DAP Global Inc DAP Dynaflex 230 Premium Elastomeric Latex Sealant, White, 10.1 oz Cartridge, Paintable Waterproof Caulk – 18300

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DAP Global Inc DAP Dynaflex 230 Premium Elastomeric Latex Sealant, White, 10.1 oz Cartridge, Paintable Waterproof Caulk


DAP Dynaflex 230 is a premium elastomeric latex sealant with silicone-like toughness, supplied here as a white 10.1 oz cartridge. It seals joints up to 2 in. wide, covers about 55 linear feet at a 3/16 in. bead, and cleans up with water. Use it on windows, doors, siding, trim, and baseboards, indoors or out.


Key Features:

  • Silicone-Like Toughness: Premium elastomeric latex formula delivers outstanding durability, adhesion, and flexibility.
  • 100% Waterproof: Creates a long-lasting seal that is 100% waterproof and weatherproof.
  • Handles Joint Movement: Highly flexible to handle joint movement from temperature and humidity changes without cracking.
  • Paintable Finish: Paintable latex formula with easy tooling and low odor.
  • Mold & Mildew Resistant: Cured sealant is mold and mildew resistant.
  • Water Clean-Up: Cleans up easily with water and is fully cured in 24 hours.
  • Meets ASTM C920: Meets ASTM Specification C920, Class 25, and Federal Spec TT-S-00230C, Type II, Class A; VOC compliant.

Specifications Table:

Specification Details
Brand DAP Global Inc
Manufacturer model 18300
UPC 070798183001
Sell unit 1 sealant cartridge, 10.1 oz
Material Elastomeric latex sealant
Color / finish White
Container size 10.1 oz cartridge
Max joint width Up to 2 in.
Coverage per unit Approx. 55 linear ft. at a 3/16 in. bead
Standard ASTM C920, Class 25; Federal Spec TT-S-00230C, Type II, Class A
Cure time Fully cures in 24 hours
Intended use Caulking and sealing air leaks around windows, doors, siding, trim, and baseboards; interior/exterior
Adheres to Wood, MDF, PVC, polystyrene, and composite trimboard
VOC VOC compliant
Cured properties Mold and mildew resistant

Coverage & How Much You Need:

One 10.1 oz cartridge covers approximately 55 linear feet at a 3/16 in. bead; measure your joint length and bead size to determine how many cartridges you need.

Fit and Compatibility:

Adheres to a wide range of building materials including wood, MDF, PVC, polystyrene, and composite trimboard, indoors or outdoors. Available in other colors and sizes from the same Dynaflex 230 line; this listing is the white 10.1 oz cartridge.


Frequently Asked Questions (FAQ):

Q: What is included in one order?
A: One 10.1 oz cartridge of DAP Dynaflex 230 premium elastomeric latex sealant in white.


Q: How far does one cartridge go?
A: About 55 linear feet at a 3/16 in. bead; wider joints reduce coverage.


Q: Is it paintable?
A: Yes, it is a paintable latex sealant that tools easily and cleans up with water.


Q: Where can it be used?
A: Indoors or outdoors around windows, doors, siding, trim, and baseboards; it adheres to wood, MDF, PVC, polystyrene, and composite trimboard.


Q: How long does it take to cure?
A: It is fully cured in 24 hours.


Q: Is it flexible enough for moving joints?
A: Yes, it is ASTM C920 Class 25 rated and handles joint movement from temperature and humidity changes without cracking.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

Pick Dynaflex 230 when you want silicone-tough flexibility in a paintable, water-cleanable latex; it is an excellent exterior choice where joint movement is expected. Cut the nozzle at a 45-degree angle slightly smaller than the joint and tool the bead before it skins. For continuous wet areas like tubs and showers, a dedicated kitchen and bath product may be the better fit.

California residents: see the product's Prop 65 warnings before use.


Get the DAP Dynaflex 230 white 10.1 oz sealant cartridge today for a flexible, waterproof, paintable seal.

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