1 / 23

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

Audrey
Download Presentation

Source Reduction of Toxics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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 !! 

More Related