Intertape® – Electrical adhesive tapes Intertape® 4237
Intertape® 4237 is a glass filament polyester tape with acrylate adhesive.
High tensile strength glass filaments and conformable PET film coating with an aggressive adhesive for a variety of heavy duty insulating, banding and holding applications. 1.0 mil polyester film provides puncture, edge tear and abrasion resistance. Specially designed and intended for use in oil-filled transformers. Once thermoset, the acrylic adhesive offers superior resistance to chemicals, solvents and aging in addition to excellent dielectric strength and insulation resistance.
Application
Lead and saddle tie down, banding and bundling motor and transformer coils and coil covering.
Standards
UL-File-No.: E20780
CSA-File: LR94980
Exceeds as one of a very few products available the rigorous requirements of the ASTM D3455 „Test Method for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin“.
Delivery forms
- Width: from 2.5 mm in 0.1 mm increments
- Core diameter: 76 mm (3")
- Special widths on request
Color
Translucent
Glue
Acrylate
Adhesive
One-sided
Storage
12 months at room temperature. Adhesive tapes should be stored in a cool, dry place at approx. 20 °C and 50 - 60 % relative humidity. The storage period should not exceed 12 months.
Punched parts, bent & formed parts
We offer a wide range of punched and formed parts: Rolls, individual parts unsorted, sorted or stacked, adhesive on one or both sides, non-adhesive, with or without a grip tab.
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Technical data
| Property | Unit of measure | |
|---|---|---|
| Type/ Ordering information | Intertape® 4237 | |
| Standard colours | Translucent | |
| Backing | Polyester film glass filament reinforced | |
| Backing thickness | mm | 0.114 |
| Adhesive | Acrylate thermosetting | |
| Total thickness | mm | 0.180 |
| Elongation at break | % | 7 |
| Insulation resistance | MΩ | 10^6 |
| Electrolyt. corrosion value | Direct 1.0/A, 1 | |
| Thermal class | 155 °C (F) | |
| Dielectic strength | kV | 5 |
| Tensile strength | N/cm | 516 |
| Adhesiveness / Adhesion to steel | N/cm | 4.9 |
| UL FILE NO. | E20780 |