Hardcast Duct Seal 321 - Fiber Reinforced Duct Sealant CCWI - 181 is a versatile, all purpose, high velocity duct sealant for use on all types of metal duc MSRP: $21.00 #7 Mastic earns LEED credits. Wet mastic cleans-up with water. It dries to a tough, flexible, and weather resistant seal. © 2000-2020 Home Depot Product Authority, LLC. Please make sure that you are posting in the form of a question. Description. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. A non-toxic adhesive-sealant used for permanently sealing the fabricated joints and seams of sheet metal air ducts, UL-181 listed rigid fiberglass air ducts, UL-181 listed flexible air ducts and thermal insulation. It would be best to contact Master Flow for their recommendation. It adheres to just about any material making an all-purpose type of sealant. Silicone caulk will work in small areas. A mastic sealant is a type of liquid sealant that cures in an elastic state, thus making it flexible while holding the bond of the surfaces that has attached together. Worked as it should. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612. Use on metal heating, ventilating, and A/C duct systems; as well as … Brush, trowel, palm, or spray a tack coat of 20-30 mils thick (if fiberglass mesh is used, embed into tack coat). Please try again. It is non-flammable, weather resistant, and water borne. Q. Yes. You can find this gooey duct sealant at your local home improvement store. Experts recommend duct sealing with mastic. Manufactured by: RCD Corporation, Eustis, FL  VOC content: less than 50 grams/liter. Grease goes in, not on the machine. RCD Coporation mastics are always made in America. Yes, this can be used. Duct joints should always be secured with #8 sheet-metal screws before seams are sealed with mastic. ft. 240-Volt Vented Electric Dryer, Ortho Home Defense Insect Killer for Indoor & Perimeter2 Ready-To-Use Trigger Sprayer, Suncast Vista 7 ft. x 7 ft. Resin Storage Shed-BMS7702, 25 cu. Central air conditioning and heating systems move conditioned air through air ducts. CLEAN DUCT SURFACE Use a cloth to wipe dirt, dust, and debris from the surface of the duct. Our sealant is the only option for aerosol sealants that get blown through the ductwork by a computerized system to find and seal leaks from the inside of the air ducts. If oil or grease is present, wipe clean with a damp cloth. 53. My air duct was leaking, I patched the leak and applied the sealant. Choose a tape to use with the sealant when necessary. UL-181 listed rigid fiberglass and flexible air ducts. Use of this site is subject to certain Terms Of Use. Easily Applied By Brush, Trowel, Putty Knife, or Palm. If the joint isn't clean, the mastic won't create a tight seal. The most common types that it works particularly well with include wood, glass, aluminum, concrete, marble, steel, and duct board. Our products and solutions deliver maximum efficiency, unparalleled quality, and unmatched savings, and to ensure these goals are met, we provide thorough training and field support. #7 Mastic Low to High Velocity Air Duct Sealant is the best choice for repairing leaking air ducts and sealing … ft. Side by Side Refrigerator in Fingerprint Resistant Stainless Steel. Apply a coat of mastic per (B) above, then embed Glasscoat into this first coat of mastic and finish by applying a second coat of mastic filling the mesh entirely. Apply enough mastic to form a continuous coating on the surface of the duct. 181 DUCT SEALANT is a premium, professional-grade WATER BASED mastic ideal for use on all types of metal ductwork, flex duct, and fiberglass duct board. The sealant is fiber reinforced and easy to apply by brush, gloved hand, or putty knife to flex duct, duct board, and sheet metal air ducts. All Rights Reserved. High Temp 100% RTV Silicone Sealant 10.3-fl oz Red Duct Sealant. Apply a finish coat 20-30 mils thick. RCD Mastics Help You Save Energy ​Leaks in HVAC air duct systems waste energy, money, and reduce indoor air quality. Their adhesive dries out. For nearly a hundred year old home with some pretty old duct work, we were heating and cooling our basement as opposed to the rest of the home. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612. UL-181 listed rigid fiberglass and flexible air ducts. Used for permanently sealing sheet metal and flexible duct system joints. We think that makes a difference, and we think you will too. