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Source Reduction of Toxics

Source Reduction of Toxics. Cristy Williamson. May 10, 2007. Lockheed Martin Aeronautics Company. HQ – Fort Worth, TX. Marietta, GA. Air Force Plant 42. SITE 2 U-2 Upgrades/ PDM/ Flight Test. SITE 7. F-117 Upgrades/ PDM/Flight Test. SITE 8 Shipping/Receiving. LM Aero Plant 10. R&D

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Source Reduction of Toxics

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  1. Source Reduction of Toxics Cristy Williamson May 10, 2007 Lockheed Martin Aeronautics Company

  2. HQ – Fort Worth, TX Marietta, GA Air Force Plant 42 SITE 2U-2 Upgrades/ PDM/ Flight Test SITE 7 F-117 Upgrades/ PDM/Flight Test SITE 8Shipping/Receiving LM Aero Plant 10 • R&D • Prototyping • Classified • Composites

  3. ESH MANAGEMENT SYSTEM ACT PLAN CHECK DO

  4. RISK IDENTIFICATION

  5. RISKREDUCTION • P2 results in risk reduction through: • Incorporation into design • Design for Environment • Material Substitution • Recycling • Sharing Best Practices • Etc.

  6. PERFORMANCE TRACK COMMITMENTS REDUCE TOXIC CHEMICAL USAGE BY 10% PER YEAR (chrome and selected solvents) Baseline: 7,924.0 lbs. Goal: 5,800.0 lbs. 1313.8

  7. P2 OBJECTIVES

  8. REDUCTION IN TARGETED PT CHEMICALS • Specialty Coating Reformulation: • Reduction in Methyl Ethyl Ketone (MEK). • Electrodag 501/502 are MEK-laden. • Alternative: Lower-VOC Water-Based Specialty Coating.

  9. REDUCTION IN TARGETED PT CHEMICALS • Reduction in Class II ODCs. • Remove products containing HCFC-141b. • Focus: Mold-Release Agents • Old Miller-Stephenson Chemical Products: • MS-143DF bulk liquid • MS-122DF aerosol • MS-122N/CO2 aerosol

  10. REDUCTION IN TARGETED PT CHEMICALS • New Miller-Stephenson Chemical Products: • MS-143XD bulk liquid • MS-122AD aerosol • Testing included: • Ease with which urethane part releases from tool/coupon • Appearance of urethane part • Hardness testing of cured urethanes • Crosscut tape adhesion testing on painted urethanes • Shop-employee feedback

  11. NON-CHROMIUM COATING SYSTEMS 2000 Hour Neutral Salt Spray Corrosion Resistance * Turco 4215-NCLT alkaline clean, DeOxit 22L deoxidizer. ** Surface prep by Scotch-Brite/Bon-Ami. *** Turco 4215-NCLT alkaline clean, Metal Glo 6 deoxidizer.

  12. NON-CHROMIUM COATING SYSTEMS Comparison of Deft MIL-P-85582 and MIL-P-23377 Non-Chrome Primers Deft 02GN084 Solvent-Borne VOC = 337 g/L Benzene,1-chloro-4 -trifluoro methyl: 16% MnPK: 12% MAK: 3% Deft 44GN098 Water Reducible VOC = 330 g/L Sec-Butyl Alcohol: 12% Nitroethane: 10% Diethyl benzene: .01%

  13. NON-CHROMIUM COATING SYSTEMS Comparison of Hentzen and Deft MIL-P-23377 Primers Hentzen 16708 Solvent-Borne VOC = 340 g/L MAK: 25% IPA: 5% Benzyl alcohol: 5% MIBK: 3% MEK: 1%

  14. NON-CHROMIUM CONVERSION COATING • Evaluation of non-chromated coatings has been on-going since the 1990s. • Primer successes on aircraft. • Commercial products are not quite there yet, but are getting very close. • Our testing is an effort to identify a a total non-chromated system (pretreatment and coatings). Contact: John Beale, john.beale@lmco.com, (661) 572-7920

  15. LOW-VOC MOLD-RELEASE • Test & evaluation conducted in concurrence with low-VOC wipe-solvent research. • More specifics on following slides. • Effort is to identify replacement for: • Henkel Frekote 44-NC (746 g/L VOC) • Henkel Frekote 700-NC (754 g/L VOC) • Products Evaluated: • Henkel Frekote 900-WB / 901-WB (0 g/L VOC) • McGee Industries Inc. MAC-507 (0 g/L VOC) • Zyvax Inc. Water Works Departure (0 g/L VOC) • Henkel Frekote 710-LV (115 g/L)

  16. LOW-VOC MOLD-RELEASE • Frekote 710-LV To-Do List: • Test & Evaluate • Conduct Shop Trials • Procure in Presaturated Wipers • Change Specifications

  17. LOW-VOC WIPE SOLVENT • Previous Approach – Focus on toxics • Current Approach – Focus on quantity (usage) • Where can we get the biggest “bang for our buck”? • Answer: Isopropyl Alcohol (IPA)

  18. LOW-VOC WIPE SOLVENT 2005 VOC EMISSIONS Other VOC IPA VOC

  19. LOW-VOC WIPE SOLVENT • Test & Evaluation - Focus on tool-cleaning operations. • Steel • Aluminum • Composite • Foam • Approximately 30 cleaners/dilutions evaluated. • Test and Evaluation included: • Visual evaluation • Number of wipes/strokes required to remove contamination • Water-break evaluation • Corrosion testing • Fluid-soak testing • Lay-ups • Paint-adhesion testing • Lap-shear testing

  20. LOW-VOC WIPE SOLVENT

  21. LOW-VOC WIPE SOLVENT • Two products have passed final qualification requirements: • Acetone • Exempt from VOC-categorization in the local Antelope Valley Air Quality Management District. 2) Ecolink 1171 • Solvent blend containing PCBTF, methyl acetate, and d-limonene.

  22. LOW-VOC WIPE SOLVENT • Wipe-Solvent Replacement Challenges: • Institute Presaturated Wipers. • Change Specifications. • Meet Environmental and Health/Safety Requirements. • Change culture.

  23. IMPLEMENTATION Cristy gets shipped out, along with the last drums of IPA !! 

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