One sealant, countless solutions

By Dani Sheehan. 

Get powerful waterproof performance for nearly all your bonding and sealing needs with a structural sealant that works across a wide range of materials. 

When you’re racing afternoon thunderstorms, juggling substates or on a tight timeline, you need a product that won’t let you down. Geocel® 4600™ Hybrid Structural Adhesive Sealant is the multi-purpose workhorse contractors trust to bond, seal and flex through the toughest conditions. Whether you’re sealing skylights or bonding flashing, 4600 delivers reliable performance on a wide range of building materials – even in damp, cold weather down to 0° Fahrenheit. 

Why contractors choose Geocel 4600 

Geocel 4600 is a high-performance hybrid sealant, combining the elasticity and durability of silicone with the paintability and surface adhesion of polyurethane, all in a low-VOC, solvent-free formula. Key benefits include: 

• Heavy-bodied, no slump formula: Applies easily to vertical or overhead surfaces without sagging. 
• All weather application: Bonds in wet, dry and freezing conditions year-round. 
• Long-lasting flexibility: Meets ASTM C920 Class 35 for movement capability and crack resistance. 
• Exceptional surface compatibility: Bonds to metal flashing, masonry, wood, foam, glass, aluminum, fiber cement and most roofing materials. 
• UV resistant and paintable: Tough enough for full sun exposure, with the ability to blend into painted finishes using latex-based paints. 
• Available in jobsite-ready colors: Choose from white, tan, gray, limestone, black or bronze to match your project needs. 

Where it works best 

Contractors need products that can adapt to unpredictable conditions and multiple materials. Use Geocel 4600 to: 

• Seal copings and flashing 
• Bond skylights and HVAC curbs 
• Patch and reinforce penetrations or joints 
• Create watertight seals on foam board or fiber cement 
• Tackle unexpected repairs in cold or damp weather 

Backed by Geocel’s decades of innovation in sealant technology, 4600 Hybrid Structural Adhesive Sealant is designed to be durable, versatile and ready for any condition. Don’t settle for a single-purpose product – choose a hybrid that works as hard as you do.