It is excellent for sealing cracks in concrete and brick, as a joint filler for precast roof slabs and for general purpose use in maintenance of exposed buildings. contact KARNAK Technical services at 800-526-4236. Price/Pail. 19 Flashing Roof Cement: 115. Karnak #19 Ultra Flashing Cement is the next generation flashing cement. 00 (51) Model# 97-5-HD. A: Kane, Henry 296 ElastoTape may work with Karnak flashing cement. Henry 296 was made to reinforce repair and flashing mastics such as Henry 289 ElastoCaulk, Henry 208R Wet Patch and Henry 209XR. Seals cracks on vertical and horizontal surfaces without any sags. 90 gal. All you do is add a little water in the hole first. notmyname2011. 19 Ultra Rubberized Flashing Cement Wet/Dry (Emergency Repair) Accessories / Misc. Karnak Corporation 330 Central Ave. It is also an excellent cold process inter-ply adhesive for SBS modified bitumen single-ply membranes. Cartridge 19 Ultra Rubberized Flashing Roof Cement. 19 Flashing Roof Cement. So it’s clean area then Karnak 19 than mesh tape add second coat of Karnak. It provides roofing products, damp-proofing and waterproofing products, fabrics and repair tapes, caulks, sealant and flooring products, and elastomeric products. O. KARNAK 19 Ultra Caulk is the next generation, asbestos-free, rubberized asphalt caulking cement. Wet or Dry Advanced Roofing. View Full Product Details. com. 115. D-4586 Type 1, Class II, Trowel Grade. Overview; Product Documents; Similar Products;After recent snow the roof started leaking, and a roofer came and gave a quote of $3900 for three things: a new graduated rolls membrane coating on…HE505 - Flashmaster Flashing Cement is a premium quality, trowel-grade flashing cement for use on dry surfaces in all temperature conditions. APOC 128 All-Pro SBS Rubberized Flashing Cement. 220 Fibered Emulsion. Karnak #19AF Flashing Cement is a general purpose cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, downspouts and cornices. Apply this reflective Perfect seal Fibered Aluminum Coating to your roof to help reduce energy costs. Seals cracks on vertical and horizontal surfaces without any sags. Recommended use and restrictions on use Use of the substance/mixture : Building and construction work 1. It is excellent for sealing cracks in concrete and brick, as a joint filler for precast roof slabs and for general purpose use in maintenance of exposed buildings. Questions & Answers. 52. It is excellent for sealing cracks in concrete and brick, as a joint filler for precast roof slabs and for general purpose use in maintenance of exposed buildings. Lucas #776 Elite™ Flashing Cement is designed as a superpremium, high-performance flashing cement intended for use on modified bitumen and asphalt roofs. Internet # 100311255Model # 19-5-HDStore SKU # 147481. 81 Modified Bitumen Adhesive is a premium cold-applied, high strength bituminous based adhesive sealant designed for the application and repair of SBS modified bitumen single-ply membranes and bituminous single-ply membranes. Rubberized and flexible for convenient usage. Karnak: Rust-Oleum: Name: 209XR Extreme Rubberized Wet Patch Roof Leak Repair Sealant Caulk 10. stir. Ideal for repairing shingles, concrete, wall flashings, and more. PRODUCT: HENRY #HE906 (906) FLASHMASTER PLUS, PREMIUM RUBBERIZED, VERTICAL/HORIZONTAL, WET OR DRY ELASTOMERIC ROOF FLASHING CEMENT, 5-GALLON PAIL. Contains a selection of rubber-reinforced asphalt, mineral fibers and refined solvents. Use in wet or dry conditions to seal and stop leaks around flashings, skylights, vent pipes, chimneys. 4. As a third-generation, family owned company we strive to make the best asphalt flashing. Do not flush into surface water or sanitary sewer system. 