Organic coatings, curing conditions

The Importance of Curing Conditions in Overall Energy Requirements for Organic Coatings... 

Curing. Curing cycles are primarily determined by the silicone content of the resin [2.139]. A typical cure schedule for a 100% silicone resin is 30 min at 260°C. For 50-80% silicones, satisfactory cures are obtained in 15 min at 220°C. For silicone-modified organic coatings, complete cure can be achieved using ambient or low-bake (< 180°C) cure conditions. 

Coating mechanical properties can be affected by the degree of cure, aging effects, and ambient conditions (e.g. temperature and humidity), making it difficult to establish a useful database. Moreover, organic coatings are viscoelastic, so that their properties depend on strain rate and temperature. A complete treatment of viscoelastic theory is beyond the scope of this chapter, and the interested reader is referred to Chapter 12 of this volume for a more complete discussion. The reader may also wish to consult refs. [1,2], which are review articles of transient and dynamic methods of coating characterization. 

Optimization of processing conditions (curing parameters) in fabrication of UV-cured automotive organic protective coatings fluorescence of a viscosity-sensitive molecular probe monitored during curing of coatings... 

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