To store black fiberglass tissue and prevent damage or degradation, follow these steps: Store the tissue in a cool, dry place away from direct sunlight and moisture. Keep it in a sealed, airtight container to protect it from dust and contaminants. Avoid stacking heavy objects on top to prevent compression damage. If possible, use a container with a desiccant to control humidity. Regularly check for any signs of damage or degradation, and replace the tissue if necessary. Proper storage will help maintain the integrity and performance of the fiberglass tissue over time.