Spring Done Here event is on now. Don't wait!  Shop event.
Choose Your Options

Overview

Model # 7079874158 Store SKU # 1001523846

DAP HVAC SILICONE is a high-performance sealant designed especially for HVAC applications. It provides a long-lasting, weather-resistant seal with supreme adhesion, flexibility, and durability. It adheres to most common building materials and remains flexible from -40 to 475F.Meets Fed. Spec. TT-S-00230 C Class A, TT-S-001543 A Class A, ASTM C920, Class 25, FDA Reg. No. 21 CFR 177, 2600 when fully cured. Safe for incidental food contact, NSF Certified.

  1. Seals All Extreme Temperature Applications
  1. Long Lasting Durability
  1. Remains Flexible up to 475F
  1. Will Not Crack or Shrink
  1. Weather Resistant
  1. Exterior/Interior

Specifications

Dimensions

Assembled Depth (in inches)
2
Assembled Height (in inches)
11.25
Assembled Weight (in lbs)
0.703
Assembled Width (in inches)
2
Packaged Depth (in inches)
2
Packaged Height (in inches)
11.25
Packaged Weight (In lbs)
1.058
Packaged Width (in inches)
2

Details

Caulk Type
Acrylic Latex
Colour Family
Black
Country of Origin
US-United States
Features
Weather Resistant
Number of Tubes
1
Product Location Use
Window and Door
Product Type
Sealant
Swatch Colour
Black

Warranty / Certifications

Warranty terms are stated on the product label. No claims will be considered untilthe product in question has been inspected by a DAP representative.
DYNAFLEX ULTRA Advanced Exterior Sealant BlackDAP DYNAFLEX ULTRA Advanced Exterior Sealant BlackDAP HVAC SILICONE is a high-performance sealant designed especially for HVAC applications. It provides a long-lasting, weather-resistant seal with supreme adhesion, flexibility, and durability. It adheres to most common building materials and remains flexible from -40 to 475F.Meets Fed. Spec. TT-S-00230 C Class A, TT-S-001543 A Class A, ASTM C920, Class 25, FDA Reg. No. 21 CFR 177, 2600 when fully cured. Safe for incidental food contact, NSF Certified.
DAP
1001523846
DYNAFLEX ULTRA Advanced Exterior Sealant Black is rated 4.1 out of 5 by 15.
  • y_2024, m_4, d_14, h_5
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.41
  • cp_1, bvpage1
  • co_hasreviews, tv_6, tr_9
  • loc_en_CA, sid_1001523846, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot-canada
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 90ms
  • REVIEWS, PRODUCT
Rated 5 out of 5 by from Great sealant My house has a coal Shute door at ground level. Water was coming into basement when it rained. Used this caulking all around. We've had many huge downpours and days of lots of rain since. Basement has stayed dry!
Date published: 2020-10-04
Rated 5 out of 5 by from fixes portable building roofs first time using this dynaflex,its a silicone product and i need that type of caulking to fix a portable building roof that had torn open,was a little difficult finding out an appropriate bonding caulk,two weeks later building roof is holding in what have been pretty good winds, so id highly recommend this product for the vinyl/ptfe material whateve the portable buildings are made of.
Date published: 2021-06-24
Rated 5 out of 5 by from So far so good... This stuff works great so far. I comes out smooth and is a bit more tacky than regular caulking. I used it to seal a leak in my eavestrough and a gap on the shed floor. There was water pooling under my shed and it would come up through the gap. I was worried this stuff wouldn't cure properly over a wet gap but it wasn't a problem. We'll see if it stands the test of time.
Date published: 2021-05-31
Rated 1 out of 5 by from GARBAGE by DAP Garbageproduct by DAP. I bought a CLEAR version of this sealant. After two weeks it is still milky white??!!! DAP claims that this sealant is paintable. I painted it two weeks after the application and the second day all the paint applied over this DAP garbage is cracking??!!! Did I mention that the sealant surface is still tacky after 2 weeks of drying......There will be a lot of dust attached to it if it dries so slowly.. GARBAGE by Dap. I wasted my money..... Find some better product !!!!
Date published: 2023-07-11
Rated 5 out of 5 by from Easy to work with, looks good This sealant was a breeze to work with, easy to apply, smooth and clean up. It looks really good, though the colour is a bit lighter than expected. I just applied it this Fall, but so far it looks really good and I'm pleased with the job it is doing.
Date published: 2020-12-31
Rated 5 out of 5 by from Best Product Dap always has the best products. I tried the clear dap all weather sealant on my windows after having problems with condensation and this product was easy to apply and fixed the problems with my windows - Product received for free from Butterly.com in exchange for an honest review.
Date published: 2023-12-11
Rated 1 out of 5 by from Not “rain ready in 1h”, not even close At an absolute loss. Applied 12h before light rain. Woke up to it washing right off. I wish I could add photos. Completely ruined my flashing work and soaked the garden in water mixed with sealant
Date published: 2023-04-17
Rated 3 out of 5 by from Doesn’t dry as well as others Easy to apply but did not seem to dry very fast. Was stick tacky after 24 hours
Date published: 2024-01-23
  • y_2024, m_4, d_14, h_5
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.41
  • cp_1, bvpage1
  • co_hasreviews, tv_6, tr_9
  • loc_en_CA, sid_1001523846, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot-canada
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 46ms
  • REVIEWS, PRODUCT

