DAP DYNAFLEX 230 Premium Elastomeric Interior/Exterior Sealant

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  • Quantity
    View "Full Pricing Table" below for details including case sizes and volume pricing.
  • Color
    Cedar Tan-
    Dark Bronze-
  • Size
    10.1 fl oz., 10.1 fl oz. (clear)
    Purchased Most Frequently: 10.1 fl oz. (White)
  • Price
    $ Price/photo will update once Color & Size chosen.
Before ordering, please read the "Product Description & Specs" tab content for more information about this item.

Product Description

DAP DYNAFLEX 230 Premium Elastomeric Interior/Exterior Sealant is a premium elastomeric latex sealant with silicone-like toughness. It combines outstanding durability, adhesion, and flexibility with easy tooling, paintability, low odor, and water clean-up. It is highly flexible to handle joint movement caused by variations in temperature and humidity without cracking. It provides a long-lasting, durable seal that is 100% waterproof and weatherproof. Ideal for sealing air leaks around windows, doors, siding, trim, and baseboards to improve the energy efficiency of a home and reduce utility costs. Cured sealant is mold and mildew-resistant. Lifetime Guarantee. Meets ASTM Specification C920, Class 25. VOC compliant. Interior/exterior use.

Features & Benefits

  • Low odor
  • Easy water clean-up
  • Seals joints up to 2 inches wide
  • Lifetime warranty
  • Exceeds ASTM C920, Class 25
  • 100% waterproof & weatherproof seal
  • Paint ready in 2 hours
  • Silicone tough with superior flexibility and crackproof performance
  • Interior/exterior use

Uses & Applications

For best results:

  • Apply in temperatures above 40°F
  • Do not apply when rain or freezing temperatures are forecasted within 24 hours. Cooler temperatures and higher humidity will slow down dry time.
  • Not for continuous underwater use or filling surface defects.
  • Joint size should not exceed 2 inches wide x 1/2 inches deep. If joint depth exceeds 1/2 inch, use backer rod material.
  • Store sealant away from extreme heat or cold.

Use for Caulking & Sealing:

  • Windows
  • Doors
  • Siding
  • Trim
  • Molding
  • Pipes
  • Vents
  • Corner Joints
  • Butt Joints
  • Tuck Pointing
  • Other gaps and cracks

Adheres to:

  • Wood - painted and unpainted
  • Aluminum
  • Most metals
  • Vinyl
  • Most plastics
  • Plaster
  • Drywall
  • Glass
  • Fiber Cement
  • Stucco
  • Composite
  • PVC trimboard
  • Brick
  • Stone
  • Concrete
  • Mortar
  • Most common building materials
Country of Origin: United States.
* Multiple cases may be shipped per package in order to minimize the charge for shipping.


Technical Information

DAP DYNAFLEX 230 Premium Elastomeric Interior/Exterior Sealant
  • Paintable: Yes
  • Country of Origin: United States
Note: Specifications are those given by manufacturers and are not tested for accuracy.

Download Datasheets

The following downloads are available for this product:

Download Safety Data SheetDownload Technical Data Sheet

DYNAFLEX 230 Standard sizes


10.1 fl oz.

DYNAFLEX 230/ 10112

Single Item (1-11 Items)

1 - 4 Cases (12-59 Items)

5 - 9 Cases (60-119 Items)

10+ Cases (>= 120 Items)


a 15% discount

a 17% discount

a 18% discount





10.1 fl oz. (clear)

DYNAFLEX 230/ 101C

UPC = 070798183056

Single Item (1-11 Items)

1 - 4 Cases (12-59 Items)

5 - 9 Cases (60-119 Items)

10+ Cases (>= 120 Items)


a 15% discount

a 17% discount

a 18% discount





Question & Answers

User Reviews

Made in the USA
hot melt rubber (synthetic)
Offers the widest range of application flexibility available. Exhibits excellent processing performance whether manually or automatically applied. Has superior tensile strength, adhesion properties and holding force which ensures consistent, reliable seals. Hot melt adhesive will bond faster to a surface which is referred to as quick-grab or quick-stick. It typically has higher tack (will feel stickier to the touch), but is also softer. It has lower heat resistance, shear resistance, and sometimes UV resistance than an acrylic adhesive. NOTE: it is called hot melt because the adhesive is applied hot by the manufacturer and then hardens as it cools (you do not need to apply heat to the tape yourself).
natural rubber
Properties are similar to that of hot melt rubber, but natural rubber often holds where other adhesives won't (recycled fibers, dust, cold, heat and heavy loads). It provides good overall adhesion and moisture resistance.
Offer excellent performance, especially for applications in temperatures less than 40°F and greater then 120°F. It provides excellent clarity, has high shear strength, is usually more permanent/durable even when exposed to moisture, and it ages well over extended periods in fluorescent and sunlight. Since it remains clear for the life of the application and does not yellow over time it is ideal for applications such as sealing white cartons. While it has good initial adhesion it does take 24-48 hours to cure and to achieve its maximum bond strength (has gradual adhesion buildup). Another difference between hot melt rubber and acrylic adhesive is if you fold tape over making the two adhesive sides touch the acrylic adhesive will remain attached to the carrier (e.g. paper, film) while a hot melt adhesive will stick to itself and pull off of the carrier. It is the best choice for clarity, UV resistance and aging characteristics.
Is great for extreme temperature applications since silicone adhesive can work in continuous operating temperatures from -100°F to 500°F. They also exhibit good chemical resistance, retain electrical properties, and remove cleanly with little or no residue.
zinc oxide
Zinc oxide based adhesive formula is a skin-friendly adhesive which is commonly used on sports medicine tapes.
Thickness, AKA caliper or gauge, refers to the distance from one surface of a tape backing, or adhesive, to the other.
1 mil = 1/1000 of an inch
Examples: 1/16 inch = 62.5 mils; 1/32 inch = 31.25 mils
The cut level indicates how many grams of cutting load a glove can withstand from a sharp blade before being penetrated.
Lower gauge gloves are heavier - have thicker construction, fewer stiches knitted per inch and offer less dexterity.
Higher gauge gloves are lighter - have thinner/finer construction, more stitches knitted per inch and offer more dexterity.
Gloves offered typically runs from 7 to 18 (12 and 13 are in the middle of the scale).
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