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1. How Much Do You Really Know? www.pda-online.org

2. Fast Set. Can Be Walked on in Seconds No VOC's and Little to No Odor Some Systems are USDA and NSF Approved Weather Tolerant: Cures at -25ºF to 300ºF and in High Humidity Excellent Resistance to Thermal Shock Place in Service Immediately Flexible: Bridges Cracks Waterproof, Seamless and Resilient Unlimited Mil Thickness in One Application Spray, Hand Mix and Caulk Grade Materials Excellent Bond Strengths to Properly Prepared Substrates Resistant to Many Solvents, Caustics and Mild Acids Low Permeability Can be Top-Coated for Added Features Texture Can be Added for Slip Resistance Polyurea Advantages

3. Polyurea Definition • A polyurea coating / elastomer is that derived from the reaction product of an isocyanate component and a resin blend component. The isocyanate can be aromatic or aliphatic in nature. It can be monomer, polymer, or any variant reaction of isocyanates, quasi-prepolymer or a prepolymer. The prepolymer, or quasi-prepolymer, can be made of an amine-terminated polymer resin, or a hydroxyl-terminated polymer resin. • The resin blend must be made up of amine-terminated polymer resins, and/or amine-terminated chain extenders. The amine-terminated polymer resins will not have any intentional hydroxyl moieties. Any hydroxyls are the result of incomplete conversion to the amine-terminated polymer resins. The resin blend may also contain additives, or non-primary components. These additives may contain hydroxyls, such as pre-dispersed pigments in a polyol carrier. Normally, the resin blend will not contain a catalyst(s).

4. Polyurea History • 1981 • Developed for Automotive RIM • 1986 • Polyurea Spray Systems Developed • 1987 • Polyurea Spray Technology Introduced to Industry • 1988 • First Commercial Use

5. Who Benefits from the PDA? • The Polyurea Development Association (PDA) is a trade association comprised of raw material suppliers, system formulators, equipment manufacturers, distributors, sales reps, contractors, consultants, academia, and end-users. • Formed in 2000 • Mission Statement • “To promote market awareness, understanding and acceptance of Polyurea technology through the development of education programs, product standards, safety and environmental and use recommendations”

6. Association Objectives • Develop product certification and use standards • Act as a “clearing house” for dissemination of Polyurea questions and information • Develop educational, safety and training programs • Develop marketing programs to promote Polyurea applications and benefits • Host Annual Polyurea Conference and Exhibit

7. Systems Available • Aromatic Based Spray Formulations • Aliphatic Color Stable Based Spray Formulations • Slow Cure Joint Sealants • Brush Grade Systems for Repair

8. Performance Disclaimer • All Polyurea systems are not equal • Physical Properties and Performance Ratings are affected by formulation and application parameters • Consult your Polyurea supplier for exact physical properties and performance ratings for each individual system NOTICE: All statements, information and data given herein are believed to be accurate and reliable but are presented without guarantee, warranty or responsibility of any kind expressed or implied. Statements or suggestions concerning physical properties and/or possible use of Polyurea and are made without representation or warranty that any such use is free of patent infringement, and are not recommendations to infringe any patent. The user should not assume that all safety measures are indicated or that other measures may not be required.

