Internet #306283455

Model # 18220

Store SKU #1003545321

0070798182202

DAP

Dynaflex Ultra 10.1 oz. Black Advanced Exterior Window, Door, and Siding Sealant

  • Lifetime resistance to mold, mildew, and algae
  • Weatherproof seal that maintains strong flexibility and adhesion
  • Rain and paint ready in 1 hour
$ 6 48
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Lifetime resistance to mold, mildew, and algae
  • Weatherproof seal that maintains strong flexibility and adhesion
  • Rain and paint ready in 1 hour
DAP DYNAFLEX ULTRA Advanced Exterior Sealant powered by WeatherMax Technology resists UV fading, chalking, crumbling, cracking and dirt build up so the sealant stays looking clean and new. Permanently flexible with strong adhesion for a long-lasting, weatherproof seal that stands up to the elements and provides All Weather Protection. Easy application with one hour rain and paint ready times for better productivity. Provides lifetime, mold, mildew and algae resistance.
  • Tough surface resists dirt build up and water absorption
  • 100% waterproof and weatherproof seal
  • Lifetime mold, mildew and algae resistance
  • 1 hour rain and paint ready for better productivity
  • Permanently flexible
  • Strong multi-material adhesion
  • Easy water clean-up and low odor
  • Exterior use only
  • Meets ASTM C920, class 35






  • California residents see Prop 65 WARNINGS

Product Overview

  • Lifetime resistance to mold, mildew, and algae
  • Weatherproof seal that maintains strong flexibility and adhesion
  • Rain and paint ready in 1 hour
Model #: 18220
Sku #: 1003545321
Internet #: 306283455

DAP DYNAFLEX ULTRA Advanced Exterior Sealant powered by WeatherMax Technology resists UV fading, chalking, crumbling, cracking and dirt build up so the sealant stays looking clean and new. Permanently flexible with strong adhesion for a long-lasting, weatherproof seal that stands up to the elements and provides All Weather Protection. Easy application with one hour rain and paint ready times for better productivity. Provides lifetime, mold, mildew and algae resistance.

  • Tough surface resists dirt build up and water absorption
  • 100% waterproof and weatherproof seal
  • Lifetime mold, mildew and algae resistance
  • 1 hour rain and paint ready for better productivity
  • Permanently flexible
  • Strong multi-material adhesion
  • Easy water clean-up and low odor
  • Exterior use only
  • Meets ASTM C920, class 35






  • 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
  • Lifetime resistance to mold, mildew, and algae
  • Weatherproof seal that maintains strong flexibility and adhesion
  • Rain and paint ready in 1 hour
DAP DYNAFLEX ULTRA Advanced Exterior Sealant powered by WeatherMax Technology resists UV fading, chalking, crumbling, cracking and dirt build up so the sealant stays looking clean and new. Permanently flexible with strong adhesion for a long-lasting, weatherproof seal that stands up to the elements and provides All Weather Protection. Easy application with one hour rain and paint ready times for better productivity. Provides lifetime, mold, mildew and algae resistance.
  • Tough surface resists dirt build up and water absorption
  • 100% waterproof and weatherproof seal
  • Lifetime mold, mildew and algae resistance
  • 1 hour rain and paint ready for better productivity
  • Permanently flexible
  • Strong multi-material adhesion
  • Easy water clean-up and low odor
  • Exterior use only
  • Meets ASTM C920, class 35






  • California residents see Prop 65 WARNINGS

Product Overview

  • Lifetime resistance to mold, mildew, and algae
  • Weatherproof seal that maintains strong flexibility and adhesion
  • Rain and paint ready in 1 hour
Model #: 18220
Sku #: 1003545321
Internet #: 306283455

DAP DYNAFLEX ULTRA Advanced Exterior Sealant powered by WeatherMax Technology resists UV fading, chalking, crumbling, cracking and dirt build up so the sealant stays looking clean and new. Permanently flexible with strong adhesion for a long-lasting, weatherproof seal that stands up to the elements and provides All Weather Protection. Easy application with one hour rain and paint ready times for better productivity. Provides lifetime, mold, mildew and algae resistance.

