Smarter packaging, same proven performance

By Dani Sheehan. 

Get the same trusted silicone formula, just packaged to help reduce waste, improve crew productivity and simplify everyday roof repair work. 

Crews don’t want to wrestle with oversized buckets for small repairs, waste material at the end of the day or slow down production with unnecessary cleanup. So, KARNAK is making roof maintenance more efficient with new packaging options for 671 Karna-Seal to give you more control over how you use this trusted repair sealant.  

Known for its single-component, moisture-curing, 100% silicone formulation, 671 Karna-Seal delivers excellent UV resistance, flexibility and tensile strength while resisting weathering, chalking, cracking and hardening. Now, it’s available in two-liter pouches and 10.1-ounce caulk tubes, in addition to traditional 2.5-gallon buckets. 

Why packaging matters 

Buckets still have their place on larger projects but for targeted repairs, punch-list items and routine maintenance, smaller packaging can make a big difference. With pouches and caulk tubes, contractors can: 

• Reduce material waste by using only what’s needed for the repair 
• Save time with faster setup, application and cleanup 
• Lower labor costs by keeping crews moving efficiently 
• Improve jobsite cleanliness with fewer spills and less leftover product 

Designed for targeted repairs and maintenance 

The new packaging options make 671 Karna-Seal especially well-suited for: 

• Flashing and detail work 
• Small leaks and emergency repairs 
• Routine maintenance programs 
• Touch-ups between larger restoration phases 

The 10.1-ounce caulk tubes are ideal for quick, precise applications using standard caulking guns, while the two-liter pouches offer higher output without committing to a full bucket. Both formats are easier to handle on ladders, lifts and rooftops. 

Pouches and tubes also help extend the usable shelf life after opening, minimize partially used containers and reduce disposal costs and product loss. 

Try it on the jobsite 

KARNAK is giving contractors a hands-on way to experience the efficiency of its updated 671 Karna-Seal packaging. As part of a limited giveaway, you can receive a free 10.1-ounce caulk tube of 671 Karna-Seal and see firsthand how the smaller format, cleaner repairs on real jobsites. 

Smarter packaging. Same proven performance. Built for the way contractors work today. Claim your free tube and learn more about 671 Karna-Seal!