Substrates and Paints Drexel Metals Corporation  204 Railroad Drive  Ivyland, PA 18974 Brian Partyka  www.drexmet.com
Substrates and Paints <ul><li>Substrates </li></ul><ul><ul><li>Hot Dipped Galvanized  </li></ul></ul><ul><ul><li>Galvalume...
Substrates <ul><li>Coated Carbon Steel  </li></ul><ul><ul><li>Hot Dipped Galvanized  </li></ul></ul><ul><ul><ul><li>G-90 <...
Hot Dipped Galvanized  <ul><li>Zinc Coated Carbon Steel sheet that meets ASTM A653-96. </li></ul><ul><li>Coating Weight of...
Galvanic Protection   <ul><li>Coating is 100% zinc by volume </li></ul><ul><li>Hot Dipped Galvanized offers a desirable  c...
Galvalume  <ul><li>By volume, Galvalume contains 80% aluminum in  the coating with the other 20% containing zinc and silic...
Galvalume vs. HD Galvanized <ul><li>Hot Dipped Galvanized  </li></ul><ul><ul><li>After 18 years, G-90 Galvanized exhibits ...
Corrosion Losses of Galvalume and Galvanized Sheets after 13 years exposure Corrosion Loss (Mils)
Salt Spray Corrosion Resistance <ul><li>With cut edges protected, the coating on Galvalume AZ50 lasts 5 to 10 times longer...
Salt Spray test concerning the amount of hours to first significant rust Total # of Hours
Aluminum  <ul><li>Conforms to ASTM B209-96. </li></ul><ul><li>Either:   </li></ul><ul><ul><li>Direct cast from ingot. </li...
Aluminum Alloys and Tempers <ul><li>Standard alloys for roofing and cladding;  </li></ul><ul><ul><li>3003 </li></ul></ul><...
Painted Products
 
What a painted product consists of:
Pre-Treatments <ul><li>A liquid used to produce a corrosion-resistant, organically bonded coating on Aluminum, Galvalume a...
Primer <ul><li>The base layer of the paint applied by the coater to the pretreated substrate.  </li></ul><ul><li>It is for...
What are the 4 major components that make up a paint systems <ul><li>Resin  </li></ul><ul><li>Pigments </li></ul><ul><li>S...
Resin Systems  <ul><li>The most important part of any paint system. </li></ul><ul><li>The liquid glue of the paint system ...
Pigments <ul><li>Small solid particles added to a paint to enhance appearance by providing color and /or improve physical ...
Solvents <ul><li>This is the vehicle by which the pigment is transported to the metal surface  </li></ul><ul><li>Actually ...
Additives <ul><li>Any number of chemicals added to the paint, usually in small amounts to bring special effects to the pai...
Functions of the Components Pigment  Resin Solvent Additive Aesthetics Properties Application Enhancement  Color Durabilit...
Types of Paint Systems used in the field. <ul><li>Polyester  </li></ul><ul><li>Siliconized Polyester </li></ul><ul><li>Pol...
Polyester Paint Systems <ul><li>A generic polymer coating with limited weathering performance. </li></ul><ul><li>Generally...
Siliconized Polyester Paint Systems   <ul><li>A generic coating type that represents a wide range of topcoats used on prep...
Polyvinylidene Fluoride (PVDF)   <ul><li>The resin, which is a fluoropolymer,  that is used as the major vehicle (base res...
Why PVDF is # 1
How it works! <ul><li>Advance molecular structural of PVDF utilizes the following: </li></ul><ul><ul><li>carbon-fluorine b...
PVDF Coatings Architectural Coating that extends your buildings life, and keeps it looking the way you designed it!
PVDF vs. Other Coatings
PVDF vs. Other Coatings
Weathering Properties
 
Physical Properties
Chemical Properties
 
 
 
 
Superior Chalking and Weathering Resistance <ul><li>These panels exposed at an independent test fence facility in Southern...
Elements of a PVDF Warranty <ul><li>PVDF Paint Warranties  cover  the following for 20 years: </li></ul><ul><ul><li>Film I...
