Sennelier - Latour Pastel Fixative - 400ml Aerosol - Sennelier Latour Fixative is made to protect soft pastel drawings and seal them to the support. Latour Fixative is a resin and alcohol-based solution, specially formulated by Sennelier for soft pastels. The most transparent and non-yellowing matte film available, it leaves the subtle hues of pastel colors unaltered. Repeated light applications are recommended for maximum protection against smearing.