DAP Dynaflex 230 5.5 oz White Premium Sealant Caulk
DAP Dynaflex 230 5.5 oz White Premium Sealant Caulk
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DAP Dynaflex 230 5.5 oz White Premium Sealant Caulk

4.6 stars out of 163 reviews
(4.6)|
163 ratings
DAP Dynaflex 230 5.5 oz White Premium Sealant CaulkDAP Dynaflex 230 5 5 oz White Premium Elastomeric Sealant3 pack DAP Dynaflex 230 5 5 oz White Premium Elastomeric Sealant
Pack Size:Single

Key item features

  • Superior Flexibility: DAP Dynaflex 230 sealant provides superior flexibility that won't crack due to its silicone-like toughness; ideal for windows, doors, siding, trim, baseboards, and more.
  • Wide Material Adherence: Adheres to a wide range of exterior and interior building materials, such as wood, MDF, PVC, polystyrene, and composite trim; meets ASTM Specification C920, Class 26.
  • Waterproof and Weatherproof: Creates a 100% waterproof and weatherproof seal, ensuring long-lasting durability.
  • Mold and Mildew Resistant: Cured sealant is resistant to mold and mildew, maintaining a clean and fresh look.
  • Quick Curing Time: Reaches full cure in 24 hours and can be painted after 2 hours if desired.
  • Handles Joint Movement: Seals joints up to 2 inches wide and performs like silicone, providing a highly flexible sealant that handles joint movement without cracking.
  • Low Odor and Easy Cleanup: Product is low in odor and cleans up easily with water.
  • Convenient Size: Available in a 5.5 oz selling unit, suitable for various projects.
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Current price is Now $6.50
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was $9.69
$1.18/oz
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Customer ratings & reviews

4.6 out of 5 stars
stars163 ratings146 reviews
How item rating is calculated
  1. 5 stars81% (132)
  2. 4 stars12% (20)
  3. 3 stars2% (3)
  4. 2 stars0% (0)
  5. 1 star5% (8)

Reviews summary

Pros
  • : Quickly cleans with minimal mess.
  • : Forms a tight seal around them.
  • : Forms a reliable bond on multiple surfaces.
  • : Provides even distribution with minimal mess.
  • : Dries quickly without shrinkage.
Neutral
  • : Offers protection in light rain, but may falter in heavy downpours.
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Showing 1-3 of 146 reviews

Jan 1, 2026
Silver
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Would recommend

This white caulk has a good color, which is very pure white. (The clear one is shiny). This caulk can be painted, and it stays flexible. I haven't used it outside, but inside I've sealed tub surrounds, baseboard, shelving edges, medicine cabinets, all with good results. It has almost no odor while curing. The cap is airtight, so I was able to re-use a tube months later - the first bit was runny, but the rest was still good. It does shrink somewhat, but not too bad. It adheres well to tile and acrylic latex painted surfaces. Would recommend!

Helpful?5ZOYYIPECJK123331647
Jul 3, 2025
Teresa
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

good quality caulk

I like that is has flexibility to it. The tube comes in handy for small jobs. It appears to be good quality caulk.

Helpful?5ZOYYIPECJK123331647
May 8, 2025
AtlantaNative
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Love DAP Dynaflex.

Incentivized Review
Helpful?5ZOYYIPECJK123331647

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