3 Gal. Supplier Manufacturer Karnak Corporation 330 Central Avenue Clark, New Jersey 07066 - USA T +1-800-526-4236 1. It doesn’t require mixing, it is smooth and ready to apply, and it is designed to last even under the. Karnak #19 Ultra Flashing Cement is a general purpose flashing cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, skylight flashings, downspouts and cornices. Sizes:11-KAR5540H-04 - 5540 Resat Mat Roll 4. Karnak. A. USES: 19 Flashing Cement is a general purpose cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, downspouts and cornices. Finish Coats. Supplier Manufacturer Karnak Corporation 330 Central Avenue Clark, New Jersey 07066 - USA T +1-800-526-4236 1. KARNAK is a family owned company that has been making roofing, dampproofing and waterproofing products for 85 years. Manufacturer Karnak: Part Number 19-1AF: Retail UPC 6-0300900051-6: 5175G Black Jack Silver-Seal 300 Fibered Aluminum Reflective Roof Coating, 3 year, 1 Gallon. A: Kane, Henry 296 ElastoTape may work with Karnak flashing cement. Hazard(s) identification 2. A general purpose, cold-applied cement that is ideal for use in sealing and repairing many types of asphalt-based roof membranes. 19 Ultra is excellent for sealing cracks in concrete and brick, as a joint filler for precast roof slabs and for general. #19 Ultra provides a durable elastomeric coating of greater strength, excellent. Shop KARNAK 19 Ultra 3 -Gallon Fibered Elastomeric Cement Roof Sealant at Lowe's. Based on our research, we rate FALSE the claim that cancer increased twentyfold among the COVID-19 vaccinated due to suppressed T cells. Karnak. Karnak 10. 501 Elasto-Brite. See what other customers have asked about Karnak 1-Gal. KARNAK FLASHING CEMENT #19 GALLON. 04 : Karnak 298 Alumin-R, 501 Elasto-Brite, 502 RC-W Elasto-Kote Base and 502 RC-W Coating. Large selection of Galvanized Flashing Long Rack Not Included $11. 1; 2; Showing 1-12 of 24 results. For flashing onto a modified bitumen membrane roof I would recommend using 19 Ultra Flashing Cement. Compare $ 293. Excellent for sealing cracks in concrete, brick, as a joint filler forpre-cast roof slabs and general purpose use in maintenance of exposed. Scientifically compounded with a selection of rubber reinforced asphalt, mineral fibers, and refined solvents. The open mesh construction of the fabric allows the surface coatings to. 48 (149) Model# 19-1. I used Lanco over mesh tape & Karnak 19 flashing cement after full cure. Liquid sealants are intended for brushing or rolling over an area; much more. 155 Amphibikote is composed. 15 Excl VAT. View Full Product Details. Scientifically compounded with a selection of rubber reinforced asphalt, mineral fibers, and refined solvents. Scientifically compounded with a selection of rubber reinforced asphalt, mineral fibers, and refined solvents. Excellent adhesion to most surfaces including primed concrete, masonry, metal, asphalt, modified bitumen membranes and sprayed urethane foam roofing. Repair all blisters and breaks with Karnak #19AF Flashing Cement and Karnak #34 Asphalt Saturated Cotton Fabric or Karnak #31 Fiberglass Membrane. Application Method. If a hole is deeper than that, allow layers to dry between coats. per gallon of leafing aluminum. Karnak. Karnak #19AF Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy. 501 Elasto-Brite. Emergency telephone numberKarnak 19 flashing cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency for application by trowel to provide a durable, elastic coating of excellent adhesion and high resistance to water and weathering. Karnak #19 Ultra Flashing Cement is the next generation flashing cement. (100) Questions & Answers (11) Elastic formulation offers a reliable leakproof seal. When used as a flashing cement, it is ideal for SBS-modified membranes seam and flashing details, such as Flintlastic® SA endlaps and granulated. Siliconizer Crack Filler 1 Gal. Karnak #19 Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency for application by trowel to provide a durable, elastic coating of excellent adhesion and high resistance to water and weathering. Karnak. 2. Finish Coats. It is excellent for sealing cracks in concrete and brick, as a joint filler for precast roof slabs and for general purpose use in maintenance ofSee what other customers have asked about Karnak 3 Gal. 75 Gal. This product dries to a. 251 Premium Wet/Dry Elastomeric Flashing Cement. 