USS DETROIT (AOE-4) SECNAV/NAVSEA Capital Investment Labor Initiative (CILI) 1-Year Evaluation Bilge Application A test application in the Port Shaft Alley Bilge OF ALOCIT AQUACOAT 28.15 EPOXY COATING FINISH Original Application February - April 2000 1 Year Follow-up Survey May 2001 EXECUTIVE SUMMARY Corrosion Engineering Services, Inc. (CES) was tasked by the Commander Navel Sea Systems Command (NA VSEASYSCOM) to document the 1-year follow-up inspection of the port shaft alley bilge, 5-242-2-0 on USS Detroit (AGE 4). The ALOCIT Aquacoat 28.15,100% Solids Epoxy system was the coating applied to the bilge in April 2000. Original application was accomplished while the ship was in availability at Metro Machine Corporation of Pennsylvania at Philadelphia Naval Shipyard. CES photographed and documented the bilge conditions as of May 2001 while the ship was inport Naval Weapons Station, Earl, New Jersey. The original specification outlined only a coat to the bilge area of the shaft alley (700 Sq. Ft.). Due to the overall deterioration of all surfaces the COMNAVSURFLANT Port Engineer requested that the scope be expanded to include the bulkheads and overhead above the bilge as well (an additional 1300 Ft. Sq.). This was accomplished. Corrosion Engineering Services, Inc. (CES) served as the prime contractor and also accomplished the in process control and documentation. United Coatings Corporation (UCC) performed the work for CES. SUPSHIP Portsmouth, Colts Neck Detachment, followed the project closely and attended all checkpoints. NAVSEA Task Group Instruction (TGI) Number 631-63111-003A Bilge Preservation - ALOCIT Aquacoat 28.15 (By: Power Tool Cleaning) served as the specification and was closely followed. The work specification requirements included: Surface preparation: SSPC SP-11 Power Tool Cleaning to bare metal. Coating Application: (All material is ALOCIT Aquacoat 28.15 in 3 colors) Bilge area: Prime coat White 5-7 mils WFT/DFT Stripe coat Gray 5-7 mils WFT/DFT Finish coat Terracotta 5-7 mils WFT/DFT Above Bilge: Prime coat White 5-7 mils WFT/DFT Stripe coat Gray 5-7 mils WFT/DFT Finish coat White 5-7 mils WFT/DFT The subcontractor, UCC, was tasked to provide the in-process OA. Since the CES representative was on hand throughout the process, the OA became a joint effort that produced very satisfying results with no surprises. SUPSHIP attended all checkpoints and validated the results. The test application was successfully completed with the Shaft Alley turned over to Ship's Force in April 2000. The shaft alley was surveyed May 2001 while USS Detroit was at home port at NWS Earle, NJ. The Alocit Aquacoat coatina system is in immaculate condition with no deterioration of any kind noted. There is standing salt water in the sump area and some mold and mildew growing (the ventilation in this space is poor). There was no corrosion of any type noted. Much of the steel in this space (bilge) is heavily pitted and without this re-preservation would be holed through (some steel replacement was accomplished in conjunction with the re-preservation in 2000). The bilge is in excellent shape with no corrosion or coatings failure noted Forward Stb’d corner of the bilge. The sump area shows no sign of any deterioration Due to continual damp conditions and minimum ventilation mold and mildew can be found The Alocit Aquacoat is performing flawlessly in severe service ALOCIT SYSTEMS HIGH PERFORMANCE APPLICATION REPORT PAINTS AND COATINGS USS DETROIT USS DETROIT STATISTICS (AOE 4) Class: AOE 1 FAST COMBAT Fleet: Atlantic Status: Active SUPPORT SHIP Homeport: WPNSTA. EARLE, NJ Date status changed: 03/28/1970 Test application for US Navy carried out by Builder: NAV SY/PUGET SND US Navy contractors in shaft alley bilge of Delivery Date: 07/31/1970 USS Detroit after extensive preliminary Age (since delivery): 30.0 years Keel Date: 11/29/1966 assessment of product. Pictures overleaf Commission Date: 03/28/1970 show surface prep. and coating application. Launch Date: 06/21/1969 Age (since launch) 31.1 years Overall Length: 796 ft Waterline Length: 770 ft Extreme Beam: 107 ft Waterline Beam: 107 ft Max Navigational Draft: 39 ft Draft Limit: 41 ft Light Displacement: 20144 tons Full Displacement: 51964 tons Dead Weight: 31820 tons Hull Material: Steel hull & S/truct Number of Propellers: 2 Propulsion Type: Steam Turbines Officers: 48 Enlisted: 678 PREPARATION & SYSTEM USED ! The surface prep was SSPC-SP-11 accomplished with needle guns ! The space was degreased SP-1 first ! After SP-11 was complete, the bilge area tested very high for chlorides ! The bilge area was degreased and pressure washed twice (Zep 50 Degreaser and 3000 PSI with Turbo nozzle). ! All surfaces were quickly dried, solvent cleaned and chloride tested. Chloride levels were below 2ug./cm2 ! The surface profile averaged 2-3 mils ! All paint application was by brush and roll ! The entire space was primed with 28.15 white ! The entire space was stripe coated 28.15 Gray ! The bilge area was finished 28.15 Terracotta ! Above the bilge was finished 28.15 White ! The avg DFT was 21 mils ! Pull tests in the bilge area exceeded 1000 psi (the limit of the gauge). A&E SYSTEMS ALOCIT & ENVIROPEEL www.ae-sys.com Visit our website at www.ae-sys.com or contact any A&E Systems office for technical advice and availability in your area. AUSTRALIA A&E Systems PTY Ltd 5/28 Clark Court, Bibra Lake, Perth WA 6163, Australia Tel: +61 (0)8 94183688 Fax: +61 (0)8 94183588 Email: [email protected] EUROPE A&E Systems Ltd 3 Charles Wood Road Dereham, NR19 1SX, UK Tel: +44 (0)1362 694915 Fax: +44 (0)1362 695350 Email: [email protected] MALAYSIA A&E Systems Sdn Bhd 26 Jalan Pendaftar U1/54 Seksyen U1, 40150 Shah Alam Selangor Darul Ehsan Malaysia Tel : +60 (0)3-5569 4277 Fax : +60 (0)3-5569 4377 Email: [email protected] USA Alocit & Enviropeel USA 1128 South West Street Indianapolis, Indiana 46225 USA Tel: +1 317 631-9100 Fax: +1 317 631 9101 Email: [email protected] ALOCIT SYSTEMS HIGH PERFORMANCE PAINTS AND COATINGS.