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Dynaflex 230 10.1 oz. White Premium Elastomeric Exterior/Interior Window, Door and Trim Sealant

$5.48
Buy 12 or more $4.93
  • Long lasting, all-purpose acrylic latex plus silicone sealant
  • Seals joints up to 1 in. wide in windows, doors and siding
  • Interior and exterior, 100% paintable and crack resistant
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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 adhesionIdeal for sealing around window and door frames, siding and trim both inside and out.

Additional Resources

From the Manufacturer

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Specifications

Dimensions

Individual size (oz.)10.1

Details

Color/FinishWhiteCoverage (linear ft.)55
Cure Time (hours)24Dry Color FamilyWhite
Dry to touch (min.)30FeaturesMoisture Resistant,Mold and Mildew Resistant,Permanently Flexible
Indoor/OutdoorIndoor/OutdoorInterior/ExteriorExterior,Interior
KitNoLongevity50 years
Number of Tubes Included1Professional Paint Supplies & ValuesPro Supplies
Returnable90-DaySealant FormStandard Tube
Sealant TypeElastomericTransparencySolid

Warranty / Certifications

Certifications and ListingsASTM CompliantManufacturer WarrantySee Use and Care Manual

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
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Customer Reviews

  • 4.3
    out of 1,150 reviews
  • 80%recommend this product
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Showing 1-10 of 1,150 reviews
This is really good caulk. Used it to seal exterior...
This is really good caulk. Used it to seal exterior joint where mortar meets trim.
by
  • Verified Purchase
Works well to fill large gaps.
This caulking worked well to fill spaces between boards on a patio cover. Some spaces were up to 1/2 inch wide. I allowed it several days to cure and re-caulked any low spots. Again waited for it to cure and painted it. I would not hesitate to use this product for future projects.
by
  • Verified Purchase
  • Recommended
Best large gap filler - 1000 uses
Behaves like a blend of silicone and butyl rubber when cured. Lots of stretch, doesn't crack, and hasnt yellowed in the sun by my sliding door. It's even replacing the butyl rubber material in my RV corner seals. Might not be 100% waterproof like polyurethane or silicone, but I think the bond quality and flexibility coupled with the 5cm (!!) gap rating makes up for any worries you might have. Plus, the best part is you can clean it up with just a bit of water, or even with a dry rag!
by
    • Recommended
    Another great Dap product with a Premium Quality that will last, just follow instructions.
    I have been using Dap products for years and all you need to do is think of what you are using this product for and select the right product. Be sure to follow prep and drying time of this product before you paint or stain and check weather conditions.
    by
    • Verified Purchase
    • Recommended
    Typo on label it seems, 2-4 hours to paint...not 7-14 days. See picture.
    I bought this in clear mistakenly. I've gone through probably 20 tubes of white. When I looked on the label to see the time until you can paint over it, it says 7-14 days! I checked the white tube and it says 2-4 hours, 7-14 days to full cure. I'm assuming this is a typo based on a previous customer review that I searched out that said 7-14 days until paint is nuts and gave it a low rating. The response from a rep was that 2-4 hours AS THE LABEL STATES is the time until it will accept paint. Most likely the rep doesn't have a misprinted label like I got, and most likely the reviewer had. Good stuff, doesn't go on as easily and isn't as easy to work with as the white stuff, but still way better than acrylic latex painters caulk (cheap stuff). Hopefully this review helps someone.
    by
    Response from DAPProductExpertMar 29, 2021
    Thank you for posting your feedback. DYNAFLEX 230 (Clear) and DYNAFLEX 230 (White) have significantly different paint application times. The label data that you reference in your commentary is not a typographical error. The labels for “Clear” and “White/Colors” communicate different data, as they reflect the inherent performance differences between the “Clear” and “White/Color” versions of the product, more specifically, “Clear” acrylic-latex (water-based) sealants dry slower than White/Color versions. As indicated on both the product package label and supporting product literature (Technical Data Sheet) - DYNAFLEX 230 (Clear): "Allow sealant to dry clear (approximately 7-14 days) before painting with latex or oil-based paints." As indicated on both the product package label and supporting product literature (Technical Data Sheet) - DYNAFLEX 230 (White): "Allow sealant to dry 2-4 hours (longer in cool or humid conditions) before painting with latex or oil-based paints.” Should you have additional questions or wish to discuss this in more detail, please feel free to contact DAP Technical Customer Service at 888-327-8477. DAP
      • Recommended
      3 found this review helpful
      This is my go-to for filling in trim molding gaps
      After installing white crown, chair rail, and baseboard molding in our old house, the unevenness of the walls became very obvious. Dynaflex 230 to the rescue! With a little practice and the tip cut at an angle, you can put in a bead of caulk into the gap without too much cleanup required. For the photo, I stopped a couple feet short of the wall. The top edges were already done. It makes for a MUCH cleaner appearance. Three weeks and multiple daily showers later - no cracking or shrinking or anything. I have done the same with trim installed in other rooms with similar high quality results. This approach also makes it a lot easier to paint adjacent to the trim by cutting in with a brush.
      by
        • Recommended
        2 found this review helpful
        I had an old stock tank I wanted to turn into a water container garden, but it had some small lea...
        I had an old stock tank I wanted to turn into a water container garden, but it had some small leaks around the base. I used this sealant on the inside of the tank and the outside around the seams, and let it dry for about a week. Then I got impatient and filled it with water anyway (it said it could take a couple of weeks to dry completely). When I filled it up the leaks were much better, and it could hold water almost completely, but still leaked a little bit. I figured it wasn't that big of a deal and I would need to do periodic water changes anyway, so I left it at that. The biggest surprise came like a week later when this stuff finished drying (while holding water) and now it doesn't leak at all! THIS STUFF IS MAGIC!
        by
        Response from DAPProductExpertSep 9, 2020
        Thank you for posting your feedback. While we are happy to see your positive comments, we must note that DAP DYNAFLEX 230 is not designed, tested, labeled or recommended for use in submerged (below waterline) applications. As indicated on the product package label and supporting product literature: "Not for continuous underwater use...". Should you have any additional questions or require further assistance, please contact DAP’s Technical Customer Service Department at 888-327-8477. DAP
        • Verified Purchase
        • Recommended
        1 found this review helpful
        Clear version - Perfect for brick to wood trim!
        I recently stripped and scraped 50 years worth of old white caulk from the wood trim around my front door where the trim abuts to brick. After removing the old caulk, the contrast between the brick and dark newly-painted trim looked really good - but there was an air gap. Filling with white caulk would not have looked good, so I tried the clear variety of this product. The result was very satisfying. The photos show the result and what the trim to brick transition looked like "before". Note that the clear caulk goes on white, but after several days it turns clear as it cures. Don't forget to fill wider gaps with foam backer as the instructions suggest.
        by
          • Recommended
          4 found this review helpful
          I have used this on a number of different projects. I just got more of this today, I used it this...
          I have used this on a number of different projects. I just got more of this today, I used it this time to glue camouflage on a toy tank.
          by
          • Recommended
          2 found this review helpful
          I have used this product before. It works well and seals perfectly. Whenever, I install windows, ...
          I have used this product before. It works well and seals perfectly. Whenever, I install windows, Dynaflex 230 is my first purchase.
          by
          • Verified Purchase
          • Recommended
          2 found this review helpful
          Showing 1-10 of 1,150 reviews