2. 97. BRUSH Grade. 406 Standard Fibrated Aluminum Roof Coating. ' the best way to repair for a diy is to use karnak flashing cement and asphalt impregnated mesh available at home stores. (149) Questions & Answers (24) Asphalt-based formulation makes roof surfaces leakproof. Description. All BUR surfaces should be patched and repaired with KARNAK 19 Ultra Rubberized Flashing Cement and KARNAK 31. Systems Products Documents Contact About Search. Prevent product from entering drains. Karnak #19 Ultra is manufactured to a heavy pliable consistency for ease of application by trowel. Company Name Karnak Corporation 330 Central Ave. 19 Ultra Karnak Flashing Cement-Tube-#19ULTRA $ 4. KARNAK FLASHING CEMENT #19 GALLON. Notice all precautions on container. 502MS Karna-Flex Repair Sealant White. 501 Elasto-Brite. Advantages. 19 Flashing Roof Cement. Designed as the most time saving and cost-effective roof leak repair product on the market. Contact. 19 Flashing Roof Cement: Roofers Choice 15 Plastic Roof Cement 4. Karnak #19 Ultra is manufactured to a heavy pliable consistency for ease of application by trowel. Karnak #19 Flashing Cement, asbestos free, is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency for application by trowel to provide a durable, elastic coating of excellent adhesion and high resistance to water and weathering. Seals cracks on vertical and horizontal surfaces without any sags. notmyname2011. Summary. 19 Flashing. 1 oz. Shop this Collection. Karnak: Roofers Choice: Gardner: Henry: Name: 5 Gal. It might work, and if so it won't last long. 2. Wet Surface Standard Flashing Cement 775 155 None 109 501 Premium Flashing Cement 771 19 505 122 None Wet Surface Flashing Cement 779 155 208 109 701 Rubberized Flashing Cement 777 None None PRS 508Karnak Corporation, as described in this Notice of Acceptance, designed to comply with the Florida. Easy to apply Elastomeric, moves with substrate. KARNAK Headquarters 330 Central Avenue, Clark, NJ, 07066 +1-800-526-4236. (combustable; UPS shipping only). Scientifically compounded with a selection of rubber reinforced asphalt, mineral fibers, and refined solvents. 204 Plastic Roof Cement 4. View Full Product Details. Karnak #19 Flashing Cement is a general purpose cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, downspouts and cornices. Karnak 19 Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency for application by trowel. then 33" up the roof with Karnak #78AF Cold Process Cement at the rate of 2 gallons per 100 sq. Henry. KARNAK #19 Ultra Caulk is manufactured to a heavy pliable trowel graded consistency. 3 Gal. 1-Gal. 208 Wet Patch Roof Leak Repair Sealant 0. Supplier Manufacturer Karnak Corporation 330 Central Avenue Clark, New Jersey 07066 - USA T +1-800-526-4236 1. Agency Related - Karnak - ASTM And Federal Specification Cross-Reference Chart (12 Kb, 2pg) Add to Package. USES: 19 Flashing Cement is a general purpose cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, downspouts and cornices. 1 fl. Ideal for sealing and waterproofing cracks and splits on BUR and modified bitumen asphalt roofs, metal roof seams and. Hover Image to Zoom. Karnak continues to lead the roofing repair and restoration market with new innovations every year. Browse Karnak 19 Flashing Cement in the Pro-Fast catalog including Karnak 19 Flashing Cement: Regular,Karnak 19 Flashing Cement: Winter. Karnak. 19 Flashing Roof Cement. How doers get more done. KARNAK 19 Ultra Caulk provides a durable elastomeric coating of greater strength, excellent adhesion and high resistance to water and weathering. Pallet of household goods and furniture. Will permanently seal leaks and bridge cracks on smooth surfaces. Karnak. Compare $ 89. 