9. Performance Comparison Performance TypePolyurea Polyurethane Polyester Epoxy Vinyl Ester Acrylic Polysulfide Physical strength Low-High Low-Mid High High High Mid-High Low-Mid Elongation High High Low Low Low Low-Mid High Impact resistance High Mid-High Mid Mid Mid Mid-High Mid-High Abrasion resistance High Mid-High Mid-High Mid-High Mid-High Mid-High Mid Adhesion to concrete Low-High Low-Mid Mid High Mid Low-Mid Low-Mid Cure shrinkage Low Low High Low High High Low Permeability Low Mid-High Low Low Low Low-Mid Mid-High UV Resistance Mid-High Low-High Mid-High Low Mid High High Creep Low High Low-Mid Low-Mid Low-Mid Low-Mid High Temperature limit Low-High Mid Low-Mid Mid-High Mid-High Mid Low-Mid Chemical Resistance Mineral acids Low-Mid Low-Mid Mid-High Mid-High Mid-High Mid Low-Mid Organic acids Mid Low-Mid High Mid High Mid Low-Mid Alkalis Mid-High Low-Mid Mid High High High Low-Mid Chlorinated solvents Low-Mid Low-Mid Low-High Low-High Mid-High Low-Mid Low-Mid Oxygenated solvents Low-Mid Low-Mid Low-High Low-High Mid-High Low-Mid Low-Mid Hydrocarbon solvents Low-Mid Low-Mid Mid-High Mid-High Mid-High Low-High Low-Mid Salts High Mid-High High High High High Mid-High Water High Low-High Mid-High Mid-High Mid-High Mid-High Low-High

10. Typical Physical Properties Tensile Strength, psi up to 4000 Shore Hardness A 30 to D 65 Elongation, % up to 1000 Tear Strength, pli 250 to 600 100% Modulus, psi 500 to 2000 Burst Strength, psi 250 to 500 Flex/Crack Bridging > 1/8 inch -26°C / -15°F

11. Adhesion Substrate Elcometer Adhesion, psi Concrete, dry 400, SF Concrete, primed > 400, SF Steel, 2-mil blast profile > 2000 Aluminum, cleaned > 2000 Wood 250, SF SF = Substrate Failure

12. Salt Spray Corrosion Studies System Reactivity, (sec) 2.5 3.5 Blistering Bare steel none none Urethane primer none none Epoxy primer F, #2 F, #2 Corrosion from scribe, mm Bare steel 4.0 7.0 Urethane primer >10 >10 Epoxy primer 9.5 8.0 Elcometer adhesion, psi Bare steel >2000 >2000 Urethane primer 500 800 Epoxy primer 1200 1100 1000 hours ASTM B-117 Salt Fog Exposure

13. Plural-Component Equipment • Proportioning Machine • Spray • Pour • Injection • 1:1 Ratio Metering Pumps • Hydraulic Driven • Air Driven • Other than 1:1 ratios can be achieved • Caulking / Joint Fill Dispensers

14. Polyurea Uses • Abrasion Protection • Corrosion Resistant Coating • Containment • Primary • Secondary • Decorative Application • Molding • Joint / Crack Fill • Structural Bonding & Reinforcement

15. Applications

16. Waste Water Treatment Linings

17. Tank Coatings & Linings

18. Pipe / Pipeline Coatings & Linings

19. Manhole & Sewer Linings

20. Flooring and Parking Decks

21. Bridge Coating

22. Truck Bedliners

23. Railcar Lining & Track Containment

24. Water Parks & Playgrounds

25. Landscape & Water Containment

26. Fuel Storage & Containment

27. Aquarium Lining

28. Architectural Design

29. Theme Park & Decorative Design

30. Roof Coating

31. Marine

32. Automotive Fascia OEM Molded Parts

33. Line Striping

34. Joint Fill / Caulk

35. AT&T Agricultural Canada Alcoa Bayer Pharmaceutical Chevron/Mobile Coca Cola Diamond Shamrock DuPont Frito Lay Ford Motor General Motors Johnson & Johnson Kohler Company Miller Brewing Co NASA Pepsi Cola Quaker Oats Tandy Corporation Texaco U.S. Dept of Energy US Navy Union Pacific Railroad Wilsonart Plastics Companies That Know…

36. Conclusion • Plural Component Technology - no solvents, no VOC’s • Excellent substrate adhesion • Sound case history base • Characterized by NACE / SSPC • Polyurea Development Association

37. Polyurea Development Association Contact Information: Polyurea Development Association14 West Third Street, Suite 200Kansas City, MO 64105Phone: (816) 221-0777Fax: (816) 472-7765

38. Now You Know! www.pda-online.org