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KARNAK Reflective Coatings, Sealants and Cements
KARNAK manufactures and supplies reflective coatings, cement, and sealants for roofing and waterproofing. It provides roofing products, damp-proofing and waterproofing products, fabrics and repair tapes, caulks, sealant and flooring products, and elastomeric products. The company serves architects, specifiers, contractors, distributors and building owners in the United States, the Caribbean, Latin America, the Middle East, Europe and Asia. It markets and sells its products through sales representatives in the United States and internationally. The company was founded in 1932 and is based in Clark, New Jersey.
671 Karna-Seal
Karnak is making roof maintenance more efficient with new packaging options for 671 Karna-Seal. 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.
N
ow available in 2-liter pouches and 10.1-ounce caulk tubes, Karna-Seal 671 is easier to handle and ideal for targeted repairs and routine maintenance. The smaller packaging helps reduce waste, improves crew efficiency and extends product shelf life after opening. Alongside traditional 2.5-gallon buckets, these new options give contractors greater flexibility to match the right package to the job.
Catch them at IRE at booth 2213.
Achieve Growth With Service and Maintenance
In this CoatingsTalk, Megan Ellsworth is joined by Chris Huettig and John McDermott from KARNAK to discuss why roof maintenance is essential and how coatings contractors can successfully sell repair and maintenance services. Chris and John will break down the financial and customer benefits of offering maintenance, how to position it as a valuable service, and strategies for getting customers on board. From increasing profits and providing steady work to becoming a trusted partner for building owners, roof maintenance can be a game-changer for contractors.
Tune in to learn how to make maintenance a key part of your business!
Karnak Live from RCAT
RoofersCoffeeShop caught up with KARNAK at the Roofing Contractor Assosiation of Texas Expo to see what exciting things they were showing off at the show.
Q Applicator Program
The Karnak Qualified Applicator program is a select membership program that provides training for you and your business associates on the latest KARNAK repair and restoration solutions. The preferred relationship between you and Karnak, comes with a variety of complimentary benefits improving your application quality, productivity and profitability, while saving money for your clients.
Apply to become a Q-qualified applicator.
Find a Karnak Q-qualified applicator near you.
502MS Karna-Flex Sealant
502MS Karna-Flex is an elastomeric, thermoplastic-rubber sealant formulated for use on built-up asphalt roofs, modified bitumen membranes and properly prepared metal, concrete, EPDM, TPO, and most PVC membrane as well as spray polyurethane foam and plywood roof substrates. Its ease of application, superior adhesion, elasticity and durability make 502MS Karna-Flex an ideal repair sealant.
- One component—no need to intermix with other materials
- Easy application by brush or caulking gun
- Superior film—forms a durable, weather resistant elastomeric membrane
- Has superior adhesive and cohesive strength
- Low temperature flexibility—specially selected polymers and resins impart superior low temperature properties to the coating
- Adheres to wet or dry surfaces
Before and After KARNAK
Latest Spanish Content
Celebrando la comunidad en la industria en la recepción de EmpowerAll.
Por Jessica Bravo.
¡Conéctense, compartan y celebren juntos la industria en la recepción de EmpowerAll durante IRE 2026!
Están invitados a la recepción EmpowerAll, un evento donde se celebra la comunidad en la industria del techado. Se llevará a cabo el martes 20 de enero de 2026, de 4:00 ...
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Gana la temporada navideña con esta guía de regalos
Por Emma Peterson, traducido por Jessica Bravo.
Desde herramientas hasta cursos de capacitación, el equipo de The Coffee Shops™ reúne los regalos perfectos para los profesionales del techado en esta guía para dar en grande esta temporada.
Si tu año ha sido como el nuestro aquí en The Coffee ...
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Latest Podcasts
Challenges in Restoration Part 3: Manufacturers
In this episode of CoatingsCast™, Megan Ellsworth is joined by John McDermott from KARNAK to explore the restoration trends are reshaping the roofing industry and what that means for manufacturers and contractors alike. John shares how a legacy company like KARNAK continues to evolve by embracing innovation while maintaining the ...
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Challenges in Restoration Part 2: Specifiers
In this episode of CoatingsCast™ Megan Ellsworth is joined by Daniel King from Clarity Roof Consulting as well as Chris Huettig and John McDermott from KARNAK to dig into the unique challenges specifiers face on roof restoration projects. From navigating complex regulations and insurance requirements to managing the impact of ...
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Challenges in Restoration Part 1: Contractors
In this episode of CoatingsCast™, Megan Ellsworth is joined by Chris McDonald of Multi Roof Maintenance as well as Chris Huettig and John McDermott from KARNAK to explore the challenges faced by today’s restoration and maintenance contractors. They share how to effectively communicate restoration benefits to customers, the ins and ...