78 Cold Process Cement. Roofing Repair with Karnak 18. Description: An asbestos free, general purpose flashing cement for repairing leaks in shingles, concrete, metal or aspahlt roofs. There are a lot out there that you can choose from. S AND CANADA 1-202-483-7616 Customer Service: Karnak Corporation 1-800-526-4236 2. thick cement. Apply flashing in the pitch pocket with both cured and uncured flashing such that it extends over the top and goes into the pitch pocket. Price/Pail. Even I was skeptical. Karnak's Technical Sales Manager, Chris Huettig walks you through the application process for repairs with Karnak 18, while p. 19 Flashing Roof Cement 19-5-HD on Page 2. USES: 19 Ultra Caulk is a general purpose flashing cement caulk for repairing leaks in shingles, concrete, metal or asphalt roofs, SBS and APP modified bitumen membranes flashings on walls, chimneys, flues, skylight flashings, downspouts and cornices. 00. The cracking is very apparent and follows exactly along the edges of the two year old flashing cement used to seal the outside lap seams. 5-Gallons/Pail. Karnak #19 Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency for application by trowel to provide a durable, elastic coating of excellent adhesion and high resistance to water and weathering. Related Searches. Embed Karnak Cotton, Fiberglass or Poly-Mat Membrane reinforcement. Lot of six boxes of flashing license plate frames $1. Stops leaks on wet or dry surfaces, emergency repair. 75 Gal. by. The fibers are typically between ¼ inch and 1 inch long. Shop KARNAK 19 Ultra 10 -fl oz Fibered Cement Roof Sealant at Lowe's. )KARNAK 18 Perfectseal Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency. Complies with current VOC regulations. 5-G/Pail. Be reflecting the sun’s rays and reducing roof surface temperatures. Karnak #19 Ultra is manufactured to a heavy pliable consistency for ease of application by trowel. Ideal for repairing shingles, concrete, wall flashings, and more. Apply an additional coat of Karnak #19 Ultra Flashing Cement over the entire patch at an average thickness of 1/8”. Quick links. 1; 2; Showing 1-12 of 24 results. 58 (8) Karnak. 17d 6h Left. Excellent water and water vapor resistance. CHEMTREC (USA) (800) 424-9300 . 208R Rubberized Wet Patch Roof Leak Repair Sealant 3. Spread Karnak #19 Ultra Flashing Cement over the damaged area at an aver-age thickness of 1/8”. KARNAK 19 Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency for application by trowel to provide a durable, elastic coating of excellent adhesion and high resistance to water and weathering. Karnak 19 ultra is manufactured to a heavy pliable consistency for ease of application by trowel. View Full Product Details. Karnak 19 Flashing Cement and Ultra Rubberized Flashing Cement are available in 5 gallon pails, 3 gallon buckets and 1 gallon cans. Karnak 19 flashing cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency for application by trowel to provide a durable, elastic coating of excellent adhesion and high resistance to water and weathering. 19 Flashing Roof Cement. Skin contact: Remove contaminated clothing. 19 Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers and refined solvents that are. Karnak #19 Ultra Flashing Cement is a general purpose flashing cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, skylight flashings, downspouts and cornices. Use this to flashing to both the existing modified bitumen roof membrane and new pipe boot. Also available in 10 oz. 00. A: Perfectseal 27 Fibered Aluminum Roof Coating is for use over existing modified bitumen membrane roofs and may be applied over repairs made with KARNAK flashing cement. 19 Flashing Roof Cement. Karnak Flashing Cement #19, Winter Grade Consistency, 5 Gallon. Karnak #19 Ultra Flashing Cement is the next generation flashing cement. Karnak #18AF Perfectseal Plastic Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency. PricePail. Add to Cart. Too thick of a layer can interfere with water flow and cause more damage. 502MS Karna-Flex Sealant. KARNAK Headquarters 330 Central Avenue, Clark, NJ, 07066 +1-800-526-4236. KARNAK Headquarters 330 Central Avenue, Clark, NJ, 07066 +1-800-526-4236. (244) $ 21. EMERGENCY PHONE : (800)424-9300 DATE PRINTED : 11/12/97. 