Lippage — one tile edge sitting proud of its neighbor — is the flaw that turns a good tile job into a callback (and a toe-stubber). It shows in raking light, catches a mop, and there's no fixing it once the thinset has cured. The RTC Wedge MD system stops it before it starts, and these clips are the working half.
The method is simple: slide a clip under the joint between two tiles, drive a Wedge MD wedge into it by hand — no tool — and the wedge pulls the tile faces into the same plane and holds them there while the mortar sets. Two engineered details make it work better than a generic clip. An articulating engagement point keeps the wedge pressure centered instead of arcing off to one side, and a thin V-shaped base displaces less mortar, so you don't starve the bond coat under the tile. Once the thinset cures, the clip breaks off cleanly below the surface, and the wedge pops off to be reused.
They set your joint at 1/16" or 1/8", come in 200-pc bags for a bathroom or backsplash and 2,000-pc bulk boxes for contractors running large-format floors, and they're the consumable part you'll restock job after job. You'll need Wedge MD reusable wedges to drive them, and for polished or delicate tile edges, RTC Universal Protection Plates sit between the clip strap and the tile to prevent marking.
Pro tip: Set clips along the long edges of large-format tile at consistent spacing — roughly 8-12" apart, closer on big or slightly bowed tile — and back-butter for full coverage. Don't over-drive the wedge; snug enough to bring the faces flush is the goal, since forcing it just squeezes thinset out of the joint. Wait for full cure before breaking clips off, and break them parallel to the joint, not across it.
