Black fiberglass tissue and cotton tissues have distinct differences in performance and cost. Black fiberglass tissue, known for its strength and durability, is often used in industrial applications where heat resistance and chemical resistance are required. It is non-absorbent and does not rot, making it suitable for outdoor and harsh environments. However, it is generally more expensive than cotton due to its specialized manufacturing process. Cotton tissues, on the other hand, are soft, absorbent, and biodegradable, making them ideal for personal care and domestic use. They are more cost-effective and widely available but lack the durability and heat resistance of fiberglass tissues. Overall, the choice between black fiberglass and cotton tissues depends on the specific application and budget considerations.