

FT 8327 12 PT Double Coated Tape
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Long Description
Avery Dennisonβ’ FT 8327 12 Pt Board is a 4.6 mil double-coated polyester tape engineered with a differential rubber adhesive system designed specifically for foam bonding applications. The construction features a foam bonding rubber adhesive on the laminating side and a high shear rubber adhesive on the mounting side, making it ideal for securing foams to low surface energy (LSE) materials such as polypropylene, polyethylene, and powder-coated surfaces. The tape is mounted on a heavy-duty 12-point poly-coated kraft board liner, offering superior handling, converting, and die-cutting performance.
This high-performance tape is widely used in the appliance, HVAC, automotive, and general industrial sectors, especially where strong bonding, dimensional stability, and temperature resistance are required. Its robust construction ensures effective performance even under demanding environmental conditions and high-stress applications.
Key Features
Double-Coated Construction
Designed with a differential rubber adhesive system to deliver optimal performance on varied substrates.
Multipurpose Rubber Adhesive (Laminating Side)
Provides excellent foam bonding performance, even with a wide range of open-cell and closed-cell foams.
High Shear Rubber Adhesive (Mounting Side)
Delivers strong adhesion to LSE materials with high temperature and stress resistance.
Polyester (PET) Film Carrier
Adds dimensional stability, high tensile strength, and smooth handling during converting or laminating processes.
12 Pt Poly-Coated Kraft Board Liner
Offers exceptional rigidity for easy manual handling, die-cutting, and lamination with precise registration.
Benefits
Excellent Foam Bonding Performance
Ensures a secure and reliable attachment between foam and various substrates.
Superior Conformability & Handling
Ideal for applications requiring easy lamination and positioning due to its stiff board liner.
High Heat Resistance
Suitable for use in environments with elevated temperatures, maintaining bond strength and shear resistance.
Enhanced Converting Efficiency
The heavy board liner supports clean die-cutting and slitting with minimal distortion or edge curl.
Two-Year Warranty
Ensures confidence in long-term shelf life and product stability under standard storage conditions.
Construction Details
| Component | Material |
|---|---|
| Liner | 12 pt Poly-Coated Kraft Board |
| Adhesive 1 (Liner Side) | High Shear Rubber Adhesive |
| Carrier | Polyester Film (PET) |
| Adhesive 2 (Unwind Side) | Foam Bonding Rubber Adhesive |
Physical Properties (Typical β ASTM D3652)
| Layer | Mils | mm | Microns (Β΅m) |
|---|---|---|---|
| Liner | 5.0 | 0.13 | 127 |
| Adhesive 1 (Liner Side) | 2.0 | 0.05 | 51 |
| Carrier | 0.5 | 0.01 | 13 |
| Adhesive 2 (Unwind Side) | 2.5 | 0.06 | 64 |
| Total without Liner | 5.0 | 0.13 | 128 |
| Total with Liner | 12.9 | 0.33 | 328 |
Performance Characteristics
Peel Adhesion (ASTM D3330 β 180Β°, 12 in/min @ Room Temp)
| Substrate | Side | Lbf/in | N/m |
|---|---|---|---|
| Stainless Steel | Liner Side | 7.0 | 1,233 |
| Unwind Side | 12.0 | 2,113 | |
| Polypropylene | Liner Side | 6.0 | 1,057 |
| Unwind Side | 8.0 | 1,409 |
Loop Tack (ASTM D6195 β 180Β°, 32 in/min)
| Substrate | Side | Lbf/in | N/m |
|---|---|---|---|
| Stainless Steel | Liner Side | 8.0 | 1,409 |
Static Shear (ASTM D3654 β 500 g, 1"Β² @ Room Temp)
Stainless Steel, Liner Side (24 hr dwell): > 24 hrs
(Indicates strong holding power over time under stress.)
Temperature Range
| Condition | Temperature |
|---|---|
| Minimum Application Temp | 50Β°F (10Β°C) |
| Minimum Service Temp | -40Β°F (-40Β°C) |
| Maximum Service Temp | 250Β°F (121Β°C) |
Application Techniques
Ensure surfaces are clean, dry, and free from oil, dust, and grease before application.
Apply firm, uniform pressure to optimize adhesive contact with the substrate.
Adhesive performance varies with substrate type, application temperature, dwell time, and pressure.
Storage & Shelf Life
Shelf Life: 2 years
Recommended Storage Conditions:
Temperature: 64β72Β°F (18β22Β°C)
Relative Humidity: 30β70%
Store away from direct sunlight and in original packaging