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Latest Webinars
CoatingsCoffeeShop Coffee Conversations - The Association in Your Coatings Corner
In this first-ever episode of Coffee Conversations on CoatingsCoffeeShop, we're shining a spotlight on the association that supports this ever-growing industry – the Roof Coatings Manufacturers Association (RCMA)! Join our panel as they discuss the myriad benefits these organizations offer to both contractors and manufacturers. We'll also provide an insightful ...
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Latest Lunch & Learn
Fluid Applied Restoration 101
In this CoatingsCoffeeShop Lunch & Learn, Chris Huettig from KARNAK provides a practical look at how contractors assess aging roofs and make informed decisions between restoration and reroofing. Learn how to factor in roof composition, penetrations, environmental conditions, customer budgets and contractor capabilities to determine the best path forward. We’ll ...
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Read Listen Watch - Educational Content
Achieve Growth With Service and Maintenance
In this CoatingsTalk, Megan Ellsworth is joined by Chris Huettig and John McDermott from KARNAK to discuss why roof maintenance is essential and how coatings contractors can successfully sell repair and maintenance services. Chris and John will break down the financial and customer benefits of offering maintenance, how to position ...
View Content
Seal the Deal: Mastering Maintenance and Single-Ply
In this CoatingsTalk, Megan Ellsworth sits down with Chris Huettig and John McDermott from KARNAK to explore the evolution of single-ply roofing and why maintenance is key to longevity. Learn how proper preparation, smart sealant choices and effective service strategies can prevent callbacks, save time and strengthen building owner relationships. ...
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Roof Longevity Through Restoration
In this CoatingsTalk, Heidi J. Ellsworth and Chris Huettig of KARNAK are together to dive deep into roof restoration. Chris and Heidi talk about how restoring and maintaining roofs can be a boon for your business, your customers and the whole planet! Chris describes the lifecycle of different roofs and ...
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Latest Classifieds
671 Karna-Seal
Keep roofing even in the harshest weather on all types of roof surfaces.
671 Karna-Seal is a single-component, moisture curing, 100% silicone roof sealant that offers excellent UV resistance, flexibility, and tensile strength. 671 Karna-Seal resists weathering, hardening, chalking, and cracking.
Learn more!
View the Classified
Buy Online
Keep roofing even in the harshest weather on all types of roof surfaces.
671 Karna-Seal is a single-component, moisture curing, 100% silicone roof sealant that offers excellent UV resistance, flexibility, and tensile strength. 671 Karna-Seal resists weathering, hardening, chalking, and cracking.
Learn more!
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720 EPDM Rubber Granules, yellow in color are used to create slip-resistant walkways and surfaces when installed in combination with elastomeric roof coatings.
Categories: Accessories/Misc
Available Sizes
55 lb. kraft bags
Advantages:
Yellow-colored EPDM rubber used to create slip-resistant walkways and surfaces when installed in combination with elastomeric roof coatings
Will not puncture membrane, while ...
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31 Fiberglass Membrane is a waterproofing fabric woven entirely of fiberglass yarn. It is ideal for use with cold application cements and coatings, and being of high flexibility, conforms to all contours and bends as required in general roofing and waterproofing maintenance.
Categories: Fabrics and Tapes
Available Sizes:
36” X 150’ 6 ...
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Latest Videos
KARNAK's en espanol Traning Video Playlist - Videos de capacitación en español de KARNAK
Obtén más información sobre KARNAK visitando su Coffee Shop Directorio.
Suscríbete al canal de YouTube de KARNAK.
Karnak 298 Alumin-R. Subtitulado en Español.
Karnak 19 Ultra cemento encauchado tapagoteras. Subtitulado en Español.
501 Recubridor Reflectante Sistema Completo. Subtitulado en Español
Karnak en Español - Como aplicar Karnak 502 SEBS recubrimiento sobre techo de EPDM
Karnak en ...
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The Weekly Blend - Episode 152
Join us every Friday to learn the latest news in the roofing, metal and coatings industry.
The 152nd episode of The Weekly Blend is live! Join the Coffee Shops’ COO Karen Edwards and Multimedia Manager Megan Ellsworth for the latest episode of this Coffee Shop original web series.
This week, the two ...
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KARNAK's Video Playlist
Learn more about KARNAK by visiting their Coffee Shop Directory.
Subscribe to KARNAK's YouTube Channel.
HOW TO repair and seal a leak on a Silicone-coated roof (671 Karna-Seal Silicone Sealant)
Have a previously-coated Silicone roof that's got some problems and is potentially leaking into your building? The repair is easy with Karnak's ...
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