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

 

Download our FREE eResource: Specifier's Choice Guide. Get it now.

Problem Solving Forum

| More

June 27 - July 4, 2011

What steps must be taken to mitigate poor adhesion over an existing aged silver aluminum paint? What primer will achieve good adhesion?



More items for Coating Application


Selected Answers

From José Avendaño of Testers y Multimetros 2011 CA on June 27, 2011:
     Which ever surface preparation method you choose to enhance the bond, you must apply a test patch of the paint system to verify proper coating adhesion. You can use high pressure water cleaning and dull by sanding, but remember, check compatibility with ASTM D3359.

From friday Aigbekhai of Nigerdock on June 26, 2011:
      High pressure wash the surface; abrade the surface to activate it or sweep blast it; and apply surface-tolerant epoxy or a mastic primer.

From Bill Mann of United Coatings on September 2, 2011:
     Some of these aluminized paints will "leaf," even after being pressure-washed, which can result in a poor bond of the of the subsequent topcoat. I'd recommend a low-viscosity, penetrating epoxy primer be applied after cleaning, which will help minimize potential leafing of the aluminum.

From Anand Karamandi of Carboline on September 3, 2011:
Surface preparation of SSPC SP2 or SP3 is preferred, if SP6 or SP7 is not possible. A good coat of epoxy mastic at 5-6 mils DFT should be fine. If exposed to UV, a coat of urethane is recommended. Alternatively, a 100% epoxy penetrating sealer can be applied at 1 to 1.5 mil DFT, with solvent cleaning as surface preparation and a necessary topcoat can do a pretty decent job.

From Car F. of Municipal City on August 30, 2011:
     I would ask why was the aluminum paint used in the first place. There may be a thermal transferring consideration or a thin film requirement, such as heat radiators or similar devices. Once the question is answered, I would apply the suggestion of the prior commentators.

From Shrikant Naik of Asian Paints Limited on August 25, 2011:
     Thorough abrasion of the paint surface to remove loosely adherent paint film, followed by water wash to remove soluble salts and other contaminants, if any. The surface can then be coated with conventional alkyd-based coating or a surface-tolerant epoxy mastic.

Please sign in to submit your answer this question    

Tagged categories: Adhesion; Aluminum; Primers


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

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.


N.T. Ruddock Co.

Our Abrasives Hold Up Under Pressure

N. T. Ruddock focuses on abrasive selection, equipment evaluation, equipment maintenance & reduction of abrasive consumption. Other services include Screen Analysis & Background Radiation Testing.


NACE
The latest in Protective Coatings Technology

Examines every generic
type of protective coating
in detail, along with advantages and disadvantages of each. Add it to your library in print or ebook!


Sika-Us
Sika® Industrial Floor Coatings

Click to learn about floor and wall systems relied upon for performance, durability, easy maintenance and aesthetics across the every industry and environment.


Carlisle Fluid Technologies
Built for Tough Jobs

From Epoxies to Urethanes to other high solid coatings, the new Binks Airless 75 delivers a great finish using an ergonomic design. Visit binks.com for more information.


SEMicro Division, M.E. Taylor Engineering, Inc.
Coatings Adhesion Testers

The PATTI® accurately measures the bond strength between coating & substrate. Outfitted properly, the surface can be rough, porous, or curved & >10K psi strong!


Fischer Technology Inc.
MP0R with rotating display screen

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


Advanced Recycling Systems
ADVANCED RECYCLING SYSTEMS (ARS)

Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!
(330)536-8210


Vector Technologies Ltd.
The Original Performance Proven Vacuum Solutions

Vecloader DV 145, 350hp 6200 CFM & 28’’hg. For those big jobs, choose Vector for the most powerful trailer mounted vacuum in the industry today. 800-832-4010, 414-247-7100.


SAFE Systems, Inc.
Enduroguard -
The Tough Cable
for a Tough Industry.

Reduce maintenance costs and down time, increase job site safety with Enduroguard Cable. Available exclusively from SAFE Systems. UL listed, flexible, abrasion resistant and cut resistant.

 
 
 
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 2000-2016, 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