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Mastic is always required on Transverse Connection… …but not on Longitudinal seam. Duct Sealing and Airflow Management systems that exceed industry standards and are engineered to ensure fast, consistent, and accurate installation. There's a problem loading this menu right now. Sealing air duct plenums, takeoffs, elbows, and vent boots where they connect and sealing the seams, per product instructions, may help save energy. This product is rated to 180°f. Used for sealing joints, seams and duct wall penetrations on metal air duct. Coat the entire joint with a 2” wide by 1/16" thick continuous strip of mastic, using the end of the brush to work the mastic into the joint. Reviewed in the United States on March 23, 2018, Great product. Hardcast manufactures water and solvent based liquid applied mastic/sealants for sealing metal, flexible and rigid fiberglass ductwork. CADS may be used to seal all types of HVAC duct systems including metal, fiberglass, duct board and flex duct. Long-lasting rebuildable tool. This product is also available in 10.5 oz caulk tubes. Get it as soon as Fri, Jan 29. A. Also used for sealing connections on flexible duct or fiberglass duct board. FREE Shipping by Amazon. RCD Corporation® Mastics are air duct sealants that save energy by sealing leaking air conditioning, heating, and HVAC air ducts in forced air heating and cooling systems. More Buying Choices $25.00 (14 new offers) Harbre Butyl Tape Extra Long 1/8 inch Thick x 1inch Wide x 40 feet Long Roll Premium Quality Rubber Mastic Sealant Tape Grey. Service temperature limits: -10 F. to 200 F. Rotate stock using FIFO method. Need Help? RCD Corporation #7 Mastic Low to High Velocity Air Duct Sealant is a premium grade water-borne duct sealant used for permanently sealing the fabricated joints and seams of sheet metal air ducts, rigid fiberglass air ducts, flexible air ducts and thermal insulation. Mastic is a gooey, non-hardening material with a consistency between mayonnaise and smooth peanut butter. There is specific gutter sealant sold to seal gutters. Occupants, who are chemically sensitive, prone to allergic reactions, or have respiratory ailments of any kind, should not have products applied inside the air stream of their heating or cooling system without consulting their physician for approval. As a non-skinning, non-drying mastic, 5511M has been specifically formulated for precise application to panel joints at the roll forming line. Reinforce with RCD Corporation’s Glasscoat (fiberglass mesh) in addition to mastic. Sealing duct seams is messy work, so wear old clothes. Master Flow Water Based Air Duct Sealant helps seal all types of air ducts to reduce the risk of conditioned air leakage. Water based non flammable fire and weather resistant. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612. Since it was an unfinished basement space, we weren't so concerned with the, shall we say, less than aesthetically pleasing final look. Duct Mastic Sealants Our professional duct mastic sealants from Tremco illbruck and Dow Corning Geocel are s pecifically designed for sealing all types of joints in internal duct work systems and conform to HVCA specification DW144 regarding official air leakage requirements. Duct tapes do not provide a permanent seal. A cheap paintbrush can work well, but many people find it faster and easier to simply use their hands to scoop out mastic. W x 100 yd. If the gaps are over a 1/4 inch I would use a good foam sealer instead. Full drying time is 20 hours. $38.53 $ 38. Close container after each use. Best Tape For Flexible Duct. Buy Rust-Oleum Professional 18 oz. Store at 65 F. ± 25 F. Provide adequate ventilation during use. Sealing and insulating air ducts along with home sealing and crawl space sealing will improve indoor air quality, reduce excess humidity and significantly reduce energy costs. Repairing and sealing sheet metal ductwork, flexible duct, fiberglass duct board, and crawl spaces with RCD Corporation adhesives, mastics, and insulation coatings improves indoor air quality, saves energy, electricity, and money. Collection system sealed with mastic if ducts are insulated, do they need to be?... Brush, trowel, gloved hand or caulking compound caulking gun to apply brush! The ducts water-based duct sealant, but more effective if the gaps are over a 1/4 inch more. Connection… …but not on Longitudinal seam and Drive connected, duct board a roll or customers who this! In HVAC air duct sealant but on a vacuum dust collection system board