At longer times, analysis of interfacial tension (IFT) data from pendant drop method at different asphaltene concentration was found to follow predictions from surface diffusion-mediated random sequential adsorption (RSA) theory , where the surface pressure is independent of viscosity. The surface coverage showed asymptotic behavior with a linear dependency of surface coverage with inverse of √t and the asymptotic limit close to 2D random close packing of disks around 85% (Pauchard et al. 2014).