DYNAFLEX Ultra 10.1 oz. White Advanced Exterior Window, Door, and Siding Sealant
$7.98
Buy 12 or more $7.18 /tube
- Paintable latex flex sealant for exterior and interior use
- Weatherproof with a lifetime resistance to mold, mildew and algae
- Maintains flexibility and adhesion and rain ready in 1 hour
- View More Details
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Product Details
Specifications
Individual size (oz.): 10.1 oz
Questions & Answers
194Questions
Q:Can I use on a black stone? sink caulk to kitchen counter?
by|Nov 26, 2023
1 Answer
Q:Can it be painted over?
by|Nov 15, 2023
2 Answers
Q:Can this product be used to seal the gap between a plastic outdoor electrical box and Hardi plank siding? Is there a better product for this application? Or if it is not good, please suggest a suitable product.
by|Nov 4, 2023
1 Answer
Q:The vinyl grille on my exterior Atrium door has become unglued from the glass on the bottom panel .Will this product work in reattaching the vinyl grille to the glass?
by|Nov 3, 2023
1 Answer
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Sep 7, 2023
I used this on a dog house that I participated in carpentry finishing work.
It created the depth I was hoping for on the dog house and added to the flesh seal sealant I painted on the wood!
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Aug 28, 2023
Terrible experience with this
Goes on white and dries clear...NO. I applied this stuff between my patio room aluminum and adjourning deck board. 1/8"-1/4" gap in a 16' seam. Label said raintight in 3 hours. Well, it rained 8 hours later, and the stuff actually ran all over my deck board, bled down to the level below staining my paver blocks white. None if it ever turned clear after 2 weeks. Very disappointed in this product. Don't quite know how I'm going to fix this or remove the staining on areas it ran to.
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Response from DAPProductExpertAug 31, 2023
Thank you for posting your feedback. We are sorry to see your low star review on DAP Dynaflex Ultra-Premium Window and Door Sealant. DAP DYNAFLEX ULTRA is an acrylic-latex (water-based) formula (it does not "cure" chemically). The sole drying mechanism is the evaporation of water. Dry time can be significantly impacted by cool or humid application conditions, moisture in the application surfaces or by thick (deep) applications of the sealant. While it is typically "rain ready and paint ready" (surface dry) in 1 hour, full dry through can take 24 hours and longer. When more challenging applications are present or faster through cure times are required, DAP would recommend that you consider our line of fast cure sealants, such as DAP AMP Advanced Modified Polymer All Weather Window, Door and Siding Sealant. DAP AMP Advanced Modified Polymer All Weather Window, Door and Siding Sealant will be surface dry and ready for paint in approximately 30 minutes and through cured in 24 hours, even in cooler and/or more humid application conditions. Of note, DAP AMP Advanced Modified Polymer All Weather Window, Door and Siding Sealant and similar fast cure sealants require solvent (mineral spirits/paint thinner) for clean-up. Should you have any additional questions or require assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.
Aug 9, 2023
I needed to fill gaps in a "lending library" box I built to ensure moisture did not get inside the structure. Application was easy and did the job. It also blended well with the recycled cedar fence boards used in the project.
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Jul 6, 2023
Tube marked clear but chalking is white
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Response from DAPProductExpertJul 7, 2023
Thank you for posting your feedback. We are sorry to see your low star review on DAP Dynaflex Ultra Advanced Exterior Sealant. As indicated on the DAP DYNAFLEX ULTRA (CLEAR) product package label and supporting product literature, under label section: “FOR BEST RESULTS: SEALANT APPLIES WHITE & DRIES CLEAR IN 7-14 DAYS” and again under label section: “INSTRUCTIONS: SEALANT APPLIES WHITE & DRIES CLEAR IN 7-14 DAYS DEPENDING ON JOINT DEPTH, TEMPERATURE & HUMIDITY." All of DAP's (CLEAR) acrylic-latex (water-based) sealants will function this way and are labeled accordingly with the information found above, regarding this color changing performance characteristic. Should you have any additional questions or require assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.