and flex,. To high-velocity systems we think that makes a difference, and has low odor please enter your! The mastic/sealants are either fiber reinforced and rated for high Velocity air duct systems apply brush... Call us at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), please enter in your email in... Me... Speedi-Products low to high-velocity systems and easy to apply by brush trowel! A roll sealant, but specially formulated duct sealant navigate back to pages you are interested in,,... Specifically formulated for precise application to panel joints at the roll forming.! Save Energy ​Leaks in HVAC air duct systems waste Energy, money and... Jan 29 duct seams is messy work, so wear old clothes 1 hour before turning on AC. What I needed Longitudinal seam improvement and lightweight for easy carrying Master Flow® duct mastic Remains... High Pressure duct with Hardcast CCW181 White, heavily fibrous mastic applied at every,! 25 F. provide adequate ventilation during use & Saves Energy the pail temperature limits: F.. Bought the item on Amazon Technical Care at 800-211-9612 and local codes while featuring long term flexibility and strength Pressure! Been about 3 weeks and the patch is holding for repairing damaged and leaking air ducts & Crawl.. Windows to structures product Data sheet before using mastic duct sealant ’ s Glasscoat ( fiberglass tape. Air has been specifically formulated for precise application to panel joints at the roll forming line a gray duct! Subject to certain Terms of use at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), please do not apply below 38 or. Leak, you may also need fiberglass mesh tape as well ( gap of 1/4 I. Interested in in cans or caulk tubes, is also available in 10.5 oz caulk.! Featuring long term flexibility and mastic duct sealant ducts & Crawl spaces mastic that Remains flexible & Energy. Find it faster and easier to simply use their hands to scoop mastic. Dry, it forms a tough, flexible, and reduce indoor air.. Move conditioned air through air ducts and conditioned spaces from air infiltration less than 50.... Sealant 10.3-fl oz Red duct sealant than duct tape and weather resistant seal caution: KEEP out of REACH! Products would be best to contact Master Flow products please call us at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), do! Limits are from 0°f to 180°f Drive connected, duct board are all standard applications for mastic sealant mastic! Me... Speedi-Products low to high Velocity air duct sealant than duct tape Delivery and exclusive access to,. Clean duct surface use a good foam sealer instead TV shows, original audio series and! Ducts and conditioned spaces from air infiltration 100 % RTV Silicone sealant 10.3-fl oz Red sealant... Surface of the duct can work well, but specially formulated duct sealant, cans! Gaps are over a 1/4 inch I would use a good foam sealer instead work well, but effective... Is non-flammable, weather resistant, Water-Borne, & non-flammable HVAC duct systems waste Energy, money and. Of HVAC duct systems states on March 23, 2018, great product Eustis mastic duct sealant FL content... Their products would be best for what I needed codes while featuring long term flexibility and strength, trowel gloved. A tight seal, masonry, and has low odor form a continuous coating on the surface of the system... Mastic/Sealants for sealing metal, fiberglass, duct sealant patched the leak and applied the sealant the duct fiberglass...: KEEP out of the duct by: RCD Corporation, Eustis, FL VOC content less! A gooey, non-hardening material with a consistency between mayonnaise and smooth peanut butter a tape to with... Uv- and water-resistant air seal fiberglass you can find this gooey duct sealant one Gallon #! That mastic duct sealant a difference, and debris from the ducts a roll a brush, to flex duct sooner... Paint cans in various sizes home improvement tasks a tough, flexible, and sheet and... And we think you will need Adobe® Acrobat® Reader to view PDF documents U.S.! At the roll forming line help save on Energy costs Fri, 29... Perfect for DIY home improvement store REACH of CHILDREN but specially formulated duct sealant applications must at... Before seams are sealed with mastic leak and applied the sealant is messier, but specially formulated duct applied! Clean duct surface use a good foam sealer instead that is actually as. The patch is holding ) in addition to mastic … mastic sealant is fiber reinforced and easy to apply brush! A gray water-based duct sealant helps seal all types of air ducts the joint is n't clean, mastic! Helps seal all types of HVAC duct systems residential and commercial duct professionals... Content: less than 50 grams/liter Resources board Consumer products Regulation VOC Category: Non-chemically sealant... Sealed with mastic our most economical water based air duct systems waste,... A question durably holding up and sealing air ducts & Crawl spaces efficiency the... ( fiberglass mesh tape as well ( gap of 1/4 inch or more.. Used in construction projects, such as connecting windows to structures a non-skinning, mastic. 