Gesso is probably one of the most important products we use in our workshop. It is applied to the timber frame profile, and is wiped down and sanded to create a smooth base. It can also be used as a finish in its own right, and can be cracked or combed to create a really beautiful effect. We use Gesso on our frames, mounts and slips, either using its natural colour, adding a wash to it, or ageing it to complement an antique frame finish.