DISCLAIMER

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! DISCLAIMER !
Due to confidentiality agreements with my place
of employment this presentation will be text
heavy questions about specific chemical
compounds cannot be answered queries into exact
laboratory technique will not be discussed.
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What I Did on my Summer Vacationby Sweet Steve
Or, Fun With Aluminum
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I worked at . . .

• Silberline Manufacturing Co. Inc.
• Based in the heart of Anthracite Coal Region-
  Tamaqua, Pennsylvania
• Operates plants in Lansford, Pa Decatur, In
  Leven, Fife, Scotland
• Produces Aluminum pigments

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Uses of Aluminum pigment?

• Aesthetics
• Metallic Inks
• Industrial Coatings
• Plastics

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Chemical/Physical Compostion of Pigment
Metal purity 99.3-99.97 Metal
impurities Silicon
00.5-0.25 Iron 0.1-0.4 Hydrocarbon
Solvent 20-40 Flash point 105-110
Degrees F Density (g/cm3) 1.38-1.70
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Physical Properties

• Opaque
• Reflective
• Visible
• UV and IR
• Size
• 0.1-2.0 mm thick
• 0.5-200 mm in diameter
• Shape
• Cornflake
• Pancake

Electron micrograph of L-399AR paste
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Aesthetic Properties

• Hiding
• Color
• Sparkle
• Flop
• Gloss

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Industrial Application

• Coating Recipe
• 3 Tablespoons Aluminium paste
• Disperse in TSA
• thermoset acrylic
• aromatic organic solvents
• (Strive for a thick cream-like consistency)
  
• Add a solvent
• Normally we use xylene
• On warm days, we use a 41 mixture of
  xyleneSolvesso 100
• Viola! We are ready to spray panels

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What I Actually Did

• Made Basecoat
• utilized previous recipe
• Made Clearcoat
• TSA and solvent of my choice
• nice glossy finish
• Spray display panels for customers
• Special projects
• Varnish formulation, dispersion, and analysis
• Cut boxes of rags

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Safety Concerns

• Toxic Solvents
• Toluene
• Carcinogenic
• Water
• Reacts with Aluminum metal
• Moisture levels gt0.15 in coatings can pop a can
• Biological impact

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Fin