112 Non-Fibered Foundation & Roof Coating is a non-fibered asphalt coating used for preventing moisture penetration through foundation walls and for protecting a variety of roof surfaces. Price/Pail. Karnak. HE204 - PLASTIC ROOF CEMENT Revision Date 06-Nov-2015 _____ Environmental precautions Environmental precautions Prevent further leakage or spillage if safe to do so. Read the latest magazines about Karnak #19 Ultra Flashing and discover magazines on Yumpu. 19 Flashing Roof Cement. Lucas 771 Flashing Cement is a Premium Grade trowel-applied Flashing Cement used to install, repair or rebuild roof flashings. Karnak. Wet-R-Dri Plus Pro Flashing Asphalt Roof Patch Coating Cement. excellent performance over wide ranges of temperature and weather conditions. nickyforeal. Phone: 800-526-4236; Fax: 732-388-9422; Send Email. Manufacturer Karnak: Part Number 19-1AF: Retail UPC 6-0300900051-6: 5175G Black Jack Silver-Seal 300 Fibered Aluminum Reflective Roof Coating, 3 year, 1 Gallon. SPECIFICATIONS:78 Cold Process Cement. Scientifically compounded with a selection of rubber reinforced asphalt, mineral fibers, and refined solvents. Recommended use and restrictions on use Use of the substance/mixture : Architectural Coating 1. Trowel. Embed KARNAK Cotton, Glass or Polyester Membrane reinforcement in the 19 Ultra Flashing Cement. KARNAK is a family owned company that has been making roofing, dampproofing and waterproofing products for 85 years. HE505 - Flashmaster Flashing Cement is modified and rubberized. Cartridge 19 Asphalt Flashing Roof Coating Cement. 19 Ultra Rubberized Flashing Cement Wet/Dry (Emergency Repair) Accessories / Misc. 19 Flashing Roof Cement (149) $ 21. Stops leaks on wet or dry surfaces, emergency repair. Scientifically compounded with a selection of rubber reinforced asphalt, mineral fibers, and refined solvents. 34 Asphalt Saturated Cotton Fabric is a strong cotton fabric, thoroughly impregnated with highly specialized bitumens. 2. Henry. Karnak D41 Asphalt Primer. Resources. 00 $54. 71 Fibered Asphalt Roof Coating is designed to provide excellent. 19 Flashing Roof Cement: 204 Plastic Roof Cement 4. Model# 19-1 (129) $ 21 48. It is excellent for sealing cracks in concrete and brick, as a joint filler for precast roof slabs and for general purpose use in maintenance of exposed buildings. 1 oz. Helps reduce heat transfer and energy costs. feet. Choose Karnak for industry-leading sustainable liquid-applied roofing solutions, building envelope, and waterproofing products. add a little more water. KARNAK #155 Amphibikote is a carefully prepared, emergency roof cement with special water displacing characteristics, which ensures an effective bond to both wet and dry surfaces. (630) 240 - 7527. USES: 19 Flashing Cement is a general purpose cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, downspouts and cornices. RESTORATION SYSTEM SOLUTIONS. 98 (255) Gardner. Karnak #34 Utility Grade Cotton Fabric is a strong cotton fabric, thoroughly impregnated with highly specialized bitumens. Cartridge 19 Ultra Rubberized Flashing Roof Cement. KARNAK 19 Ultra is available in 3 consistencies: Summer, Semi and Winter grade. Recommended use and restrictions on use Use of the substance/mixture : Building and construction work 1. Features application of Karnak 19 Ultra Rubberized Wet or Dry Caulk, and Karnak 19 Flashing Cement Caulk. View Full Product Details. Karnak #19 Ultra is manufactured to a heavy pliable consistency for ease of application by trowel. Wet-R-Dri Plus Pro Flashing Asphalt Roof Patch Coating Cement. USES: 19 Ultra Flashing Cement is a general purpose asbestos-free flashing cement for repairing leaks in shingles, concrete, metal or asphalt roofs, SBS and APP modified bitumen membranes flashings on walls, Karnak 19 ultra is manufactured to a heavy pliable consistency for ease of application by trowel. 