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Shop Gifts for the tile installer in your life
Shop Gifts for the tile installer in your life
Wedi sealant cartridge on a white background
Sausage tube of Wedi waterproofing sealant on a white background
Wedi sealant cartridge on a white background
Sausage tube of Wedi waterproofing sealant on a white background

wedi Sealant

SKU
by wedi
$21.60 - $32.40
$21.60
$21.60 - $32.40
$21.60
Choose a Sealant Option

wedi Joint Sealant – 10.5 oz Cartridge & 20 oz Sausage Tube

The go-to waterproof adhesive for all wedi system installations. Whether you're sealing seams, waterproofing fasteners, or assembling building panels, wedi Joint Sealant creates strong, flexible, and watertight bonds—no extra tape required. Available in 10.5 oz cartridge and 20 oz sausage tube formats to suit your project size and tool preference.

Features & Benefits

  • 100% Waterproof Sealing
    Seals all wedi seams, corners, and fastener points with permanent watertight adhesion—no extra mesh tape needed.
  • Flexible & Durable SMP Technology
    Permanently elastic with Silyl Modified Polymer (SMP) formula that resists cracking from thermal movement, vibrations, or structural flex.
  • Versatile Application Options
    Choose between a standard caulking gun–friendly 10.5 oz cartridge or the larger 20 oz sausage tube for commercial jobs and extended applications.
  • Safe, Odor-Free, Eco-Conscious
    Solvent-free, isocyanate-free, and PVC-free—low VOC and odorless for safer indoor application.
  • Superior Performance Across Temperatures
    Rated for continuous exposure from -40°F to 250°F without compromising bond integrity.

Technical Specifications

Property Value
Base Material Silyl Modified Polymer (SMP)
Color Light Grey
Skin Forming Time ~20 minutes
Curing Method Moisture
Tensile Strength 350 psi
Shore A Hardness 50
UV Resistance Excellent
Application Temperature 41°F to 95°F
Service Temperature Range -40°F to 250°F
VOC Content Low
Odor None

Common Uses

  • Sealing seams between wedi building panels

  • Waterproofing joints around wedi niches and benches

  • Covering screw penetrations in wedi systems

  • Reinforcing seams in wedi shower bases and curb installations

  • Bonding wedi panels to one another or to other waterproof surfaces

Installation Tips

  • Apply directly to clean, dry wedi surfaces

  • Tool the sealant within 15–20 minutes for a smooth finish

  • Allow proper curing time before tiling (varies with humidity)

  • For deep seams or heavy-duty waterproofing, consider backer rod beneath sealant line

Compliance & Certifications

  • Meets or exceeds ASTM waterproofing standards

  • VOC compliant in all 50 U.S. states

  • Approved for residential and commercial use

Variant Comparison Table

Variant Volume Format Tools Needed Ideal Use Case
10.5 oz Cartridge 10.5 oz Standard caulking tube Standard caulk gun Small to mid-size residential showers
20 oz Sausage Tube 20 oz Foil sausage pack Sausage-style caulk gun Larger commercial projects or high-volume sealing

 

wedi Joint Sealant TDS

More Details

The wedi Joint Sealant is a flexible, high-performance waterproofing adhesive engineered specifically for use with the complete wedi building and shower system. Available in two formats—10.5 oz cartridge and 20 oz sausage tube—this SMP-based sealant ensures seamless, watertight bonds at panel joints, curb seams, fastener locations, and more. It's an essential component for installers seeking a professional, mold-resistant seal without relying on tape reinforcement.

Unlike traditional silicones or caulks, wedi Joint Sealant uses Silyl Modified Polymer (SMP) chemistry, offering exceptional green strength (immediate grab), permanent elasticity, and strong adhesion even in damp, alkaline environments. It’s ideal for creating 100% waterproof shower systems with wedi boards, pans, benches, curbs, and more.

Formulated to resist vibration, thermal expansion, and structural stress, it outperforms conventional sealants across commercial and residential applications. It’s odorless, neutral-curing, and VOC compliant in all 50 states. Whether you're a seasoned contractor or a detail-oriented DIYer, wedi Joint Sealant is your trusted ally in building long-lasting, leak-proof tiled showers.

Manufacturer

Let customers speak for us

from 478 reviews
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I've been using these spaces for years. I love them. I'm just a little nervous because they changed the color of the spacers. I think they were bought out so I'm not sure if they're going to be the exact same size. They changed The colors the white ones are now 1/16 instead of green they switched all the colors around. I'm glad I have all my old ones

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Well made and lots better then some other products that I had used in the past.

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