PaintSquare.com


The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

Download the FREE Equipment and Rental Resource Guide

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 CW Technical 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

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


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


Atlantic Design, Inc.
POWER ON WITH ADI!

The most air flow possible… In the smallest package imaginable… For a price you won’t believe! 866.Call.ADI


CHLOR*RID International Inc.
Free Webinar

Learn about soluble salts, along with a discussion on allowable levels.
More information at
www.chlor-rid.com,

800-422-3217


Graco Inc.
Blast with 92% less dust.

Graco EcoQuip Vapor Blast equipment performs as well as dry blasting, but reduces airborne dust up to 92%! Use less media, save money in material and cleanup. See our FREE shipping offer!


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.


Axxiom Manufacturing
Schmidt Improves
Portable Blasters

Schmidt's VBS System reduces blowdown intensity, prevents exhaust from damaging floor while using no screens or filters. Reduces sound; Increasing safety.
Call 1-800-231-2085

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker JPCL Europe

 
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 2000-2014, 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