WATERPROOFING MEMBRANE — A sheet or paste substance used to prevent water intrusion into the wall or floor.
Wave-crest — Decorative border in mosaic formed by a continuous series of hooks resembling the crests of waves.
WIDIA — Tungsten carbide used to reinforce the edges of the mosaic hammer. Widia must have the correct hardness to cut different materials and ensure a long- lasting sharpening of the hammer.
