Internet #100177094

Model # 18280

Store SKU #372587

Store SO SKU #1000058414

0070798182806

DAP

Dynaflex 230 10.1 oz. Black Premium Indoor/Outdoor Sealant

  • Seals joints up to 1 in. wide in windows, doors, and siding
  • Silicone like formula that is both waterproof and weatherproof
  • 100% paintable and crack resistant
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Frequently Bought Together

Frequently Bought Together

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Product Overview

  • Seals joints up to 1 in. wide in windows, doors, and siding
  • Silicone like formula that is both waterproof and weatherproof
  • 100% paintable and crack resistant
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.
  • Premium window, door, siding and trim sealant
  • 100% waterproof and weather proof
  • Silicone tough and crack proof
  • Superior flexibility and adhesion
  • Ideal for composite wood and PVC trimboard
  • Easy clean up with water and has low odor
  • Exterior/interior use
  • Exceeds ASTM C920, class 25
  • Cured sealant is mold and mildew resistant
  • Need help choosing the right Caulk? Click Here for Home Depot's Buying Guide!
  • Click Here for the How to Caulk Project Guide
  • Click here to learn more about Eco Options and Energy Efficiency



  • California residents see Prop 65 WARNINGS

Product Overview

  • Seals joints up to 1 in. wide in windows, doors, and siding
  • Silicone like formula that is both waterproof and weatherproof
  • 100% paintable and crack resistant
Model #: 18280
Sku #: 372587
Internet #: 100177094

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.

  • Premium window, door, siding and trim sealant
  • 100% waterproof and weather proof
  • Silicone tough and crack proof
  • Superior flexibility and adhesion
  • Ideal for composite wood and PVC trimboard
  • Easy clean up with water and has low odor
  • Exterior/interior use
  • Exceeds ASTM C920, class 25
  • Cured sealant is mold and mildew resistant
  • Need help choosing the right Caulk? Click Here for Home Depot's Buying Guide!
  • Click Here for the How to Caulk Project Guide
  • Click here to learn more about Eco Options and Energy Efficiency



  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Key Features

Product Overview
Key Features
  • Seals joints up to 1 in. wide in windows, doors, and siding
  • Silicone like formula that is both waterproof and weatherproof
  • 100% paintable and crack resistant
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.
  • Premium window, door, siding and trim sealant
  • 100% waterproof and weather proof
  • Silicone tough and crack proof
  • Superior flexibility and adhesion
  • Ideal for composite wood and PVC trimboard
  • Easy clean up with water and has low odor
  • Exterior/interior use
  • Exceeds ASTM C920, class 25
  • Cured sealant is mold and mildew resistant
  • Need help choosing the right Caulk? Click Here for Home Depot's Buying Guide!
  • Click Here for the How to Caulk Project Guide
  • Click here to learn more about Eco Options and Energy Efficiency



  • California residents see Prop 65 WARNINGS

Product Overview

  • Seals joints up to 1 in. wide in windows, doors, and siding
  • Silicone like formula that is both waterproof and weatherproof
  • 100% paintable and crack resistant
Model #: 18280
Sku #: 372587
Internet #: 100177094

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.

  • Premium window, door, siding and trim sealant
  • 100% waterproof and weather proof
  • Silicone tough and crack proof
  • Superior flexibility and adhesion
  • Ideal for composite wood and PVC trimboard
  • Easy clean up with water and has low odor
  • Exterior/interior use
  • Exceeds ASTM C920, class 25
  • Cured sealant is mold and mildew resistant
  • Need help choosing the right Caulk? Click Here for Home Depot's Buying Guide!
  • Click Here for the How to Caulk Project Guide
  • Click here to learn more about Eco Options and Energy Efficiency



  • California residents see Prop 65 WARNINGS

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Specifications

Dimensions

Individual size (oz.)
10.1

Details

Color/Finish
Black
Coverage (linear ft.)
55
Cure Time (hours)
24
Dry Color Family
Black
Dry to touch (min.)
30
Features
Moisture Resistant,Mold and Mildew Resistant,Permanently Flexible
Indoor/Outdoor
Indoor/Outdoor
Interior/Exterior
Exterior,Interior
Longevity (years)
50
Number of Tubes Included
1
Professional Paint Supplies & Values
Pro Supplies
Sealant Form
Standard Tube
Sealant Type
Latex
Transparency
Solid

Warranty / Certifications

Certifications and Listings
ASTM Compliant
Manufacturer Warranty
See Use and Care Manual

