PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

PaintSquare


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 TECH INTERNATIONAL SHARJAH HAMRIAH UAE. 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 KBN Konstruktion GmbH 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

Advertisements
 
Axxiom Manufacturing
 
The Undisputed
Industry Leader.
 
Proven Innovation. Job Performance. Industry Training. Workplace Safety. Only Schmidt® abrasive blast equipment by Axxiom Manufacturing delivers it all!
 

 
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
 

 
Harsco
 
BLACK BEAUTY® App
 
Download the free app for BLACK BEAUTY® Abrasives. Explore all the features from the palm of your hand.
Toll Free: 1-888-733-3646
 

 
NLB Corporation
 
NLB Sure Shroud: Greater Protection and Flexibility
 
NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.
 

 
Monti Tools, Inc.
 
BRISTLE BLASTER® – THE ORIGINAL ONE
 
  • Abrasive blast with a power tool
  • Remove corrosion, mill scale and coatings
  • Cleans & roughens
  • Meets SSPC-SP 10 / NACE No. 2
  • Profile up to 4.7 mils
  • ATEX Zone 1
  •  

     
    CHLOR*RID International Inc.
     
    SOLUTIONS THAT WORK
     
    Companies that invest in corrosion control use CHLOR RID products
    • Soluble salt removal liquid
    • Test kits to verify contamination levels
    • Surface passivation to hold the blast
    INFO@CHLOR-RID.COM 800.422.3217
     

     
    Novatek Corporation
     
    Novatek Corporation, Dustless Coatings Removal
     
    Strip, clean and profile all dust free! Comply with new lead standards. Contact today: (866) 563-7800
     

     
    Industrial Vacuum Equipment Corp.
     
    Hurricane Vacuums
    & Dust Collectors
     
    Vacuum and dust collector hose, filters and related accessories.
    IndustrialVacuum.com
     

     
    Clemco Industries Corp.
     
    Maximum Dust Suppression Systems Start at $14,950
     
    The system comprises proven technology and equipment with user-friendly flexibility in mind. See it in action.
     

     
    RBW Enterprises, Inc.
     
    Robotic Blasting and Painting
     
    When using the FasterBlaster and FasterPainter, blasting and painting can be conducted simultaneously. View the video for a full explanation of the operation.
     

     
     
     

    Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

    TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


    The Technology Publishing Network

    Durability + Design PaintSquare the Journal of Protective Coatings & Linings 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