CRL V2100 Thermalbond 1/8x3/8 Structural Glazing Spacer Tape

• Structural glazing spacer tape for field and shop glazing
• Designed for two- and four-sided structural silicone glazing systems
• Chemically compatible with commercial silicone sealants
• Architectural black finish (special-order colors available)

CRL Saint-Gobain/Norton V2100 Thermalbond® Tape (SKU: V210438) is a semi-rigid, high-density foam spacer tape with aggressive pressure-sensitive adhesive on both faces. Its formulated open-cell substrate maintains joint dimension control, allows moisture and air transmission for optimal silicone cure, and reduces heat transfer—making it a preferred spacer for structural silicone glazing curtain walls, storefronts, skylights, and windows.

Key differentiators: semi-rigid open-cell construction for reliable spacing, highly aggressive double-sided adhesive for temporary panel hold during shop fabrication, thermal break performance to inhibit window and frame condensation, and broad compatibility with commercial structural silicones.

Common applications: two- and four-sided structural silicone glazing of curtain walls, storefronts, skylights and windows; temporary securing of glazing/panels during unitized system fabrication; holding lightweight veneers while structural silicone cures; providing even sightlines and serving as a thermal break for glass, metal, stone, mineral cement, and plastic panels.

Limitations: Thermalbond® V2100 is a spacer material—not a structural fastener. Do not rely on its adhesive for permanent fastening or to reduce silicone adhesive specified by the silicone manufacturer. Surfaces must be clean before application; position carefully (not repositionable). Some substrates may require Norton Tite‑R‑Bond adhesion promoter.

Typical properties

• Density: 31 lbs./cu.ft. (497 kg/m³)
• Hardness: 35 durometer Shore A
• Force to compress 10%: 31 psi (214 kPa)
• Tensile strength: 180 psi (1241 kPa); Elongation: 125%
• Temperature range: Application 60°F (16°C) to 125°F (52°C); Service -40°F (-40°C) to 180°F (82°C)

Need a reliable structural glazing spacer tape with thermal break performance? Order V210438 Thermalbond® V2100 tape today or contact us for sizes and availability.