Tobago Hilton   Manufacture and Contractor:   Weathershield Caribbean Ltd.   Trinidad and Tobago
DREXEL METALS CORPORATION   offers Akzo Nobel Trinar coated products!
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  • Corrosion Loss (Mils) Severe Marine – 80 foot Marine
  • Mar rate – Kynar is more flexible and softer Polyester – SMP Harder resin
  • Drexel Substrates And Paints Revised

    1. 1. Substrates and Paints Drexel Metals Corporation 204 Railroad Drive Ivyland, PA 18974 Brian Partyka www.drexmet.com
    2. 2. Substrates and Paints <ul><li>Substrates </li></ul><ul><ul><li>Hot Dipped Galvanized </li></ul></ul><ul><ul><li>Galvalume </li></ul></ul><ul><ul><li>Aluminum </li></ul></ul><ul><li>Paint </li></ul><ul><ul><li>The importance of Pre-Treatments </li></ul></ul><ul><ul><li>The importance of Primers </li></ul></ul><ul><ul><li>Paint Systems used in our industry. </li></ul></ul><ul><ul><ul><li>Polyesters </li></ul></ul></ul><ul><ul><ul><li>Siliconized Polyester </li></ul></ul></ul><ul><ul><ul><li>Polyvinylidene Fluoride (PVDF) </li></ul></ul></ul><ul><ul><ul><li>Plastisols </li></ul></ul></ul>
    3. 3. Substrates <ul><li>Coated Carbon Steel </li></ul><ul><ul><li>Hot Dipped Galvanized </li></ul></ul><ul><ul><ul><li>G-90 </li></ul></ul></ul><ul><ul><li>Galvalume </li></ul></ul><ul><ul><ul><li>AZ50 </li></ul></ul></ul><ul><li>Aluminum </li></ul><ul><ul><li>Alloy 3003 – 3004 - 3105 </li></ul></ul><ul><ul><li>Temper – H14 – H24 – H34 </li></ul></ul>
    4. 4. Hot Dipped Galvanized <ul><li>Zinc Coated Carbon Steel sheet that meets ASTM A653-96. </li></ul><ul><li>Coating Weight of G-90 </li></ul><ul><ul><li>By volume consists of a minimum thickness of .80 oz of zinc per Sq Ft for both sides of the steel sheet. </li></ul></ul><ul><li>Great Sacrificial Advantages </li></ul><ul><li>No applicable corrosion warranty </li></ul>
    5. 5. Galvanic Protection <ul><li>Coating is 100% zinc by volume </li></ul><ul><li>Hot Dipped Galvanized offers a desirable characteristic with respect to corrosion by sacrificing itself to protect slit edges and scratches. </li></ul><ul><li>Generally has a smoother surface for paint application purposes. </li></ul><ul><li>Superior Formability. </li></ul>
    6. 6. Galvalume <ul><li>By volume, Galvalume contains 80% aluminum in the coating with the other 20% containing zinc and silicon additive. </li></ul><ul><li>Aluminum/Zinc Coated Carbon steel sheet that meets ASTM A792-96. </li></ul><ul><li>By volume consists of a minimum thickness of .50 oz per Sq Ft of AL/Zn for both sides of the steel sheet. </li></ul><ul><li>Coating Weight – AZ50 or AZ55 </li></ul><ul><li>Great Corrosion Properties </li></ul><ul><li>Good Sacrificial Advantages </li></ul><ul><li>20 year 6 month warranty against corrosion </li></ul>
    7. 7. Galvalume vs. HD Galvanized <ul><li>Hot Dipped Galvanized </li></ul><ul><ul><li>After 18 years, G-90 Galvanized exhibits red rust </li></ul></ul><ul><li>Galvalume </li></ul><ul><ul><li>Galvalume after 23 years – No major sign of red rust. </li></ul></ul>Moderate Marine / Rural
    8. 8. Corrosion Losses of Galvalume and Galvanized Sheets after 13 years exposure Corrosion Loss (Mils)
    9. 9. Salt Spray Corrosion Resistance <ul><li>With cut edges protected, the coating on Galvalume AZ50 lasts 5 to 10 times longer than the coating on G90 HD Galvanized. </li></ul><ul><li>Salt spray tests conducted with bare cut edges exposed, the corrosion resistance is typically three to four times that of G90 HD Galvanized. </li></ul>
