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See Product Specifications
| Part Number: | 3M 1218 CIRCLE-3.500"-100 | 
| Category: | Tapes, Adhesives, Materials | 
| Subcategory: | Tape | 
| Manufacturer: | 3M (TC) | 
| Packaging: | Bulk | 
| Product Status: | Active | 
| Tape Type: | Insulating, High Temperature | 
| Adhesive: | Acrylic | 
| Backing, Carrier: | Polyimide | 
| Thickness: | 0.0030" (3.0 mils, 0.076mm) | 
| Thickness - Adhesive: | 0.0020" (2.0 mils, 0.051mm) | 
| Thickness - Backing, Carrier: | 0.0010" (1.0 mils, 0.025mm) | 
| Width: | 3.50" (88.90mm) 3 1/2" dia | 
| Length: | - | 
| Color: | Amber | 
| Usage: | - | 
| Temperature Range: | 356°F (180°C) Max |