19 Ultra provides a durable elastomeric coating of greater strength. This product dries to a tough, flexible. Allow. Manufacturer. White Elastomeric Roof Patch. J. FINISH COAT. The order of application would be flashing cement, 34 Asphalt Saturated Cotton fabric placed into. (24) Questions & Answers (13) Great for repairing and patching jobs. Finish Coats. 98 (32) Model# 7345-GA. 2d 21h Left. 19 Flashing Roof Cement. com. jmcdermott@karnakcorp. Karnak 19 ultra flashing cement is the next generation asbestos-free elastomeric flashing cement. All of the Karnak roof coatings,flashing cement, and foundation coatings are very good. The primer, basically look for asphalt primer. This is an asphalt based rolled roofing material, typically referred to as ' modified. Total Price. Hazard(s) identification . Customer Service: Karnak Corporation . Container Size: 1, 3, 5 gallons and 10. Adhesives 420 Mod Bit Adhesive - Brush Grade. . Manufacturer Gardner-Gibson: Part Number 5175-A-34: Retail UPC 0-2713451751-8:1. Quick links. Manufacturer Karnak: Part Number 19-1AF: Retail UPC 6-0300900051-6: 5175G Black Jack Silver-Seal 300 Fibered Aluminum Reflective Roof Coating, 3 year, 1 Gallon. The Henry 505 4. 502MS Karna-Flex Repair Sealant White. Flash Master cement is a long-lasting, high-quality, asphalt-based formulation. 00. The video demonstrates the surface preparation and application of Karnak 19 on. 502MS Karna-Flex Sealant. 98 /gallon (295) Lanco. Container Size: 1, 3, 5 gallons and 10. 1-Gal. Classification of the. 19. It is available in 3 consistencies and can be applied by trowel to provide a. Lucas 776 Elite Wet/Dry Flashing Cement 3G: LUCAS-776-ELITE-3G : Lucas 776 Elite Wet/Dry Ultra Rubberized Flashing Cement. 4. I used Lanco over mesh tape & Karnak 19 flashing cement after full cure. 2. 18 Perfectseal Flashing Cement is a durable and flexible cement for roof repair, with excellent adhesion and weathering characteristics. The asphalt flashing cement is intended to seal the edge where the step flashing and masonry (chimney) meet. 4. Read page 4 of our customer reviews for more information on the Karnak 1-Gal. Description: An asbestos free, general purpose flashing cement for repairing leaks in shingles, concrete, metal or aspahlt roofs. Allows for effortless application using a brush. 10d 16h Left. Finish Coats. This product when applied dries to a tough, flexible. V. I wouldn't consider this a permanent fix as my roof only has a few more years left. The best roof cement is fibrated, which means that it contains short cellulose or fiberglass fibers. 19 Ultra provides a durable elastomeric coating of greater strength, excellent adhesion and high resistance to water and weathering. Elastomeric, moves with substrate. 501 Elasto-Brite. USES: 19 Ultra Flashing Cement is a general purpose asbestos-free flashing cement for repairing leaks in shingles, concrete, metal or asphalt roofs, SBS and APP modified bitumen membranes flashings on walls,Karnak #19AF Flashing Cement is a general purpose cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, downspouts and cornices. If applying at temperatures lower than 40°F, the substrate must be free of moisture and/or ice crystals. 66 Modified Bitumen Adhesive is a bituminous based adhesive sealant designed for the application and repair of SBS modified bitumen single-ply membranes and bituminous single-ply membranes. When properly utilized this product adheres the membrane and seals the laps to prevent water intrusion. Questions and Answers for Karnak 1-Gal. Stops leaks on wet or dry surfaces, emergency repair. Eighteen 5 Gallon Pails of Karnak 19 Flashing Cement 100 Photos. 1-Gal. tube. Roof flashing cement is a dense or thick sealant paste applied by trowel or from a tube, used to seal small cracks, holes, gaps, or at intersections of flashing or roofing and other building surfaces. Apply cement between joints and apply pressure so that a bead of cement is visible at joint edge. It provides a durable, elastic coating of excellent adhesion and high resistance to water and weathering. Compare. 19 Flashing Roof Cement. 0/0. 3.