he HoldFast Epoxy Stick has superior bonding ability that allows you to create steps, caves, cliffs, and walls for aquarium animals to enjoy. It bonds all types of materials from rocks, to corals, to slate, and many more
Use Instructions:Dry all bonding areas thoroughly before applying Holdfast.1. Clean and rough surfaces to be bonded.2. Cut or break off desired amount of Holdfast.3. Knead the mass with your fingers until it turns white.4. Apply to bonding surface, being careful to fill any cracks and crevices. (NOTE: You have about 7 minutes before Holdfast begins to harden.)5. Smooth or sculpt any excess Holdfast to blend with surfaces. It dries within 30 minutes and can be sanded, filled or drilled in less than an hour. Dries to natural white color.