Source Reduction of Toxics Cristy Williamson May 10

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

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

ESH MANAGEMENT SYSTEM ACT PLAN CHECK DO

RISK IDENTIFICATION

RISK REDUCTION • P 2 results in risk reduction through: – Incorporation into design • Design for Environment – – Material Substitution Recycling Sharing Best Practices Etc.

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

P 2 OBJECTIVES

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.

REDUCTION IN TARGETED PT CHEMICALS • Reduction in Class II ODCs. – Remove products containing HCFC-141 b. – Focus: Mold-Release Agents – Old Miller-Stephenson Chemical Products: • MS-143 DF bulk liquid • MS-122 DF aerosol • MS-122 N/CO 2 aerosol

REDUCTION IN TARGETED PT CHEMICALS • New Miller-Stephenson Chemical Products: – MS-143 XD bulk liquid – MS-122 AD 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

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

NON-CHROMIUM COATING SYSTEMS Comparison of Deft MIL-P-85582 and MIL-P-23377 Non-Chrome Primers Deft 44 GN 098 Deft 02 GN 084 Water Reducible Solvent-Borne VOC = 330 g/L VOC = 337 g/L Sec-Butyl Alcohol: 12% Benzene, 1 -chloro-4 -trifluoro methyl: 16% Nitroethane: 10% Diethyl benzene: . 01% Mn. PK: 12% MAK: 3%

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%

NON-CHROMIUM CONVERSION COATING • Evaluation of non-chromated coatings has been on-going since the 1990 s. – 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

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) Mc. Gee Industries Inc. MAC-507 (0 g/L VOC) Zyvax Inc. Water Works Departure (0 g/L VOC) Henkel Frekote 710 -LV (115 g/L)

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

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)

LOW-VOC WIPE SOLVENT 2005 VOC EMISSIONS 4, 857. 29 lbs 28% Other VOC IPA VOC 21, 540 lbs 55% 17, 394 lbs 45% 38, 934 lbs 12, 537 lbs 72%

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

LOW-VOC WIPE SOLVENT

LOW-VOC WIPE SOLVENT • Two products have passed final qualification requirements: 1) 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.

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

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