  • Tough surface resists dirt build up and water absorption
  • 100% waterproof and weatherproof seal
  • Lifetime mold, mildew and algae resistance
  • 1 hour rain and paint ready for better productivity
  • Permanently flexible
  • Strong multi-material adhesion
  • Easy water clean-up and low odor
  • Exterior use only
  • Meets ASTM C920, class 35






  • 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

Caulk Form
Standard Tube
Caulk Type
Latex
Color/Finish
Black
Coverage (linear ft.)
55
Cure Time (hours)
1
Dry Color Family
Black
Dry to touch (min.)
30
Features
Moisture Resistant,Mold and Mildew Resistant,Permanently Flexible
Indoor/Outdoor
Outdoor
Interior/Exterior
Exterior
Longevity (years)
50
Number of Tubes Included
12
Paint Tool Product Type
Caulk

Warranty / Certifications

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

Specifications

Dimensions

Individual size (oz.)
10.1

Details

Caulk Form
Standard Tube
Caulk Type
Latex
Color/Finish
Black
Coverage (linear ft.)
55
Cure Time (hours)
1
Dry Color Family
Black
Dry to touch (min.)
30
Features
Moisture Resistant,Mold and Mildew Resistant,Permanently Flexible
Indoor/Outdoor
Outdoor
Interior/Exterior
Exterior
Longevity (years)
50
Number of Tubes Included
12
Paint Tool Product Type
Caulk

Warranty / Certifications

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

Questions & Answers

Is this a flat or gloss black?

Is this a flat or gloss black?
Asked by: John
I would consider it a glossy finish.
Answered by: Jimmy8081
Date published: 2019-08-06

what is the service temperature range?

use for pipe next to chimney.
Asked by: chris
Used mine for driveway cracks not sue about chimney
Answered by: Steve
Date published: 2019-06-25

Why is this product "exterior only"? I have an interior application where I want at true black ca...

Why is this product "exterior only"? I have an interior application where I want at true black caulk. Why couldn't I use this?
Asked by: Curious
Both interior and exterior.
Answered by: Anonymous
Date published: 2019-05-21

Is this paintable?

Asked by: RLTS
Yes
Answered by: Anonymous
Date published: 2019-05-21
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Customer Reviews

Dynaflex Ultra 10.1 oz. Black Advanced Exterior Window, Door, and Siding Sealant is rated 4.3 out of 5 by 67.
Rated 5 out of 5 by from Great sealer! My only concern is the price; the black caulks seem to have gone up recently. I... Great sealer! My only concern is the price; the black caulks seem to have gone up recently. I used it to seal some gaps in concrete; it worked very well.
Date published: 2019-08-06
Rated 1 out of 5 by from After prepping several windows to be caulked - the product never cured!! After caulking my window... After prepping several windows to be caulked - the product never cured!! After caulking my windows it rained overnight. Product stated that if it rained after 1 hour it wouldn't be a problem. It had at least 4-5 hours to cure before it rained. The caulk after waiting 14 hours had ran and is still soft. It washed out in several areas too. I'll give it another 24 hrs. Obviously I can't paint either. What a waste of time.
Date published: 2019-05-31
Rated 1 out of 5 by from I used this to caulk cabinets to a granite countertop. The temperature of the tops was around 70 ... I used this to caulk cabinets to a granite countertop. The temperature of the tops was around 70 degrees and the humidity was high. The caulk took forever to skin and is soft with little adhesion 5 days later. I hope it eventually cures so I don't have to re-caulk the entire job.
Date published: 2019-06-01
Rated 5 out of 5 by from Best caulk ever. Applied shortly before rainfall and it delivered... Best caulk ever. Applied shortly before rainfall and it delivered as advertised. Water ready in an hour. Thank you, DAP! Your products are the best!
Date published: 2019-06-12
Rated 4 out of 5 by from all of these products are a bit sloppy to work... all of these products are a bit sloppy to work with. this one was more liquid/less stiff. it worked fine. just sloppy.
Date published: 2019-07-16
Rated 5 out of 5 by from Works great, I have used it on concrete where... Works great, I have used it on concrete where there was gaps that needed to be filled.
Date published: 2019-06-10
Rated 5 out of 5 by from Soft and easy to apply, color blend well @time of application. No mess, is great. Soft and easy to apply, color blend well @time of application. No mess, is great.
Date published: 2019-06-04
Rated 4 out of 5 by from It works well enough to do the job but it’s... It works well enough to do the job but it’s consistency makes for a messy cleanup.
Date published: 2019-08-06
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