Cheap sealing wax sooths strongly, becomes matt and delivers no clean impressions; collectors therefore advise higher-quality products, e.g. from siegelshop24.com (around 8 euros per stick for 30–40 seals) or from Landolt-Arbenz in Zurich (about 15 euros for 20 cm). Important is that the stick has no central wick, since such waxes soot when burning and melt unevenly. For application the stick is held over a burner and the wax dripped onto the paper several times rotating before the seal stamp is pressed on. Notary-supply mail-order houses sometimes presuppose that the buyer is actually a notary.