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

 

Download our free ebook on Advances in Corrosion Control Coating Technology

Problem Solving Forum

| More

April 7 - April 11, 2014

When a food plant runs 24/7, even during coating maintenance, tiny airborne food particles can contaminate a prepared surface. How do you identify, prevent and/or remove such contamination before coating?



More items for Surface Preparation


Selected Answers

From virani jagdish of MHI on April 29, 2014:
Non-visible dust can be detected by using a dust-level tape test.

From David Cobbett of B-Rite Coating Inspections on April 24, 2014:
When I was overseeing a dousing tank at a nuclear site, I was looking at the previous coating failure and found as many as 5 coats could be distinguished, with a fine crystal-like film between each coat. So there was contamination from start to finish.  Fine airborne particles from other parts of the plant were driven upward because of the heat to the top of the reactor where the dousing tank was located. To overcome this problem, we fabricated dust walls using 2-inch PVC pipe and 40-mil plastic sheets, then sealed the walls with tape once an area was squared off, forming an inclosure. Two holes are necessary on both outer walls with two air-moving units. The intake runs at 70%, the outtake at 100%, creating a negative air space of about 3 atmosphere and achieving a dust-free environment.

From Warren Brand of Chicago Coatings Group on April 8, 2014:
Of course, the details of the materials being processed are critical. We worked at a large facility on a  flour silo. In that case, we took normal precautions for dust and isolated the work area. I think I would focus on isolating the work area. Testing or identifying contaminants would depend on the specific facility and materials involved. In another case, we worked at a facility that made powdered detergent. The dust was so incredibly fine that it was impossible to see. It was just luck that one of the blasters noticed a slight sheen on his blasted surface, which made us  realize that this invisible dust had contaminated the substrate.

Please sign in to submit your answer this question    

Tagged categories: Food Processing Plants; Maintenance coating work; Surface preparation


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

NLB Corporation
MiniARM automates surface prep

NLB’s Mini ARM lets an operator control high-pressure water jets remotely, with fast tool changes for different jobs. It maximizes protection and productivity.


Atlantic Design, Inc.
BUILDING INNOVATION, NOT IMITATION

The smallest version of our Blast Vacuum Recyclers, this ADI 2300CFM 2-Pot is a cleverly designed power package for those smaller jobs. 866.Call.ADI


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


Axxiom Manufacturing
Schmidt Introduces
the New miniBRS

Reduced in size, it is incredibly easy to maneuver and operate! The perfect alternative to larger blast & recovery units when project space is limited.
Call 1-800-231-2085


Abrasives Inc.
Check our Prices for Blast Abrasives

Faced with higher abrasive costs? We invite you to call & check our rates on Black Magic® coal slag and other quality blast materials. Abrasives Inc. 800-584-7524


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.


CS Unitec
Work Cleaner and Safer

CS Unitec’s new ATEX Vibro-Lo Kits feature low-vibration scalers for use in hazardous environments. Kit includes dust shroud, CuBe needles, fall arrestor and lanyard.


Novatek Corporation
Novatek Corporation, Dustless Coatings Removal

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


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


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

 
 
 
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