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  1. Andrew1974

    Quick Drying Zinc-Rich Primer?

    Hello, an excellent quick drying product is Gulf Coast Paint- MCU100. https://gulfcoastpaint.com/mcu-100-primerfinish-moisture-cured-urethane-aluminum-coating We use this on structural steel in our facility. Can apply 2 coats with 3 hours. Very fast drying and designed for industrial area. Andy
  2. Andrew1974

    Adhesion test and topcoating

    Anything that exceeds 500 PSI on the ASTM D4541 test is what you want. That's a standard for most of the High Performance Epoxies on the market: SW Macropoxy 636, Devoe 235, Gulf Coast Paint's CM-15, Rustoleum 9100.
  3. Andrew1974

    Naoh storage tank lining

    Here's an option we used in the past for tank internal tank lining: https://gulfcoastpaint.com/pc-517-poly-chemcure-high-build-glass-filled-epoxy-mastic/ I would contact the manufacturer and ask if the product can handle NaOH 40%. Thanks, Andy Jr.
  4. Andrew1974

    Where do you go for Paints/Coatings?

    Hi All, Just curious as to where lots of you go to get your paints & coatings? Online? ARCAT, Construction Connect? Or do you have corporate specifications? What are some other options you use? Thanks, Andy
  5. Andrew1974

    Chalking of steelwork

    Hi Simone, Steve is correct. I would recommend an acrylic aliphatic polyisocyante. Acrylics have excellent UV & Gloss retention. 2 urethanes our facility uses is Rustoleum 9800 & Gulf Coast Paint CT-398. Both products have over 3500 hours in the QUV which shows the weathering effect on...
  6. Andrew1974

    Rigid, hard coating?

    I would use an Epoxy Mastic Coating. CM-15 Epoxy Mastic from Gulf Coast Paint is a good product we've used in our facility. Self priming, great for immersion.
  7. Andrew1974

    Epoxy vs Acrylic Sealant for Concrete

    Acrylic's don't have very chemical resistance. You are also correct about epoxy durability. There's a company in Portland, OR called Technical Coatings Int'l that has a very good epoxy line and sealant caulking that might be good for this application.
  8. Andrew1974

    Repairing Weathered Phenolic Epoxy

    http://www.epoxyproducts.com/aluthane.html Here's a potential as a fix that will hold you over. I've used this over tight rust before on steel beams and it worked great. Andy
  9. Andrew1974

    Polyurethane vs FRP

    I've done work with Internal Tank Linings, floating roofs, etc and here's what I used when I worked at Chevron in Pascagoula, MS. http://gulfcoastpaint.com/wp-content/uploads/2015/11/PC-517-Super-Mastic-Brochure.pdf Gulf Coast Paint PC-517 Cycloaliphatic Epoxy
  10. Andrew1974

    Polyurethane vs FRP

    I would not use a polyurethane in this situation. I would recommend a Cyclo-Aliphatic Epoxy. They're designed for immersion in these situations. Polyurethanes are generally used for UV protection, gloss retention, etc.
  11. Andrew1974

    Sealing rust "forever" is possible?

    We use a Moisture Cured Urethane in our facility over rusty surfaces. It's the best I've seen at sealing it, but it doesn't last forever. All we do is knock off mill scale and apply coating to tight rust. We use Gulf Coast Paint MCU-100 Aluminum...
  12. Andrew1974

    Coating System for Fish Hatchery Sludge Tanks

    I think something like a Cyclo-Aliphatic Epoxy would work good. I've used one in the past for chemical resistance and for immersion. Here's the on I used. Gulf Coast Paint's PC-517 http://gulfcoastpaint.com/wp-content/uploads/2015/11/PC-517-Super-Mastic-Brochure.pdf
  13. Andrew1974

    Plant and Engineering Tradeshows

    Thank you Maui. This is a good start.
  14. Andrew1974

    Plant and Engineering Tradeshows

    Does anyone have Paints % Coatings shows they like to attend? Corporate feels like we needs to get out and see some "new technology" and I wanted to get some ideas from you guys on what's out there. Andrew
  15. Andrew1974

    Paint selection for carbon steel surface which is not blasted

    Tmoose, not sure I believe that..
  16. Andrew1974

    Paint selection for carbon steel surface which is not blasted

    I've used a product called MCU-100 Aluminum from Gulf Coast Paint Mfg., Inc. It's made for steel where you have minimal prep done. I've done it on tanks as well. High heat resistance up to 400 degrees F. Best product out there for minimal prep on steel.
  17. Andrew1974

    High Build Epoxy or Phenolic Epoxy

    I think a phenolic epoxy is over kill. An epoxy mastic would work good in submerged fire water.

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