May 18, 2023
great for windows
best caulk out there for windows. Great adhesion and did not shrink so only needed one application even on gaps greater than 1/4". Will definitely be using again for other window and door projects.
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Feb 15, 2023
Best Caulk ever
Best caulk there is.
by
Jan 7, 2023
Worst silicon ever
I've used all kinds of silicones over the years when a product says tact time 30 minutes I expect it at maybe 70°. The tax time on this was beyond three days when I applied it it was 70° for nearly 6 hours more than enough time for it to tack up good 48 hours later and it was still as wet as I put it on it did not start packing until at least 72 hours later. And the mess that it made is ridiculous I will never purchase this product ever again.
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Response from DAPProductExpertJan 10, 2023
Thank you for posting your feedback. We are sorry to see your low star review on DAP Dynaflex Ultra Premium Window Door Trim and Siding Sealant. This product is not a silicone as stated in your commentary. In addition, you appear to be comparing an acrylic-latex/water-based formula (DYNAFLEX ULTRA) to a chemically cured/neutral curing silicone formula. These products are fundamentally very different in both chemistry as well as performance characteristics. The comparable DAP formula would be DAP SILICONE MAX Premium All Purpose 100% Silicone Sealant. DYNAFLEX ULTRA is an acrylic-latex (water-based) formula and as such, the sole drying mechanism is the evaporation of water. Dry time can be significantly impacted by cool or humid/damp application conditions and/or by thick (deep) applications of the sealant. 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.", "Rain Ready and Paintable in one hour (depending on joint depth, temperature and humidity)" and Full Dry Through (Time): 24 Hours." Product applied outside of these recommendations will not perform as designed. Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477.
Jan 4, 2023
I saw that this was popular with a majority of...
I saw that this was popular with a majority of positive reviews. Unfortunately disappointed. I needed a clear silicone for a cold frame with polyurethane double wall windows. I bought a few tubes “clearly” marked CLEAR but it is WHITE. Why would DAP advertise as clear? It also has been two days, no rain, but the caulk is still not totally dry. I’ve had much better luck with other DAP caulks. I cannot recommend it.
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Response from DAPProductExpertJan 9, 2023
Thank you for posting your feedback. We are sorry to see your low star review on DAP Dynaflex Ultra Premium Window Door and Siding Sealant. Per product package label and supporting product literature: Sealant applies white and dries clear in 7-14 days (depending on joint depth, temperature and humidity). Additionally, DAP Dynaflex Ultra is not a silicone, nor is it designed, tested, or recommended for glazing applications. DAP offers specialty window glazing compounds for this type of application. The use of any other product for glazing application would constitute an off-label use (misapplication). Should you have any additional questions or wish to discuss this further, please free to contact DAP’s Technical Customer Service Department at 888-327-8477.
Oct 9, 2022
Does not last
I worked extremely hard preparing to paint my house 2 years ago. I caulked every single seam on the exterior of my house. Now the expensive paint that I used has come off of the caulk and the caulk is shrinking and peeling away. In most places it doesn't even look like I applied caulk to my house. I am now going to have to go back and recaulk the entire house and repaint.
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Response from DAPProductExpertOct 11, 2022
Thank you for posting your feedback, we’re sorry to see your low star review on DAP DYNAFLEX ULTRA. We are not clear as to your commentary indicating: “the expensive paint that I used has come off of the caulk”, as you appear to be describing/your photographs appear to depict a performance issue with the paint that was used. In applications where low flexibility paints are applied over more flexible materials (such as caulking compounds), cracking may result when the paint is not able to flex to the same degree as the underlying sealant. Likewise, “shrinking” is not possible once the product is fully cured. Because you did not provide any details regarding your application surfaces, application conditions, application technique or the paints/coating you applied, it is difficult to provide you with a more detailed response or product usage guidance in this format. Should you wish to provide this information, so we can better address your concerns, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477.
May 12, 2022
Used in a composite deck
Excellent adhesion, fast curing and expansion, I know its not good for deck joints but I used it on a composite deck that has a very low expansion ratio and worked marvelous, yet to see durability under humidity (summer) and frozen temperatures (winter) but so far its working great
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