An analytical solution is obtained for the deformation of thin pressure sensitive adhesives, represented by the neo-Hookean model, confined between two rigid plates. The force acting on the plate is shown to have a maximum as a function of the elongation ratio L The result is compared with the elastic limit of the block model which was proposed to predict the stress-strain curve of pressure sensitive adhesives. A possible way of improving the block model is discussed. (c) 2007 Elsevier B.V. All rights reserved.