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

May 26 - May 30, 2014

When animal fat in slaughterhouses penetrates concrete surfaces, how do you identify and remove the contamination before coating the concrete?

More items for Surface Preparation


Selected Answers

From Jim Johnson of CHLOR*RID International Inc. on June 4, 2014:
When we were a coating application contractor, we worked on numerous floors in dairy milking barns and meat packing plants. We tried many type of degreasers and found none of them adequately removed the fat. Several times, we were sure all the fatty materials were removed, only to find a couple months after coating application that the coating began to degrade and looked like swiss cheese with holes in it, and it became rubbery. What we eventually found was that the fatty material had penetrated 3 to 4 inches into the concrete, and there was no viable way to remove it. Bacteria-based cleaners would take months to work, and no one would take the facility off line long enough to do it. The best advice I can give to a contractor contemplating such a job is RUN, do not walk, away as fast a you can go! The only other option would be to remove and replace the top 4 inches of concrete or just pour a new slab on top of what it is there.

From Timothy Knell of Shore Corporation on May 30, 2014:
Since the fats are normally solid rather than liquid, a typical surfactant-based degreaser (normally used on liquid oils) will not be very effective unless very hot water is used. A strong alkaline degreaser  will convert much of the fat into a soluble surfactant that helps remove the rest. If scheduling permits, a bacteria-based cleaner that eats oils and greases can biodegrade the deeper soils as they try to migrate to the surface. Under ideal conditions dramatic results can be seen in 1 to 2 days.

Please sign in to submit your answer this question    

Tagged categories: Concrete coatings and treatments; 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
 

 
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.
 

 
Monti Tools, Inc.
 
BRISTLE BLASTER® – THE ORIGINAL ONE
 
  • Abrasive blast with a power tool
  • Remove corrosion, mill scale and coatings
  • Cleans & roughens
  • Meets SSPC-SP 10 / NACE No. 2
  • Profile up to 4.7 mils
  • ATEX Zone 1
  •  

     
    Advanced Recycling Systems
     
    Recycler Rentals
     
    Abrasive Recycling Systems, Dust Collectors, Vacuum Units, and Lift Platforms. Quality Sales, Service, Parts & Rentals!
    ARS Recycling Systems - Phone 330.536.8210
     

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

     
    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.
     

     
    Industrial Vacuum Equipment Corp.
     
    Hurricane Vacuums
    & Dust Collectors
     
    Vacuum and dust collector hose, filters and related accessories.
    IndustrialVacuum.com
     

     
    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
     

     
    Abrasives Inc.
     
    Discover the MAGIC.
     
    Black Magic® coal slag. It’s consistent, cleaner, cuts better, less dust. Get it where you need it, when you need it. Abrasives Inc. info@abrasivesinc.com
     

     
    Waterjet Technology Association (WJTA)
     
    Click to register today!
     
    See the latest automated and handheld UHP waterblasting tools/systems/products. Exhibits, live demos, educational sessions, waterjet short course, networking.
     

     
     
     

    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