    10. 10. Salt Spray test concerning the amount of hours to first significant rust Total # of Hours
    11. 11. Aluminum <ul><li>Conforms to ASTM B209-96. </li></ul><ul><li>Either: </li></ul><ul><ul><li>Direct cast from ingot. </li></ul></ul><ul><ul><li>Continuous cast from recycled scrap. </li></ul></ul><ul><li>Advantages: </li></ul><ul><ul><li>Light in weight. </li></ul></ul><ul><ul><li>Highly resistant to corrosion. </li></ul></ul><ul><ul><li>Excellent reflector of light and heat. </li></ul></ul><ul><ul><li>Highly workable and easy to form. </li></ul></ul>
    12. 12. Aluminum Alloys and Tempers <ul><li>Standard alloys for roofing and cladding; </li></ul><ul><ul><li>3003 </li></ul></ul><ul><ul><li>3004 </li></ul></ul><ul><ul><li>3105 </li></ul></ul><ul><ul><li>5052 </li></ul></ul><ul><li>Commonly used tempers; </li></ul><ul><ul><li>H 14 </li></ul></ul><ul><ul><li>H 24 </li></ul></ul><ul><ul><li>H 34 </li></ul></ul>
    13. 13. Painted Products
    14. 15. What a painted product consists of:
    15. 16. Pre-Treatments <ul><li>A liquid used to produce a corrosion-resistant, organically bonded coating on Aluminum, Galvalume and Galvanized. </li></ul><ul><li>Incorporating a chromate rinse which is the major agent that allows the primer to bond to the substrate and helps prevent corrosion. </li></ul><ul><li>Benefits of Pretreatments: </li></ul><ul><ul><li>Provides superior long term corrosion. </li></ul></ul><ul><ul><li>Effective on Aluminum, Galvalume and Galvanized. </li></ul></ul><ul><ul><li>Coating quality is consistently maintained. </li></ul></ul>
    16. 17. Primer <ul><li>The base layer of the paint applied by the coater to the pretreated substrate. </li></ul><ul><li>It is formulated to provide corrosion protection to the base metal and to enhance adhesion between the top coat (paint) and the base metal. </li></ul><ul><li>Standard Primers: </li></ul><ul><ul><li>Water Based </li></ul></ul><ul><ul><li>Urethane Based </li></ul></ul>
    17. 18. What are the 4 major components that make up a paint systems <ul><li>Resin </li></ul><ul><li>Pigments </li></ul><ul><li>Solvents </li></ul><ul><li>Additives </li></ul>
    18. 19. Resin Systems <ul><li>The most important part of any paint system. </li></ul><ul><li>The liquid glue of the paint system that surrounds the pigment particles, protecting them from environmental pollutants such as airborne chemicals and salt. </li></ul><ul><li>Types of resin systems: </li></ul><ul><ul><li>Polyester </li></ul></ul><ul><ul><li>Siliconized Polyester </li></ul></ul><ul><ul><li>Polyvinylidene Fluoride (PVDF) </li></ul></ul>
    19. 20. Pigments <ul><li>Small solid particles added to a paint to enhance appearance by providing color and /or improve physical (functional) properties of a paint. </li></ul><ul><li>Pigments are protected by the resin system. </li></ul><ul><li>Types of Pigments: </li></ul><ul><ul><li>Ceramic Pigments </li></ul></ul><ul><ul><li>Earth Tones Pigments </li></ul></ul><ul><ul><li>Organic Pigments </li></ul></ul><ul><li>UV Reflective Pigments </li></ul>
    20. 21. Solvents <ul><li>This is the vehicle by which the pigment is transported to the metal surface </li></ul><ul><li>Actually evaporate during the curing process to permit the the formation of a paint film. </li></ul>
    21. 22. Additives <ul><li>Any number of chemicals added to the paint, usually in small amounts to bring special effects to the paint. </li></ul>