Can I use this on my roof?

Asked by: Mason
Not really, they do have caulking for roof repairs in black,do not use this DAP bcoz will crack with time
Answered by: Covexco inc 2023
Date published: 2023-08-04

How can excess material be removed/cleaned after cure?

Asked by: Frank
Razor blade, fully cured material shouldn’t come off easily any other way 
Answered by: Bob276436
Date published: 2022-07-05

Is this suitable for use with 1. polycarbonate twin wall sheets AND 2. vinyl siding.

Asked by: crunchykooka
Thank you for posting your inquiry. The DAP DYNAFLEX ULTRA Advanced Exterior Sealant will adhere to both vinyl and polycarbonate panels. Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.
Answered by: DAPProductExpert
Date published: 2022-10-06

Will this caulking work to seal around a bathroom vanity?

Asked by: GinaV
Yes this caulking is perfect for the job. I am happy I purchased it.
Answered by: FrewinRandy
Date published: 2022-10-30

Can I use this to recaulk my exterior windows/brick? And how easy or hard is it to work on? I am a newbie.

Asked by: Nick
Thank you for posting your inquiry on DAP DYNAFLEX ULTRA. While this sealant would be an excellent choice for interior/exterior window/trim application, as it is an acrylic-latex (water-based) formula, it must be applied within proper temperature range. As indicated on the product package label and supporting product literature: "Apply in temperatures above 40°F. Do not apply when freezing temperatures are forecasted within 24 hours. Cooler temperatures and higher humidity will slow down dry time. Paintable in one hour (depending on joint depth, temperature and humidity). Sealant reaches full performance in 72 hours.". Because you did not provide any details regarding your project or application conditions, it is difficult to provide you with a more detailed response in this format. Should wish to provide these details, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477.
Answered by: DAPProductExpert
Date published: 2023-10-28

Can this sealant be used on a horizontal surface like in the joints of a plywood deck?  I intend to paint after with waterseal coating.

Asked by: Donald
Thank you for posting your inquiry. DAP DYNAFLEX ULTRA is soft/flexible sealant (ASTM C920, Class 35, 35% +/- Dynamic Joint Movement). DYNAFLEX ULTRA is designed, tested, marketed, and labeled for window, door, siding and trim applications. DYNAFLEX ULTRA is not a "traffic rated" sealant, meaning that it is not recommended for surfaces that will be walked/driven on, or where direct abrasion may occur. Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.
Answered by: DAPProductExpert
Date published: 2021-11-08

Can this be used inside the house for caulking windows?

Asked by: mt123
There is no caulking inside. Check with an expert before applying.
Answered by: RayB
Date published: 2022-09-27

Can this be used to seal an outdoor salt water pool?

Asked by: jer27
Thank you for posting your inquiry. DAP DYNAFLEX ULTRA is not rated/recommended for below waterline (submerged) applications.
Answered by: DAPProductExpert
Date published: 2021-08-09
  • y_2024, m_4, d_14, h_5CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.41
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_11
  • loc_en_CA, sid_1001523846, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot-canada
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 74ms
  • QUESTIONS, PRODUCT