Technology Applications Group, Inc. Grand Forks, North Dakota. TAGNITE The Ultimate Coating for Magnesium Sand Castings

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1 Technology Applications Group, Inc. Grand Forks, North Dakota TAGNITE The Ultimate Coating for Magnesium Sand Castings

2 TAGNITE Briefing Overview Briefing Overview Review of Immersion TAGNITE Review of Brush TAGNITE Success Story AH/MH-6 Little Bird

3 Dow 17 Approximately 1942 The Dow Chemical Company invented Dow 17 in the Early 1940 s. The electrolyte has a ph of approximately 5 and should be operated at or above 160 o Fahrenheit. CHEMICAL Concentration g/l Ammonium BiFluroide 360 Sodium Dichromate (hazardous chemical) 100 Phosphoric Acid 97

4 HAE Patent Filed 1952 HAE, named after inventor Harry A. Evangelides. The very high alkaline solution has a ph of approximately 14 and should be operated between 70 and 86 o Fahrenheit. Recommended post treatment contains approximately 20 grams per liter of Sodium Dichromate CHEMICAL Concentration (g/l) Hydroxide (extremely caustic) 120 Fluoride 35 Potassium Permanganate (strong oxidizer) 20 Aluminum Hydroxide 34 Sodium Phosphate 35

5 TAGNITE Developed in the 1990 s with the Clean Air & Clean Water Act in mind, TAGNITE was designed as a replacement coating for Dow 17 and HAE. The electrolyte s ph range is and operates below room temperature (40-60 o F), CHEMICAL Concentration (g/l) Hydroxide 4-8 Fluoride 5-10 Silicate No Chromates or Heavy Metals

6 Chemical Composition as a Percentage of Water TAGNITE HAE Dow 17 5% * chemical concentration *Approximations 25%* chemical concentration 56% * chemical concentration HAE contains heavy metals; Dow 17 contains heavy metals and chromium

7 SUPERIOR Corrosion Resistance TAGNITE HAE DOW 17 TAGNITE, HAE & Dow 17 (Type I) on magnesium alloy ZE41 after 168 hours in salt spray Only Tagnite Provides Inherent Corrosion Resistance

8 Coating Morphology Dow 17 HAE All photos shown at 500x magnification. TAGNITE

9 SUPERIOR Galvanic Corrosion Resistance TAGNITE 8200 HAE DOW 17 AZ91E sand cast magnesium test plates assembled using cadmium plated steel bolt/washer & placed in salt spray (ASTM B117) for 1000 hours.

10 Galvanic Corrosion Improvement Benefit of Rockhard Resin Seal ZE41A Alloy AZ91E Alloy Each test plate was exposed to 1000 hours of salt spray. Galvanic contact is comprised of a cadmium plated steel hardware. Both plates were Tagnite coated and wet assembled; only the ZE41A plate was Rockhard resin sealed.

11 TAGNITE PROVIDES.... Improved Corrosion Resistance Excellent Paint Base Excellent Wear Resistance Superior Galvanic Protection A Process with NO CHROMATES Proven Technology for over 10 years Affordable Technology

12 Brush TAGNITE for Touchup Repair Selective Anodization of Magnesium Parts No Chromates Environmentally Friendly (EPA DfE)

13 Brush TAGNITE Unit Consists of... Rectifier Cables and Clamps Pre-treatment Kit Brush TAGNITE Electrolyte Blister Pack Post-treatment treatment Kit

14 Brush TAGNITE Performance... Corrosion Resistance Comparable to DOW 19 Paint Adhesion Comparable to DOW 19 Compatible with Ferrous Material No Chromates (EPA DfE Designation)

15 TAGNITE Protects the MD 500/600 and H-6 H 6 Little Bird Little Bird has Approximately 9 WE43 Castings Which After 9 Years in Service are Showing No Signs of Corrosion

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17 This Label Signifies The Best Practice in Magnesium Finishing

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19 H-6 6 Little Bird Tail Rotor Gearbox Coated with Tagnite in Approximately 1997

20 H-6 6 Little Bird Tail Rotor Gearbox Coated with Tagnite in Approximately 1997

21 TAGNITE Has been Protecting the Magnesium Castings on the Apache Helicopter for Foreign Military Operators Since U.S. Army Recently Decided to Transition From Dow 17 to TAGNITE and First Orders for U.S. Army Spares Have Been Placed.

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26 Your Source for Quality Magnesium Finishing Technology Applications Group th Street South Grand Forks, North Dakota TAGNITE (phone) (fax)