Astm C920 Class 25 Vs Class 50 [work] -

Class 50 sealants are high-performance products, almost exclusively dominated by high-grade silicones and advanced hybrid polymers.

“Exactly,” Sam said. “Class 25 is for moderate climates, interior joints, or spandrel glass. Class 50 is for abuse —high rises, bridges, parking decks, anything that twists in the wind. The engineer spec’d Class 50 for a reason.” astm c920 class 25 vs class 50

Marcus thanked her, hung up, and made his decision. Class 50 sealants are high-performance products