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DAP WDS Window, Door & Siding 100% Silicone Rubber Sealant

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    View "Full Pricing Table" below for detailed pricing and additional sizes!
  • Color
  • Item Size
    9.8 fl oz.
  • Price
    $ Price/photo will update once color & size have been chosen.
Before ordering, please read the "Product Description & Specs" tab content for more information about this item.

Product Description

DAP Window, Door & Siding 100% Silicone Rubber Sealant is a durable, 100% waterproof and weatherproof sealant for sealing out drafts, water and moisture around windows, doors, siding, gutters, flashing, pipes, vents and more. It stays flexible to withstand expansion and contraction without cracking or losing adhesion. Cured sealant is mold and mildew resistant. Interior/exterior use.

Features & Benefits

  • When tested in accordance with ASTM C719 meets the ASTM C920 requirements for Class 25, Use G
  • 100% waterproof & weatherproof seal
  • Flexible
  • Cured sealant is mold and mildew resistant
  • Interior/exterior use

Use for Caulking and Sealing:

  • Windows
  • Doors
  • Siding
  • Trim
  • Pipes
  • Vents
  • Ducts
  • Gutters
  • Flashing

Adheres To:

  • Wood
  • Composite wood
  • Aluminum
  • Most metals
  • Glass
  • Ceramic
  • Porcelain
  • Vinyl
  • Most plastic and rubbers
  • Most rubbers
Made in the U.S.

Application Instructions

Surface must be clean, dry, structurally sound and free of old caulk, dirt, dust & other foreign material.

  1. If using squeeze tube, remove cap and cut nozzle at 45° angle to desired bead size. Unscrew nozzle and remove foil seal. Replace nozzle.
  2. Is using cartridge, cut nozzle at a 45° angle to desired bead size. Puncture inner foil seal. Load into caulk gun.
  3. Fill gap or crack with sealant.
  4. If necessary, tool or smooth the bead of sealant with a finishing tool before the sealant skins over.
  5. Allow sealant to cure for at least 12 hours before exposing to water.


Technical Information

DAP WDS Window, Door & Siding 100% Silicone Rubber Sealant
  • Standards Met: Meets ASTM C920, Specification C719, Class 25
  • Sandable: No
  • Paintable: No
  • Cured Color: Clear or White
Note: Specifications are those given by manufacturers and are not tested for accuracy.

WDS Standard sizes


9.8 fl oz.

WDS/ 9812

Single Item (1-11 Items)

1 - 2 Cases (12-35 Items)

3 - 4 Cases (36-59 Items)

5+ Cases (>= 60 Items)


a 23% discount

a 23% discount

a 24% discount





Question & Answers

User Reviews

DAP WDS Window, Door & Siding 100% Silicone Rubber Sealant
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
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