Set of 25 'DuPont Sontara Aerospace Grade Window Wipes' meet rigorous specifications: Exceptionally clean - contains no binders, chemical residue, or contaminants that can result in surface damage. High absorbency rate - jobs completed quickly. Low-linting performance helps to minimize defects and contamination. Durable - less likely to snag on metal parts and sharp corners. Stands up to isopropyl alcohol, MEK5, MPK6 , and other aggressive solvents without falling apart.