Binding material is a type of material used to hold objects together. Ties, CEMENT, SISAL, MORTAR, TWINE, and TAPE are all examples of binding materials. Ties are a type of fabric used to fasten two objects together. CEMENT is a powdery substance made from limestone, clay, and sand that hardens when mixed with water. SISAL is a type of fiber made from the leaves of the agave plant. MORTAR is a mixture of sand, CEMENT, and water used to join bricks and stones. TWINE is a type of thin string made from two or more strands twisted together. TAPE is a type of adhesive material used to stick two objects together.