Internet #100035980

Model # 18275

Store SKU #284425

Store SO SKU #1000058280

0070798183001

DAP

Dynaflex 230 10.1 oz. White 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
$ 4 68
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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 the home depot's buying guide
  • click here for the how to caulk project guide



  • 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 #: 18275
Sku #: 284425
Internet #: 100035980

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 the home depot's buying guide
  • click here for the how to caulk project guide



  • California residents see Prop 65 WARNINGS

Info & Guides

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Specifications

Dimensions

Individual size (oz.)
10.1

Details

Color/Finish
White
Coverage (linear ft.)
55
Cure Time (hours)
24
Dry Color Family
White
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
Pack Size
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
White
Coverage (linear ft.)
55
Cure Time (hours)
24
Dry Color Family
White
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
Pack Size
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

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: HandyAndy
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: HandyAndy
Date published: 2019-03-12

I bought clear and it's white does it dry clear

Is there a mix up at factory
Asked by: Fred
Yes, it will dry clear.
Answered by: DoggieDaddy
Date published: 2018-09-08

If left unpainted does the white turn yellow?

If left unpainted when used in exterior application does this product remain white or does it yellow with age? thx,
Asked by: BuyerBeware
it sure can
Answered by: CaboBear
Date published: 2019-06-05
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Customer Reviews

Dynaflex 230 10.1 oz. White Premium Indoor/Outdoor Sealant is rated 4.0 out of 5 by 328.
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 5 out of 5 by from Yes, worked very well, first one I ever bought from... Yes, worked very well, first one I ever bought from HD, must be the first fresh one I ever got! I had to do some caulking around a new pre-hung door to a stone house, and I wanted to get it looking good, I usually take a fine bristle brush and smooth it as I go, with a fresh tube, it's the best it's ever turned out. Thanks HD!
Date published: 2019-05-25
Rated 3 out of 5 by from I installed 230 caulkwhen installing vinyl window replacements and 20... I installed 230 caulkwhen installing vinyl window replacements and 20 %of the windows failed in heavy rain areas. Not impressed with the product. I'm looking further into how well the installer covered the area needed to seal the window. study is still inconclusive.
Date published: 2019-04-18
Rated 5 out of 5 by from Hands down, my choice for latex every time I’ve used this on many projects to fill gaps and cracks between trim, and it does t seamlessly. Its easy to work with and cleans up with a damp rag, and if you put too much on, just take the extra on your finger and run it somewhere else.
Date published: 2019-05-19
Rated 5 out of 5 by from very easy to apply, but wear gloves, it isn't as... very easy to apply, but wear gloves, it isn't as easy to get off your hands as regular caulk. Main reason I like it is it's adherence quality and it stretches without tearing out.
Date published: 2019-05-29
Rated 5 out of 5 by from 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.
Date published: 2019-04-16
Rated 5 out of 5 by from Excellent product. Used this DAP product for painting preparation work. Highly recommend. Excellent product. Used this DAP product for painting preparation work. Highly recommend.
Date published: 2019-06-11
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