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DAP®

10.1-Ounce Brown Premium Indoor/Outdoor Sealant

Mfg.#
18418
Sku#
977066
  • Delivers a "Silicone Tough" latex formulation for outstanding exterior performance
  • 100% waterproof & weatherproof
  • Seals joints up to 2” wide
  • Superior flexibility & crack proof
  • Ideal for composite wood & PVC trimboard

* Estimated stock levels as of Thu, Apr 16, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Brown

Description

DAP DYNAFLEX 230 delivers a "Silicone Tough" latex formulation for outstanding exterior performance against the elements. Developed for flexibility and crack proof performance, this sealant endures expansion and contraction without cracking or losing its seal. The paintable, durable sealant can fill gaps up to 1 in wide and the cured sealant is mold and mildew resistant. It has excellent adhesion to a wide range of building materials including wood, MDF, PVC, polystyrene, and composite trimboard. Easy to gun out, tools smoothly and can be cleaned up with soap and water. Interior/exterior use. Meets ASTM Specification C920, Class 25.

Specifications

General

Applicable Materials wood, MDF, PVC, polystyrene, and composite trimboard
Color Brown
Indoor/Outdoor Indoor/Outdoor
Odor/Scent Low
Pack Qty 1
Type Sealent

Manufacturing Details
The following information is subject to change without notice

Country of Origin US
Prop 65 Warning Warning WARNING: This product can expose you to chemicals including Silica, crystalline, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Shop USA Yes

Dimensions

Size 10 oz

Label Information

Certification, Codes, Standards ASTM Specification C920, Class 25

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