Following the drying of spray paints using space and time contrast of dynamic speckle

R. ARIZAGA; E. GRUMEL; N. CAP; M. TRIVI; J. AMALVY; B. YEPES; G. RICAURTE

Journal of Coatings Technology Research

Federation of Societies of Coatings Technology

Lugar: Blue Bell, PA, Estados Unidos; Año: 2006 vol. 3 p. 295 - 299

The short drying times of spray paints are of great benefit in some applications and this property allows for painting over almost immediately. However, this fast-drying process precludes following it using conventional techniques. In a previous paper we use the dynamic speckle to follow the drying process of solvent –base and water-base paints with relatively long drying times and recently alternative speckle contrast methods to characterize faster processes were developed. In this paper the application of these methods using dynamic speckle techniques to study the drying in a spray paint are presented. Activity image display is also included.