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PU 201: Polyurethane Raw Material Testing, Specifications and Performance: “The Myth and
the Magic”- Course Outline
Introduction
 The Urethane Chemical Reaction
Isocyanates (-NCO)
 Isocyanate Content as % NCO
Polyols
 Hydroxyl Content (-OH)
Other Isocyanate Methods
 Acidity as %HCl
 Viscosity
 Monomer & Isomers in polymeric MDI
 TDI Isomers
 Color Methods
Other Polyol Methods
 Acid Number
 Basicity (Alkalinity)
 Basicity as % Nitrogen
 Water
 Blended and Formulated Polyol Methods
Relationship between Testing and Specifications
Applications or Performance Testing
Conclusions and Open Discussion
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