Heng’s Nu Flex 302 clear silicone caulk is a 100 percent RTV (room temperature vulcanization) sealant approved by NSF for general-purpose sealing applications. The acetoxy formulation resists sagging on overhead and vertical surfaces, making it ideal for sealing around windows, vents, trim, and other RV compartments where you need an invisible bond line.

This single-component caulk bonds to metal, glass, wood, ceramics, and most plastics. Once cured, it forms a permanently flexible, rubbery solid that withstands temperature extremes, UV exposure, and vibration.

• 10 oz cartridge size
• NSF approved
• Adheres to multiple substrates
• Resists temperature extremes and UV
• Permanently flexible after curing
• Not paintable