Buff your nail plate
According to Kandalec, “polishing of the surface (of the nail plate) is encouraged with a very fine buffer filler.” This is important because it helps smooth the edges of the nails for better application of the polish, lifts the cuticle that may be stuck to the nail plate and gives the nail a touch of “grip” so the polish stays on longer.
“When filing and filing long nails, use a fine file (a glass or sapphire file is even better) to avoid micro-tears at the free edge, which will cause chipping. breaking“, Kandelec adds. “A glass file will seal the edge. When it comes to collecting files, I recommend a 400 ground file. Never use a ground file that is 180 or lower.”