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

April 11 - April 17, 2011

How clean must the compressed-air supply be for blast cleaning, blow down and painting? How is cleanliness of the air determined?



More items for Surface Preparation


Selected Answers

From Pongpawut Onkaew of Akzo Nobel Coatings on June 16, 2011:
     Conduct a blotter test in accordance with ASTM D 4285, Acceptance criteria is no visible oil, water or other contamination  allowed.

From Aldrin Cordovez of Kuwait Oil Company on May 28, 2011:
     A compressed air free from any form of contaminants is necessary before its usage. Its cleanliness shall be checked using the blotter test method. Any traces of water, oil and foreign matters shall not be visible on the blotter test paper before it can be utilized for such purposes.

From Gary M of T & G Services on April 14, 2011:
     It is critical that the air supply is not contaminated with oil or water during all the processes you listed. To ensure that the air is dry and clean, conduct a blotter test prior to starting each work shift and at reasonable intervals throughout the day. If contaminants are evident on the blotter test, all filters and driers that should be present in the supply line must be opened and blown out until the air is clean and passes the blotter test. If you can't achieve a passing test, added filters can be used, or the air source should be replaced.

From Carl Havemann of www.corrosioneducation.co.za on April 14, 2011:
     There are two contaminants to test for, oil and moisture. Check for oil using the Drager Oil Mist 1/a tube, Ref 6733031. Acceptance criteria is that no oil is allowed. To check for moisture, blow the compressed air onto clear glass for 30-60 seconds, then check for condensation. Acceptance criteriais that no moisture allowed. [A 5-minute test is too long, in my opinion]

From Lee Edelman of Independant on April 13, 2011:
     The air supply must be free of oil, water and other contaminants. Cleanliness is checked by doing a blotter test at the air manifold. The air supply should have moisture traps in-line and a proper aftercooler system.

From remko tas of Futuro SRL on April 13, 2011:
     Expose a sheet of white paper (taped to a board) at a distance of 1 meter for 1 minute to the airflow from the compressed air supply.There should be no visible oil stains on the white paper.

From John Gascoigne of Puget Sound Coatings on April 12, 2011:
    The air needs to be clean. Test for cleanliness by blowing into a white rag or a clear glass or plastic container for 5 minutes.

Please sign in to submit your answer this question    

Tagged categories: Air abrasive blast cleaning


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

Monti Tools, Inc.
BRISTLE BLASTER® - THE ORIGINAL ONE

Surface cleanliness of SSPC-10 | Anchor profile
up to 4.7 mils | Removes corrosion & coatings |
ATEX approved for zone 1
| www.monti.com | 832-623-7970


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!


Atlantic Design, Inc.
GOING BEYOND INDUSTRY STANDARDS

The ADI HD40 Dust Collector is a smaller, more economical way to meet/ exceed Industry standards. Watch the video for details on our website. 866.Call.ADI


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.


Harsco
BLACK BEAUTY® GLASS

A 100% post-consumer bottle glass abrasive from a company you can trust. 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


CHLOR*RID International Inc.
HOLD*BLAST: Buy time for pennies per sq ft.

* Stop flash rust
* Vapor blasting
* Wet blasting
* UHP water jetting
* No residue


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


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.


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.

 
 
 
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