Source Reduction of ToxicsSource Reduction of ToxicsSource Reduction of ToxicsSource Reduction of Toxics

May 10, 2007May 10, 2007

Lockheed Martin Aeronautics Company

Cristy WilliamsonCristy Williamson

SITE 2SITE 2U-2 Upgrades/ U-2 Upgrades/

PDM/ Flight TestPDM/ Flight TestSITE 7SITE 7

SITE 8SITE 8Shipping/ReceivingShipping/Receiving

Air Force Air Force Plant 42Plant 42

LM Aero LM Aero Plant 10Plant 10

Marietta, GA

HQ – Fort Worth, TX

• R&D• Prototyping• Classified• Composites

F-117 Upgrades/ F-117 Upgrades/ PDM/Flight TestPDM/Flight Test

ESH MANAGEMENT SYSTEMESH MANAGEMENT SYSTEM

PLANCHECK

DO

ACT

RISK IDENTIFICATIONRISK IDENTIFICATION

• P2 results in risk reduction through:– Incorporation into design

• Design for Environment

– Material Substitution– Recycling– Sharing Best Practices– Etc.

RISKRISK REDUCTIONREDUCTION

REDUCE TOXIC CHEMICAL USAGE BY 10% PER YEAR

(chrome and selected solvents)

Baseline: 7,924.0 lbs.

Goal: 5,800.0 lbs.

ANNUAL TOTAL 8,393.2 6,181.8 % REDUCTION -5.9 21.9

YEAR 2005 2006 2007

PERFORMANCE TRACK COMMITMENTSPERFORMANCE TRACK COMMITMENTS

1313.8

P2 OBJECTIVESP2 OBJECTIVES

• 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 CHEMICALSREDUCTION 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

REDUCTION IN TARGETED PT CHEMICALSREDUCTION 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

REDUCTION IN TARGETED PT CHEMICALSREDUCTION IN TARGETED PT CHEMICALS

NON-CHROMIUM COATING SYSTEMSNON-CHROMIUM COATING SYSTEMS

* Turco 4215-NCLT alkaline clean, DeOxit 22L deoxidizer.

** Surface prep by Scotch-Brite/Bon-Ami.

*** Turco 4215-NCLT alkaline clean, Metal Glo 6 deoxidizer.

2000 Hour Neutral Salt Spray Corrosion Resistance

NON-CHROMIUM COATING SYSTEMSNON-CHROMIUM COATING SYSTEMS

Comparison of Deft MIL-P-85582 and MIL-P-23377 Non-Chrome Primers

Deft 44GN098

Water Reducible

VOC = 330 g/L

Sec-Butyl Alcohol: 12%

Nitroethane: 10%

Diethyl benzene: .01%

Deft 02GN084

Solvent-Borne

VOC = 337 g/L

Benzene,1-chloro-4 -trifluoro methyl: 16%

MnPK: 12%

MAK: 3%

NON-CHROMIUM COATING SYSTEMSNON-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%

• 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).

NON-CHROMIUM CONVERSION COATINGNON-CHROMIUM CONVERSION COATING

Contact: John Beale, john.beale@lmco.com, (661) 572- 7920

LOW-VOC MOLD-RELEASELOW-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)

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

LOW-VOC MOLD-RELEASELOW-VOC MOLD-RELEASE

• 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 SOLVENTLOW-VOC WIPE SOLVENT

LOW-VOC WIPE SOLVENT LOW-VOC WIPE SOLVENT

2005 VOC EMISSIONS

Other VOC21,540 lbs

55%

IPA VOC17,394 lbs

45%

38,934 lbs

4,857.29 lbs28%

12,537 lbs72%

• 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

LOW-VOC WIPE SOLVENT LOW-VOC WIPE SOLVENT

LOW-VOC WIPE SOLVENTLOW-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.

• Wipe-Solvent Replacement Challenges:– Institute Presaturated Wipers.– Change Specifications.– Meet Environmental and Health/Safety

Requirements.– Change culture.

LOW-VOC WIPE SOLVENTLOW-VOC WIPE SOLVENT

IMPLEMENTATIONIMPLEMENTATION

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