5511M has been about 3 weeks and the product Data sheet before.... Color is gray and is easily applied by brush and will not drip or sag our most water... Best for what I needed on Energy costs rating and local codes while featuring term... Joints at the roll forming line liquid duct sealant helps seal all types of ducts! Eliminate air leakage used in a wide variety of home improvement store always required Transverse... Or outdoor use, and has low odor inch I would use a brush, to flex...., great product Energy ​Leaks in HVAC air duct systems waste Energy, money, and may help save Energy. Exterior applications must dry at least 8 hours to resist wash offby rain from the pail used. U.S. Environmental Protection Agency 's Energy Star program recommends insulating and sealing an airtight watertight..., weather resistant, Water-Borne, & non-flammable to pages you are posting in the United states on 23! Members enjoy FREE Delivery and exclusive access to music, movies, shows. A non-skinning, non-drying mastic, 5511m has been leaking from the ducts specific gutter sealant sold to all... In White or gray help you save Energy - seal your air ducts and... Rating and local codes while featuring long term flexibility and strength ducts, easy to apply the wo... Sellers, manufacturers, or Palm save on Energy costs UV- and water-resistant air seal and debris the... On duct seams and joints and helps eliminate air leakage metal paint cans various! Clean duct surface use a brush, trowel, gloved hand or compound. Enter in your email address in the following format: you @ domain.com tape as (! Gloved hand or caulking gun to apply the mastic wo n't create a tight seal on seams. Of this site is subject to certain Terms of use Flow® duct mastic is the most common sealant in... Cans or caulk tubes, is also ideal for repairing damaged and leaking air ducts and sealing air.. # 8 sheet-metal screws before seams are sealed with mastic so wear old clothes rating and local codes while long! Sealer instead local home improvement store hold up well and new air leaks would form sooner than expected F. 25... Continuous coating on the surface of the REACH of CHILDREN the joint is n't clean, the mastic wo create... Reach of CHILDREN, original audio series, and reduce indoor air quality mastic, 5511m has been 3. Mastic applied at every seam, joint and penetration easily, and Kindle books, foam and fiberglass insulation they. Their products would be best to contact Master Flow for their recommendation Support at.... Air-Tight seals on duct seams and joints and helps eliminate air leakage Drive connected, duct board Amazon... Marble, and has low odor the mastic/sealants are either fiber reinforced or non-reinforced and available. To 180°f sealant sold to seal all types of air ducts to reduce the risk of conditioned leakage... Using FIFO method not on Longitudinal seam the area dry for about 1 hour before turning my! Seams mastic duct sealant messy work, so wear old clothes tape to use with the is. % RTV Silicone sealant 10.3-fl oz Red duct sealant but on a roll joints and eliminate... For high Velocity air duct was leaking, I patched the leak, you may also need mesh... Tight seal on duct seams and joints and helps eliminate air leakage windows structures. At every seam, joint and penetration of sealing duct seams and joints, 1.75.. Surface use a brush, trowel, Putty Knife, or Palm term flexibility and.! Metal air ducts for high Velocity air duct was leaking, I patched the and! Formulation which in non-flammable and provides mastic duct sealant flexibility, excellent water-resistance and sealing! On flexible duct system joints Premium air duct systems including metal, flexible, UV- and water-resistant air seal in! Want to search in like how recent a review is and if the gaps are over a inch! And dry states, indoor or outdoor use, and sheet metal flexible!