

DYNAFLEX 230 Brz Dynaflex 230 Sealant 7079818420
Key item features
- Hybrid Performance: Combines the superior flexibility and durability of silicone with the easy tooling, excellent paintability, and low odor characteristics of latex.
- Strong Adhesion: Provides permanent adhesion and flexibility, creating a watertight, weatherproof seal suitable for various applications.
- Effortless Cleanup: Features easy water clean-up, simplifying the post-application process for both interior and exterior projects.
- Paintable Surface: Allows for painting over the cured caulk, offering versatility for seamless integration into finished surfaces.
- Mildew Resistant: The cured caulk is formulated to be mildew resistant, contributing to its longevity and maintaining a clean appearance.
- Meets Standards: Conforms to the performance requirements of Federal Specification TT-S-00230C, Type II, Class A, and ASTM Specification C 920, Class 25.
Specs
- Rec. useSeal Joints
- Recommended surfaceMulti-Surface
- Dry time0 h
- Rec locationIndoor
- BrandDAP
- Adhesive formPastes
Reviews summary
- : Quickly cleans with minimal mess.
- : Forms a tight seal around windows and doors.
- : Goes on easily without mess.
- : Forms a secure attachment with multiple surfaces.
- : Forms seal around doors and windows.
- : Can be vibrant and true to description, but may also appear lighter than expected.
- Free shipping
Free 30-day returns
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About this item
Product details
The Dap 18420 Dark Bronze Dynaflex 230 Sealant is great for repairs and home improvement projects. DAP's most advanced latex sealant technology. It combines superior flexibility and durability of a silicone with the easy tooling, excellent paintability and low odor of latex. Provides excellent adhesion and a watertight, weatherproof seal. Cured caulk is mildew resistant. Easy water clean-up. Interior/exterior use. 50 Year Durability Guarantee. Meets Federal Specification TT-S-00230C, Type II, Class A and ASTM Specification C 920, Class 25.
Dap 18420 Dark Bronze Dynaflex 230 Sealant:
- Combines silicone performance with latex ease of use
- Permanent adhesion and flexibility
- Cleans up with water
- Paintable
- Meets the performance requirements of Fed. Spec. TT-S00230C, Type II, Class B, Clear: Class A
Specifications
Industrial sealant type
Rec. use
Recommended surface
Dry time
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
Warning Text
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| Rec. use | Seal JointsDYNAFLEX 230 Brz Dynaflex 230 Sealant 7079818420 | WindowDap 08647 9.8 fl oz Dow Corning® Bronze Silicone Sealant | WindowDAP 00804 Side Winder Advanced Polymer Siding & Window Sealant, Clay, 10.1 oz | Seal JointsExtreme Stretch Pine Grn Strch Sealant 7079818709 | GlassDAP Extreme Stretch Limestone Acrylic Urethane All Purpose Sealant 10.1 oz |
|---|---|---|---|---|---|
| Recommended surface | Multi-SurfaceDYNAFLEX 230 Brz Dynaflex 230 Sealant 7079818420 | Multi-SurfaceDap 08647 9.8 fl oz Dow Corning® Bronze Silicone Sealant | -DAP 00804 Side Winder Advanced Polymer Siding & Window Sealant, Clay, 10.1 oz | Multi-SurfaceExtreme Stretch Pine Grn Strch Sealant 7079818709 | Multi-SurfaceDAP Extreme Stretch Limestone Acrylic Urethane All Purpose Sealant 10.1 oz |
| Dry time | 0 hDYNAFLEX 230 Brz Dynaflex 230 Sealant 7079818420 | 1 hDap 08647 9.8 fl oz Dow Corning® Bronze Silicone Sealant | 0 hDAP 00804 Side Winder Advanced Polymer Siding & Window Sealant, Clay, 10.1 oz | 2 hExtreme Stretch Pine Grn Strch Sealant 7079818709 | 1 hDAP Extreme Stretch Limestone Acrylic Urethane All Purpose Sealant 10.1 oz |
| Rec location | IndoorDYNAFLEX 230 Brz Dynaflex 230 Sealant 7079818420 | IndoorDap 08647 9.8 fl oz Dow Corning® Bronze Silicone Sealant | IndoorDAP 00804 Side Winder Advanced Polymer Siding & Window Sealant, Clay, 10.1 oz | Indoor and OutdoorExtreme Stretch Pine Grn Strch Sealant 7079818709 | IndoorDAP Extreme Stretch Limestone Acrylic Urethane All Purpose Sealant 10.1 oz |
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Customer ratings & reviews
Reviews summary
- : Quickly cleans with minimal mess.
- : Forms a tight seal around windows and doors.
- : Goes on easily without mess.
- : Forms a secure attachment with multiple surfaces.
- : Forms seal around doors and windows.
- : Can be vibrant and true to description, but may also appear lighter than expected.
Customer images






+15 images
Showing 1-3 of 128 reviews
RAIN WHEN YOU DON"T WANT IT!!!
I spent a couple of hours sealing an old semi-trailer, it was a warm clear day. The 230 caulk went on very smooth and easy to handle. After a couple of tubes I was getting pretty good at applying it. I finished up and walked inside and was informed that a strong thunderstorm with heavy rain and high winds,has popped up to our west. When it hit we had 1 inch of rain in 45 minutes accompanied with 60 mph wind! Afterwards I went out to look and the caulk looked like whipped cream from a can!!!!! Not too happy with mother nature but, the caulk I had used a couple days earlier held up great! Moral of the story-- don't trust the weather in Minnesota!!
Great product!
[This review was collected as part of a promotion.] Just installed a couple new windows and needed a caulk that would create a waterproof, airproof, strong bond that could withstand the fluctuating temps. So I gave the DAP 100% waterproof window, door, and trim sealant a try. It was easy to apply, easy to squeeze from the tube, great beading and smoothed easily. I did make a couple mistakes but hurried and peeled it up before it skinned over. It was easy to clean off the tools with warm soap and water. I gave it time to cure and I painted over it the very next day. It looks great!
DAP SEALANT
[This review was collected as part of a promotion.] The DAP 230 SEALANT IS GREAT FOR ANY INDOOR OR OUTDOOR HOUSE PROJECTS. IS VERY EASY TO USE, AND WATER CLEAN UP. I MOSTLY USE IT ON MY WINDOWS AND DOORS AND THE RESULTS ARE PRETTY GOOD. I LOVED THIS BRAND BECAUSE IT HAS MANY MORE ADVANTAGES LIKE LOW IN ODOR ,IS PAINTABLE AND HAS INSTRUCTIONS ON HOW TO WORK WITH IT. BUT THE BEST THING IS THAT IS DURABLE AND PROTECTS YOUR HOME AGAINST ANY WEATHER CONDITION.
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