEAUTY® Abrasives

Use our online tool to search by address, city or zip code to find where you can buy BLACK BEAUTY® abrasives. Or call us toll free: 1-888-733-3646


Montipower, Inc.
The MBX Bristle Blaster

Get a 2.7 to 3.3 mil profile and a Near White Metal Clean. For info visit www.mbxit.com or call 877 629-8777


Minerals Research & Recovery

HIGH PERFORMANCE ABRASIVES


“Made in the USA!”

Why recycle waste from other countries? Go FASTER, CLEANER, at 1/3 THE COST with MR&R “All-American” Sharpshot®HP!!

WATCH THE VIDEO


CS Unitec
Surface Prep & Material Removal

CS Unitec’s Floor Planers remove coatings & corrosion from concrete & metal surfaces. Produce keyed profiles for waterproofing applications. info@csunitec.com


Absolute Equipment/Grand Rental Station
Portable Power from Absolute Equipment

•Compressors
•Lighting Systems
•Generators
•Light Compaction
Sales • Rental • Service
Call 1-866-931-6655
Over a century of
providing excellence.


Abrasives Inc.
One Call Orders it All!

Life is good when it’s simple. We distribute Clemco blast equipment, nozzles & parts alongside our proven blast media. Make your call: Abrasives Inc. 800-584-7524


Clemco Industries Corp.
Powerful Protection in a Small Package

Mounts inside blast helmet, alerts operator to dangerous breathing-air condition by audible, visual, and vibratory alarms. Easily calibrated, battery operated.

 
 
 
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