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🖤 Seal smart, seal strong — the last sealant your projects will ever need!
DAP Dynaflex 230 is a premium black elastomeric sealant designed for both indoor and outdoor use. Each 10.1 fl oz tube delivers a waterproof, weatherproof seal with superior adhesion and flexibility, curing fully in 24 hours. Engineered to withstand harsh weather and heavy wear, it meets rigorous federal and ASTM standards, making it the go-to choice for professionals and DIYers aiming for durable, flawless finishes.
| ASIN | B0166MG7OS |
| Best Sellers Rank | #66,141 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #197 in Adhesive Caulk #31,422 in Hardware |
| Brand | DAP |
| Brand Name | DAP |
| Color | WHITE |
| Customer Reviews | 4.6 out of 5 stars 77 Reviews |
| Full Cure Time | 24 Hours |
| Included Components | Item |
| Item Form | Liquid |
| Item Weight | 12 Pounds |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | DAP PRODUCTS INC |
| Material Type | Silicone |
| Model | 18280 |
| Number of Items | 12 |
| Part Number | 18280 |
| Surface Recommendation | Miscellaneous |
| Tensile Strength | 800 Pounds Per Square Inch |
| UPC | 070798182806 |
| Unit Count | 12.00 Count |
| Water Resistance Level | Waterproof |
C**E
Good product
I use this for driveway cracks. It works better for me than the tar stuff and cracks less with time. BUT..... it must stay dry for at least 24 hours preferably 48 hours after application! Easy to work with and blends with the asphalt driveway. Survives the winter plowing better than other products I've tried. Spring repairs are easier with this stuff.
B**P
Great quality
Used this around all of my exterior windows and doors works great
S**.
Great to work with!
I find that most dark colored caulking is very difficult to work with as it is more sticky. Not this one! Great adhesion but also easy to clean up. A little pricey but difficult to find elsewhere in black.
J**F
Great caulk
Cut your angle needed and start applying your caulk above 40 degrees. I use it mainly for painted sheet steel with rivets along the seem. It applies smooth no hang ups or air pockets to spit. It has good elasticity for the movement needed for my panel seems. I will be buying again.
D**F
As Advertised.
Truly waterproof AND paintable! I'm a former contractor (retired handyman now) so I've had my share of bad experiences with caulks. 🙄
Z**B
Works great.
Great quality.
K**T
GREAT PRICE
love the DAP brand. these were perfect as we just replaced 22 windows and needed a lot of product.
K**N
Used DAP
Every DAP tube in the set was partially used so it was not a complete set.
Trustpilot
3 weeks ago
2 weeks ago