SGT T2040 Double Sided Polyurethane Structural Glazing Tape
SGT T2040GZD is a very high density, high modulus polyurethane foam coated with a high performance permanent acrylic adhesive (I645) on both sides and a 55# Gold Glassine liner. Adhesion to steel is 86 oz/in at 15 minutes dwell and 106 oz/in at 72 minutes dwell per PSTC-101 MOD. The foam carrier has a service temperature of -40°F to 250°F and the acrylic adhesive service temperature is -4°F to 300°F. The product passes FMVSS-302 at .063″ or thicker and is suited to curtain walls, silicone structural glazing, skylights, auto glass replacement, thermal breaks, and vibration damping applications.
Key Properties
- Adhesion to Steel, 72 Min Dwell (2 mil AL Foil Backing): 106 oz/in (PSTC-101 MOD)
- Adhesion to Steel, 15 Min Dwell (2 mil AL Foil Backing): 86 oz/in (PSTC-101 MOD)
- Tensile Strength: 230 psi (ASTM D3574)
- Service Temperature (Foam): -40°F to 250°F
- Carrier / Liner: Polyurethane Foam / 55# Gold Glassine Liner
- Thickness Range: 1/16″ – 1/2″
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 1/16″, 3/32″, 1/8″, 3/16″, 1/4″, 5/16″, 3/8″, 1/2″ | — |
| Color | Black | — |
| Polymer | Polyurethane Foam | — |
| Liner | 55# Gold Glassine Liner | — |
| Adhesive System | Permanent Adhesive | — |
| Adhesive Side | Double Sided Adhesive | — |
| Adhesive Type | Acrylic (I645) | — |
| Cell Structure | Open Cell | — |
| Acrylic Adhesive Laminating Temperature | 68°F to 100°F | — |
| Acrylic Adhesive Service Temperature | -4°F to 300°F | — |
| Density | 17 – 23 lb/ft³ | ASTM D3574 |
Adhesion Properties
| Property | Value | Test Method |
| Adhesion to Steel, 15 Min Dwell (2 mil AL Foil Backing) | 86 oz/in | PSTC-101 MOD |
| Adhesion to Steel, 72 Min Dwell (2 mil AL Foil Backing) | 106 oz/in | PSTC-101 MOD |
Mechanical Properties
| Property | Value | Test Method |
| Compression Deflection @ 25% | 30 – 50 psi | ASTM D1056 |
| Compression Force Deflection @ 25% | 23.1 psi | ASTM D3574 |
| Compression Set (Max) | 3% | ASTM D1056 |
| Tensile Strength | 230 psi | ASTM D3574 |
| Elongation | 140% | ASTM D3574 |
| Resilience | 38% | ASTM D2632 |
| Tear Strength | 25 lb/in | ASTM D624 |
Thermal Properties
| Property | Value | Test Method |
| Service Temperature | -40°F to 250°F | — |
| R Factor | 2.38 per inch | — |
Flame & Fire Performance
| Property | Value | Test Method |
| FMVSS-302 | Pass @ .063″ or Thicker | — |
Compliance
- FMVSS-302 — Compliant (at .063″ or Thicker)
- Curtain walls and silicone structural glazing systems where simultaneous adhesive bonding of both faces is required to bond glass to frame in a single assembly step
- Solariums, skylights, and storm window assemblies requiring a double-sided adhesive foam tape that bonds and seals in one operation
- Auto glass replacement applications where both adhesive faces bond simultaneously to the glass and frame substrate
- 2 and 4-sided structural glazing systems where the double-sided construction eliminates the need for a separate bonding step on the second face
- Thermal break and vibration damping components requiring adhesive attachment on both bonding surfaces
Common industries: glazing, fenestration, curtain wall, automotive, construction, architecture.
SGT T2040GZD is the double-sided adhesive version of H-O Products’ SGT T2040 structural glazing tape system, featuring the same very high density, high modulus open cell polyurethane foam carrier coated with a permanent acrylic adhesive (I645) on both sides and protected by a 55# Gold Glassine liner. The acrylic adhesive provides strength and dimensional stability, conforms to flat and curved surfaces, and has good dimensional stability.
It is designed for curtain walls, silicone structural glazing systems, solariums, skylights, auto glass replacement, thermal breaks, 2 and 4-sided structural glazing systems, and vibration damping where adhesive bonding on both faces is required simultaneously.
The foam carrier properties are consistent with the SGT T2040 series: compression deflection of 30–50 psi at 25% per ASTM D1056, CFD of 23.1 psi at 25% per ASTM D3574, maximum compression set of 3% per ASTM D1056, tensile strength of 230 psi, elongation of 140%, tear strength of 25 lb/in per ASTM D624, resilience of 38% per ASTM D2632, and R factor of 2.38 per inch.
The foam is thermoformable, dimensionally stable, breathable, and fully compatible with silicones and most glazing compounds and adhesives. The acrylic adhesive laminating temperature is 68°F to 100°F and its service temperature is -4°F to 300°F. FMVSS-302 passes at .063″ or thicker.
Compliant with FMVSS-302 (at .063″ or Thicker).
What differentiates the SGT T2040GZD from the single-sided SGT T2040GZ and the bare SGT T2040 foam?
The SGT T2040GZD is the double-sided adhesive version of the SGT T2040 structural glazing tape system, providing permanent acrylic adhesive (I645) on both faces for applications where simultaneous bonding of both surfaces is required in a single assembly step. The SGT T2040GZ provides adhesive on one side only, and the bare SGT T2040 is supplied without any adhesive for applications where bonding is handled separately or the foam acts as a mechanical spacer or thermal break.
Why is peel adhesion important for a double-sided structural glazing tape?
Peel adhesion determines the force required to separate the adhesive bond from the substrate, governing the tape's ability to maintain a durable bond to both bonded surfaces under wind load, thermal cycling, vibration, and long-term weathering. The SGT T2040GZD achieves 86 oz/in at 15 minutes dwell and 106 oz/in at 72 minutes dwell per PSTC-101 MOD, confirming that the acrylic (I645) adhesive develops increasing bond strength with dwell time on both bonded faces.
What is the service temperature range for the SGT T2040GZD?
The foam carrier is rated for service from -40°F to 250°F. The acrylic adhesive service temperature is -4°F to 300°F.
Is the SGT T2040GZD suitable for regulated environments?
The SGT T2040GZD passes FMVSS-302 at .063" or thicker, as stated on the TDS. No additional compliance standards are specified on the manufacturer's TDS for this material.
How should the SGT T2040GZD be specified?
Specify grade (SGT T2040GZD), thickness, adhesive type (double-sided permanent acrylic I645), liner (55# Gold Glassine), compliance requirements (FMVSS-302 minimum thickness if applicable), dimensional tolerances, and finished format.
