Caulk Sealant; 5121 Alphathane/ Alpha Systems N512101TLCI; Used On Flat/ Horizontal Surfaces; Compatible With Wood/ Metal/ Glass/ Common Construction Surfaces; Contains Materials Which Needs The Use Of Air Mask/ Ventilation; Self-Leveling Sealant; White; 9.8 Ounce Cartridge; Single

ALPHATHANE 5121 is a non-shrinking, self-leveling sealant that is designed to work on flat, horizontal surfaces of your RV and can withstand the elements and wear and tear of travel.
Quick Facts:

• Size: 9.8 oz tube
• Designed to withstand all weather conditions
• Forms permanent elastic bond
• Perfect for RV roofs and horizontal surfaces
• Helps prevent air and moisture intrusion
• Non-shrinking
• Non-yellowing