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

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

Advertisements
 
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
 

 
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
 

 
Axxiom Manufacturing
 
Schmidt Improves Conversion Kits
 
Schmidt's conversion kits turn out-of-date blast pots into high quality, efficient blasters. Quick, easy to install with step by step instructions.
Call 1-800-231-2085
 

 
Harsco
 
Find BLACK BEAUTY® Abrasives
 
Use our online tool to search by address, city or zip code to find where you can buy BLACK BEAUTY® abrasives. Or call us toll free: 1-888-733-3646
 

 
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.
 

 
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.
 

 
Abrasives Inc.
 
Need more MAGIC around?
 
Black Magic® is a premier solution for abrasive blast media. Stop by our new website & find out how you can get more Magic. www.AbrasivesInc.com 800-584-7524
 

 
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.
 

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

 
 
 

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