is analogue to that on fig4 except that it is finer honeycomb fine the relief illustrated on fig6 if of u201c leather aspect u201d type the relief illustrated on fig7 is of u201c sparse corrugations u201d type the following examples illustrate embodiments of the invention without however limiting its scope in the examples unless otherwise indicated all quantities are given in grams colloidal metal oxide colloidal silica in the form of aqueous solution at 30 of silica commercialized by the clariant company under brand name klebosol u00ae silicone oil food grade silicone methyl oil commercialized by the tego company under brand name tego u00ae zv 9207 pigment black mineral pigment commercialized by the ferro company under brand name fa 1260 inorganic thickening agent synthetic layered silicate of sodium and magnesium commercialized by rockwood under brand name laponite u00ae rd precursor methyl trimethoxysilane mtms whose general formula is si och 3 3 ch 3 accelerated ageing test of the culinary article by intensive cooking of various foods potatoes beans steaks grilling and pancakes regularly during this accelerated ageing the anti adherence is evaluated by means of the egg test in accordance with the nf d 21 511 standard and such as described as follows the internal side of a culinary article is oiled with a vegetable oil using a soft cloth with a quantity of oil of about 2 cm 3 of oil for a frying pan of a diameter between 240 mm and 280 mm then the article is cleaned in warm.