Rockite 1 Lb Box Hydraulic Cement

Expands as it sets, never comes loose, never shrinks. Mixes with water only, applied cold, sets stronger than concrete in 1 hour. Good for all interior and exterior DIY jobs. Use to anchor bolts, screws, railing, etc. Use for patching concrete and brick. Use for feathering light cracks and gaps, etc. Dries off-white. Packed in plastic bags within carton.