Specifications

Dimensions

Individual size (oz.)
10.1

Details

Color/Finish
Black
Coverage (linear ft.)
55
Cure Time (hours)
24
Dry Color Family
Black
Dry to touch (min.)
30
Features
Moisture Resistant,Mold and Mildew Resistant,Permanently Flexible
Indoor/Outdoor
Indoor/Outdoor
Interior/Exterior
Exterior,Interior
Longevity (years)
50
Number of Tubes Included
1
Professional Paint Supplies & Values
Pro Supplies
Sealant Form
Standard Tube
Sealant Type
Latex
Transparency
Solid

Warranty / Certifications

Certifications and Listings
ASTM Compliant
Manufacturer Warranty
See Use and Care Manual

Questions & Answers

I need to seal about a 1/4" gap between a steel beam and cinderblock wall on the exterior of a me...

I need to seal about a 1/4" gap between a steel beam and cinderblock wall on the exterior of a metal building, will this work?
Asked by: Armosa
Thank you for posting your inquiry. DAP Dynaflex 230 would be an excellent choice for your intended application.
Answered by: DAPProductExpert
Date published: 2019-07-22

Can this caulk be used on top of painted interior baseboards or should baseboards have paint removed first?

Asked by: Loveanimals45
It works fine on top of already-painted trim boards, blends well and bonds to the painted surface.
Answered by: OakleyDude
Date published: 2019-07-08

Can be used in Aluminum gutters?

Can be used in Aluminum gutters?
Asked by: Jenny
I wouldn't use it in gutters. It will quickly deteriorate. Use an appropriate glue/sealant made for gutters.
Answered by: SamSucks
Date published: 2019-03-12

My handyman used this for my kitchen sink. I see it’s not approved for that use can it be removed and redone?

Asked by: Kp
You can, and should remove it. Then use a silicone caulking rated for bath and kitchen use.
Answered by: SamSucks
Date published: 2019-03-12
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Customer Reviews

Dynaflex 230 10.1 oz. Black Premium Indoor/Outdoor Sealant is rated 4.1 out of 5 by 349.
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 2 out of 5 by from First let me qualify that I am not a professional caulker, however i have caulked numerous times ... First let me qualify that I am not a professional caulker, however i have caulked numerous times over the years with various products. I am familiar with other products from DAP so I decided to give this caulk I try. It's cost was middle of the road versus other options available at the store so I thought I should work well. Most of the caulking I was doing was vertical in nature and I was caulking joints between aluminum and steel. Before I applied the caulk I noticed that the consistency seemed a little too "soft" sort of like the consistency of warm mayonnaise. As I applied it had a tendency to not hold its shape and at times began to sag. The bead i was trying to apply was 1/4" wide into relatively tight joints. I eventually had to use caulk spreading tools to try to properly fill the joints and clean up the look but boy was that a mess with the caulk oosing all over the place. Bottom line, I have used other products in similar applications and have much better results.
Date published: 2018-05-31
Rated 1 out of 5 by from Since when did dark bronze become Gray in color? I ordered Dark Bronze for a reason, and I can te... Since when did dark bronze become Gray in color? I ordered Dark Bronze for a reason, and I can tell you beyond the shadow of any doubt, this caulk is medium gray, it isn't even that dark and is useless as I bought it to use around dark bronze schluter strips. No can do! It may be good caulk if you don't care about color, but it is NOT dark bronze by any stretch of the imagination, in fact, it isn't bronze at all! Very disappointed.
Date published: 2019-06-27
Rated 5 out of 5 by from Works great, goes on easy, dries quick for painting, and easy cleanup. If you have a project tha... Works great, goes on easy, dries quick for painting, and easy cleanup. If you have a project that's indoors and you need to paint it super quick they also make a product that's specific for trim work and it dries in approx. 30 minutes.
Date published: 2019-07-08
Rated 4 out of 5 by from I used the DAP almond to add filling to cracks between my deck boards. The only drawback to this ... I used the DAP almond to add filling to cracks between my deck boards. The only drawback to this product was the setup time and dry time, which was 36-48 hours. Other wise it worked well.
Date published: 2019-09-10
Rated 5 out of 5 by from Anyone who is professional should be using this over the ALEX. More elastic, takes paint well int... Anyone who is professional should be using this over the ALEX. More elastic, takes paint well interior or exterior and holds up so much better. For the little cost more it's a no brainer.
Date published: 2019-07-23
Rated 5 out of 5 by from Easy to apply and easy to clean up. Loved that... Easy to apply and easy to clean up. Loved that I did not have to have something to poke into top of tube to start caulking.
Date published: 2019-08-28
Rated 5 out of 5 by from Great Caulking! This is a great product... literally does what it is supposed to do!
Date published: 2019-06-18
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