Carboline or Sherwin Williams should provide a letter under their letter head giving direction on what action to take and what product to apply. This letter should be signed by someone of authority within their company that the Owner or engineer or both can go back to them for resolution if there is a problem later with this coating system. In addition, who is going to provide the warranty, Carboline or Sherwin Williams or the contractor or all three? My suggestion - if any coating is to be applied that is not from the same manufacturer, if recoat windows have been exceeded, if coating repairs are needed or anything else out of the ordinary with this coating is to be done, get clear direction in writing in letter form under the coating supplier's letter what is to be done. Industrial coatings are not cheap and contractors that apply industrial coatings are not cheap either. Lets apply coatings on these arches with the expectation that they perform as required and dont fail early. And another thing, you may want to ask that certified painters apply the coating. If this all gets setlled with using coatings from one supplier for the entire coating system, a warranty should still be provided. I design coating systems for corrosion control on large 10 and 12 million steel water tanks and I have worked with industrial coatings on many other types surfaces in the past years. I have also worked with and still do work with representatives within both Carboline and Sherwin Williams. If I can be of further help in this matter please do not hesitate to call me. Sent from myTouch 4G Robert Boswell 512-436-3380 NACE CCI, NACE CCT CWI, CRI, NDE Level II Project Manager/Consultant Welding/NDT Practice Leader Under Water Dive Con Specialist ----- Reply message ----- From: "Wade Geistweidt" To: "Robert Boswell" , "David T. Hernandez" Cc: "Richard J. Hammerberg" , "cbarnett@addisontx.gov" Subject: Town of Addison Vitruvian Park Phase 1D Steel Arch Paint Date: Tue, Mar 29, 2011 4:04 pm David and Robert, What are your thought on this? Thanks Wade Geistweidt Engineering Tech 2035 Central Circle Suite 110 McKinney, TX 75069 o| 972.562.4677 c| 469.576.9951 f | 972.542.4366 ________________________________ From: Eric T. Little [ELittle@udr.com] Sent: Tuesday, March 29, 2011 2:40 PM To: Andrew Harper; Nick Jacob; don@sdpcllc.com; Wade Geistweidt Cc: Todd Henson; Derek Dodson Subject: RE: Town of Addison Vitruvian Park Phase 1D Steel Arch Paint Thanks – I’ll get with Kleinfelder and make sure they are ok with that. From: Andrew Harper [mailto:AHarper@Austin-Ind.com] Sent: Tuesday, March 29, 2011 2:32 PM To: Eric T. Little; Nick Jacob; don@sdpcllc.com; wgeistweidt@kleinfelder.com Cc: Todd Henson; Derek Dodson Subject: RE: Town of Addison Vitruvian Park Phase 1D Steel Arch Paint Spoke with Bruce at Carboline Technical Services. He said that the special surface preparation involves simply pressure washing the surface, and applying a “tie-coat” primer. According to Scott Derr Painting, our intermediate coat of paint is a “Recoatable Epoxy Primer” which is the same as a “tie-coat”. Andrew Harper Cell (214) 886-6666 From: Eric T. Little [mailto:ELittle@udr.com] Sent: Tuesday, March 29, 2011 2:00 PM To: Andrew Harper; Nick Jacob; don@sdpcllc.com; wgeistweidt@kleinfelder.com Cc: Todd Henson; Derek Dodson Subject: RE: Town of Addison Vitruvian Park Phase 1D Steel Arch Paint The spec sheet says: The arches have weathered for more than 30 days. We need to see if any “special surface preparation” is required prior to topcoating. From: Andrew Harper [mailto:AHarper@Austin-Ind.com] Sent: Tuesday, March 29, 2011 11:12 AM To: Eric T. Little; Nick Jacob; don@sdpcllc.com; wgeistweidt@kleinfelder.com Cc: Todd Henson; Derek Dodson Subject: FW: Town of Addison Vitruvian Park Phase 1D Steel Arch Paint Sherwin-Williams says that their paint is compatible with the Carboline 828 Primer. Attached is the technical data for reference. Thanks, Andrew Harper Cell (214) 886-6666 From: 5896 Rep [mailto:swrep5896@sherwin.com] Sent: Tuesday, March 29, 2011 9:35 AM To: Andrew Harper Cc: swrep4881@sherwin.com Subject: Re: Town of Addison Vitruvian Park Phase 1D Steel Arch Paint Andrew, Sherwin-Williams Recoatable Epoxy Primer and High Solids Polyurethane are commonly used and approved for use for TXDOT Protection System #3 as an epoxy intermediate and polyurethane topcoat over an epoxy zinc primer. In review of the Carbozinc 858 epoxy zinc primer technical data sheet, the data sheet states that the Carbozinc 858 may be topcoated with epoxies and urethanes. Therefore, Sherwin-Williams Recoatable Epoxy primer should be compatible with the Carbozinc 858 epoxy zinc primer as long as it is applied within the recoat window of the Carbozinc 858 zinc rich primer as stated on the technical data sheet. Please feel free to contact me with any questions or clarifications. Thank you, Benjamin Hammond The Sherwin-Williams Company Protective and Marine Group Bridge and Highway N.A.C.E Certified 11415 SSPC Certified Concrete Coating Inspector 214-336-1082 -----Andrew Harper wrote: ----- To: "swrep5896@sherwin.com" From: Andrew Harper Date: 03/28/2011 03:09PM Subject: Town of Addison Vitruvian Park Phase 1D Steel Arch Paint Ben, Our steel arch supplier (AFCO) used Carboline No. 858 zinc primer on the arches. We just want to give the owner some piece of mind that your Sherwin Williams Recoatable Epoxy Primer and High Solids Polyurethane Topcoat is compatible. Thanks for looking into this for me. Andrew Harper | Project Coordinator AUSTIN BRIDGE & ROAD IH30/PGBT Interchange Lake Ray Hubbard – 608006 Addison Vitruvian Park Bridges - 610007 1013 I-30 East Garland, TX 75043 214.886.6666 (M) 972.240.6200 (O) 972.240.6204 (F)