This paper deals with the study of the cure of a resin in the presence of a UV laser radiation used as the excitation source, operated at lambda = 405 nm, with an output power of 20 mW. The open photoacoustic cell (OPC) technique was used to study the curing of the resins as a function of time. The curing characteristic time values were tau = 10.43, 20.99, 30.18, 45.84, 67.59 and 89.55s for the resin thicknesses of 1000, 2000, 3000, 4000, 5000 and 6000 mu m, respectively. A parabolic behavior of the resin thickness, as a function of the curing characteristic time, was obtained. UV vis spectroscopy and infrared Fourier transform spectroscopy (FIR) techniques were employed to characterize the resin in order to study the optical absorption and the chemical bonds, respectively. Our work has applications in the manufacture of 3D printing parts for applications, among others, in medicine. (C) 2014 Elsevier B.V. All rights reserved.