https://marseille.glissattitude.com/blog/foil-entretien.html
translate with Chrome, Chromium or go here: https://marseille-glissattitude-com.translate.goog/blog/foil-entretien.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp
Some posters on the French forums spoke highly of Duralac which provides a long term coating of surfaces and doesn't have the greasy/sticky issue of Tef-Gel
—