Model # 18860

Internet #202097444

Store SKU #339458

Store SO SKU #1000058418

DAP 5.5 oz. Dynaflex 230 Premium Indoor/Outdoor Sealant
0070798183575

DAP

5.5 oz. Dynaflex 230 Premium Indoor/Outdoor Sealant

  • Paintable ready in 2 hours
  • Seals joints up to 2 in. wide
  • Lifetime guarantee
$398 /each

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Individual size (oz.)
5.5
Pack Size
1

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Product Overview

DAP DYNAFLEX 230 100% waterproof window, door, siding and trim sealant is a premium elastomeric sealant with silicone like toughness to withstand the elements. Combines outstanding durability, adhesion and flexibility with easy tooling, paintability, low odor and water clean-up. Highly flexible to handle joint movement without cracking, crumbling or losing adhesion. Ideal for sealing around window and door frames, siding and trim both inside and out. Great for getting the smaller jobs done.

California residents: see   Proposition 65 information

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Customer Reviews

5.5 oz. Dynaflex 230 Premium Indoor/Outdoor Sealant is rated 3.5 out of 5 by 8.
Rated 4 out of 5 by from I would buy again but . . . . I have read comments indicating Dynaflex 230 absorbs moisture after drying, does not dry within the time frame published by the manufacturer, and you cannot apply paint until well after the manufacturer's specified time. OK, maybe some validity to those comments, however, drying time is based upon ambient temperature and humidity, and the moisture content of the surfaces upon which the caulk is applied. If the moisture content of the surfaces is high, and if the temperature is low, and if the humidity is high, the product takes an extremely long time to dry. If the moisture of the surfaces is low, the humidity is low and the temperature is above 75, then the product dries per the manufacturer's specifications. One note of caution. If you use a colored caulk outdoors, and you do not plan to paint over the caulk, do not use this caulk. Even after days and days of drying, if the caulk is exposed to rain the caulk surface will turn whitish. If you apply this caulk under low humidity, warm or high temperature conditions, and the surfaces are pretty dry, and you plan to paint over this caulk, this caulk is great!
Date published: 2017-04-26
Rated 4 out of 5 by from All purpose sealant that works I've been using this product for a general purpose sealant for at least 5 years and have been very pleased with its performance against the weather conditions in Florida. I would recommend this product anytime for general construction
Date published: 2017-03-13
Rated 4 out of 5 by from Boat Cauking I used this product to seal the transom on a 14ft. aluminum boat transom . It worked great.
Date published: 2017-02-09
Rated 5 out of 5 by from The trick is to let it dry thoroughly I have tried scores of caulks over thirty years of home maintenance projects, I have settled on Dynaflex for most interior and exterior uses, with the exception of places I know are either going to stay really wet, or need to be painted quickly. DAP's Sidewinder works well for those caveats, but it's harder to clean up and it doesn't finger tool as well. I'm only writing this review because someone was asking me about caulks today, and I couldn't quite think of "Dynaflex" since I didn't have a tube of it handy---so I checked DAP's website for the name, then came across the review from the person who had trouble with paint adhesion. My guess is that the gaps were wide enough to need a little extra drying time. I wait until the whitish color goes away completely, then it's safe to paint. It's flexible, it's easy to work with, it doesn't reek, it's easy to clean up, and it's relatively inexpensive.
Date published: 2016-09-03
Rated 5 out of 5 by from GOOD STUFF! As a General Contractor I have tried many caulking products over the past 25 years and I have to say this is my go to caulk. I not only use it on exterior projects but it also works great caulking in backsplashes and trim components. Have also inspected projects several years after completion and the caulking still looks great.
Date published: 2016-05-16
Rated 2 out of 5 by from This sealant is NOT "CLEAR" - until 7 to 14 days later!!! The front product label for this sealant states that it is "CLEAR". The small print on the back of the tube then indicates that "Sealant applies white & dries clear in 7-14 days". The tube further instructs the user to "allow to dry (from white to) clear before painting with latex or oil-based paints". Paintable caulk is traditionally paintable a few hours or so after application. 7 to 14 days is an unbelievably long time to wait before painting. SOOO, if you are a weekend warrior - forget this stuff, because your "honey do list" won't be any lighter until 7 - 14 days later!!!
Date published: 2012-11-28
Rated 1 out of 5 by from paint won't adhere We replaced siding trim on a back porch exterior with Hardy board and used this caulk to seal all edges and holes. It dried overnight and the next day we painted with Sherwin Williams Emerald exterior acrylic latex paint (very expensive), and it would not cover the caulked areas. Everywhere we caulked the paint bubbled. After painting the caulked areas 4-5 times, the cover was finally almost acceptable. We will never use this product again and are returning what is left to the store.
Date published: 2016-06-26
Rated 3 out of 5 by from Has its quirks This product has it's quirks. It does 'skim over' [aka dry to the touch] in about 30 minutes and supposedly "cured" in 24 hours. It does, however require 1-2 weeks for the product to become clear as stated. I, like the other review, have an issue with this as well. The lack of turning clear for 1+ weeks indicates that the product is not fully cured. The quality of the product is average/good, but the lack of "turning" to clear is a disappointment factor for me. I still carry this small tube in a toolbox but generally reserve it for locations where visibility of product isn't a factor.
Date published: 2013-11-22
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