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DOWSIL™ 123 Silicone Seal-All Colors

A pre-formed, ultra-low modulus silicone extrusion that is bonded to substrates using DOWSIL™ 791 Silicone Perimeter Sealant or DOWSIL™ 795 Silicone Building Sealant. This product can be used in both new and remedial construction applications.

Examples of DOWSIL™ 123 Silicones Seal Custom Color

Custom silicone rubber weathersealing solutions

Our toughest, most versatile silicone rubber designs for complex weathersealing and joint sealing repair – preformed extruded and injection-molded custom shapes.

Meet Tough Building Restoration Weathersealing Challenges

Repair failed weatherseals easily, attractively and cost-effectively with DOWSIL™ 123 Silicone Seal Custom Designs H.C.

DOWSIL™ 123 Silicone Seal Custom Designs H.C. are preformed silicone seals intended for use in repair of failed construction joints and glazing details. The 123 sealing system consists of a preformed silicone extrusion or custom shape that can be bonded to a wide variety of construction substrates using DOWSIL™ 795 Silicone Building Sealant or other recommended Dow brand sealants. DOWSIL™ 123 Silicone Seal Custom Color offers a choice of various durometers in two different tear-resistant formulations to provide customized performance for specific applications. 

Ideal for weathersealing the unique building transitions you find in renovation projects, this robust system consists of preformed two- and three-dimensional shapes made of high-consistency silicone rubber that can be bonded to a wide variety of construction substrates using select Dow brand building sealants.

A multitude of design and performance options

  • 12- to 36-inch translucent or pigmented silicone calendered sheets
  • 10 standard colors or custom color matching
  • Complex custom extrusions with single or dual durometers
  • Custom, three-dimensional molded silicone rubber shapes
  • Two different tear-resistant formulations – general-purpose and high-tear

The Ultimate in Weathersealing Versatility
Explore the features and benefits of DOWSIL™ 123 Silicone Seal.

Façade Engineering and Architectural Design Team
Learn how our in-house specialists can help you push the boundaries of building design.

Properties

These values are typical properties and are not intended for use in preparing specifications.

  • Color Adobe Tan, Blue Spruce, Bronze, Charcoal, Grey, Limestone, Rustic Brick, Sandstone, White, Custom, Black, Dusty Rose
  • Durometer - Shore A 25 Shore A
  • Elongation 400 %
  • Movement Capability -75 to 200 %
  • Tear Strength 100 ppi
  • Tensile Strength 40 psi
  • DOWSIL™ ALLGUARD Silicone Elastomeric Coating Pastel Tint Base
    Designed to waterproof above-grade exterior masonry substrates, such as concrete block, fluted block, brick, stucco, synthetic stucco, poured concrete, precast concrete, exterior insulation finish systems (EIFS) and previously coated masonry substrates. AllGuard is available in 55 standard colors and unlimited custom colors. Material Safety Data Sheets are available for each of the three tint bases only: Pastel, Mid Tone, and Deep.

  • DOWSIL™ 795 Silicone Building Sealant
    A one-part, cold-applied, non-sagging silicone material that cures to a medium modulus silicone rubber upon exposure to atmospheric moisture.

  • DOWSIL™ ALLGUARD Silicone Elastomeric Coating Mid Tint Base
    Designed to waterproof above-grade exterior masonry substrates, such as concrete block, fluted block, brick, stucco, synthetic stucco, poured concrete, precast concrete, exterior insulation finish systems (EIFS) and previously coated masonry substrates. AllGuard is available in 55 standard colors and unlimited custom colors. Safety Data Sheets are available for each of the three tint bases only: Pastel, Mid Tone, and Deep.

  • DOWSIL™ ALLGUARD Silicone Elastomeric Coating Deep Tint Base
    Designed to waterproof above-grade exterior masonry substrates, such as concrete block, fluted block, brick, stucco, synthetic stucco, poured concrete, precast concrete, exterior insulation finish systems (EIFS) and previously coated masonry substrates. AllGuard is available in 55 standard colors and unlimited custom colors. Safety Data Sheets are available for each of the three tint bases only: Pastel, Mid Tone, and Deep.

No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.

No sales specification could be found for this material in selected language

DOWSIL™ 123 Silicone Seal-All Colors
No Technical Data Sheets are available for this product
Please Contact Dow for additional information.

DOWSIL™ 123 Silicone Seal-All Colors


No Regulatory Data Sheets are available for this product


DOWSIL™ 123 Silicone Seal-All Colors
Please Contact Dow for distribution options available for this product.