Read the label and instructions carefully and comply with product directions when they deviate from basic application suggestions. Squeeze a bead of silicone sealant alongside the length of any cracks. Hold the nozzle or tip against the birdbath floor to pressure the silicone into the crack. My authentic pieces are https://connerlpqrq.blazingblog.com/18332571/outside-pedestal-chook-bath-stand-with-metal-ground-anchors-stylish-elegant-fake-stone-designed-garden-ornament-made-from-plastic-garden-patio-garden-sculpture-water-container-1337nih