    22. 23. Functions of the Components Pigment Resin Solvent Additive Aesthetics Properties Application Enhancement Color Durability Stability Mar Resistance Gloss Adhesion Viscosity Curing Agent Adhesion Flexibility Compatibility Settling Film Strength Color Retention Film Control Dispersion Water Resistance Abrasion Adhesion Anti-Freeze Corrosion Resistance Impact Resistance Leveling De-Foaming
    23. 24. Types of Paint Systems used in the field. <ul><li>Polyester </li></ul><ul><li>Siliconized Polyester </li></ul><ul><li>Polyvinylidene Fluoride (PVDF) </li></ul><ul><li>Plastisols </li></ul>
    24. 25. Polyester Paint Systems <ul><li>A generic polymer coating with limited weathering performance. </li></ul><ul><li>Generally Using Organic Pigments. </li></ul><ul><ul><li>End Uses: </li></ul></ul><ul><ul><ul><li>Interior Applications </li></ul></ul></ul><ul><ul><ul><ul><li>Home Appliances </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Lighting Fixtures </li></ul></ul></ul></ul><ul><ul><ul><ul><li>Wall Panels </li></ul></ul></ul></ul>
    25. 26. Siliconized Polyester Paint Systems <ul><li>A generic coating type that represents a wide range of topcoats used on prepainted metal in construction. </li></ul><ul><li>The silicon extends the service life of the base polymer and improves weathering. </li></ul><ul><li>Generally Using Organic and Ceramic Pigments. </li></ul><ul><ul><li>End Uses: </li></ul></ul><ul><ul><ul><li>Metal Building Components. </li></ul></ul></ul><ul><ul><ul><li>Agricultural and Corrugated panels. </li></ul></ul></ul>
    26. 27. Polyvinylidene Fluoride (PVDF) <ul><li>The resin, which is a fluoropolymer, that is used as the major vehicle (base resin) in the paint system. </li></ul><ul><li>Paint chemistry of 70% by weight of PVDF resin. </li></ul><ul><li>Exhibits superior </li></ul><ul><ul><li>Color retention </li></ul></ul><ul><ul><li>Chalk resistance </li></ul></ul><ul><ul><li>Corrosion Resistance </li></ul></ul><ul><ul><li>Flexibility </li></ul></ul><ul><ul><li>Stain Resistance </li></ul></ul><ul><ul><li>Overall exterior durability </li></ul></ul>
    27. 28. Why PVDF is # 1
    28. 29. How it works! <ul><li>Advance molecular structural of PVDF utilizes the following: </li></ul><ul><ul><li>carbon-fluorine bond, the strongest bond known in the chemical world combined with a carbon-hydrogen bond, which creates a structure that is extremely durable. </li></ul></ul>
    29. 30. PVDF Coatings Architectural Coating that extends your buildings life, and keeps it looking the way you designed it!
    30. 31. PVDF vs. Other Coatings
    31. 32. PVDF vs. Other Coatings
    32. 33. Weathering Properties
    33. 35. Physical Properties
    34. 36. Chemical Properties
    35. 41. Superior Chalking and Weathering Resistance <ul><li>These panels exposed at an independent test fence facility in Southern Florida clearly demonstrate the superior weatherability of PVDF. </li></ul>
    36. 42. Elements of a PVDF Warranty <ul><li>PVDF Paint Warranties cover the following for 20 years: </li></ul><ul><ul><li>Film Integrity </li></ul></ul><ul><ul><li>Color Fade </li></ul></ul><ul><ul><li>Chalk Resistance </li></ul></ul><ul><ul><li>Delamination </li></ul></ul><ul><li>PVDF Paint Warranties do not cover the following: </li></ul><ul><ul><li>Corrosion/degradation of the substrate </li></ul></ul>
    37. 43. Tobago Hilton Manufacture and Contractor: Weathershield Caribbean Ltd. Trinidad and Tobago
    38. 44. DREXEL METALS CORPORATION offers Akzo Nobel Trinar coated products!
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