FT Y6663 Scrim Reinforced Packaging Tape
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Description
Avery Dennisonโข FT Y6663 is a high-performance double-coated scrim tape featuring a hot melt rubber adhesive on both sides of a polyester scrim carrier. Designed specifically for bonding to foamed rubbers and plastics, it excels in gasketing and sealing applications where strong initial tack, durability, and flexibility are essential.
This product incorporates a high coating weight adhesive for maximum surface wet-out and anchorage to difficult or uneven substrates. The polyester scrim reinforcement provides mechanical strength and dimensional stability while maintaining conformability. It is ideal for EPDM profiles, weather seals, gaskets, and other industrial or domestic sealing applications where long-term adhesion and resistance to volatile materials are required.
FT Y6663 is supplied with a Havana (yellow/brown) glassine release liner that ensures easy converting, kiss die-cutting, and smooth application.
Key Features
Double-coated scrim tape with hot melt rubber adhesive
High coat-weight adhesive designed for strong bonding
Polyester scrim (8x2) carrier for excellent reinforcement
Extremely high initial tack for fast and secure bonds
Easy release Havana glassine liner
Excellent water-jet and die-cutting characteristics
Product Benefits
Strong adhesion to foamed rubber, plastics, and uneven surfaces
Performs well in both industrial and domestic gasketing applications
Withstands volatile components in foamed rubbers and plastics
Maintains a balance of flexibility and structural strength
Provides long-term bond performance in medium-temperature environments
Suitable for automated converting and manual application
Typical Applications
Bonding EPDM and other foamed rubber profiles
Automotive gaskets, weather stripping, and sealants
Appliance seals and insulation bonding
HVAC foam panel attachment
Construction joint sealing and foam bonding
Vibration damping materials and acoustic insulation
Construction Overview
| Component | Description |
|---|---|
| Liner | Havana (yellow/brown) glassine |
| Adhesive 1 | Hot melt rubber |
| Carrier | Polyester scrim (8x2 weave) |
| Adhesive 2 | Hot melt rubber |
Technical Specifications
Thickness (ASTM D3652)
| Component | US Mils | mm | Micron (ยตm) |
|---|---|---|---|
| Liner | 2.95 | 0.075 | 75 |
| Carrier & Adhesive | 8.66 | 0.220 | 220 |
| Total Caliper | 11.61 | 0.295 | 295 |
Adhesion Performance
Peel Adhesion (ASTM D3330, 180ยฐ @ 300 mm/min)
| Substrate | 20 min dwell | 24 hr dwell |
|---|---|---|
| Stainless Steel | 14 lbf/in (2500 N/m) | 15 lbf/in (2600 N/m) |
| Polypropylene | 11 lbf/in (2000 N/m) | 12 lbf/in (2100 N/m) |
Loop Tack (ASTM D6195)
| Substrate | Initial |
|---|---|
| Stainless Steel | 14 lbf/in (2400 N/m) |
Static Shear (ASTM D3654)
| Test Conditions | Min to Fail |
|---|---|
| Foil, 1" sq, 1000 g @ Room Temp | > 900 minutes |
Temperature Resistance
| Condition | ยฐF | ยฐC |
|---|---|---|
| Minimum Application Temperature | 50ยฐF | 10ยฐC |
| Max Continuous Operating Temperature | 149ยฐF | 65ยฐC |
| Max Intermittent Operating Temperature | 158ยฐF | 70ยฐC |
Application Guidelines
Ensure surfaces are clean, dry, and free of dust, grease, and oil
Apply firm pressure to ensure full adhesive contact
Best performance achieved with adequate time, pressure, and temperature
Suitable for manual or automated application systems
Storage & Shelf Life
Shelf Life: 2 years from date of manufacture
Recommended Storage Conditions:
Temperature: 64โ72ยฐF (18โ22ยฐC)
Relative Humidity: 30โ70%
Store in original packaging, out of direct sunlight
