MIL-DTL-23053/4, UL E85381 - 600V - 110°C, VG 95343, VDE 0341

ATUM has an internal adhesive coating that, when heated, melts and flows to form a positive environmental barrier to prevent moisture penetration. Used to seal back-end connectors, wire splices, breakouts, cable jackets and electrical components.
| Temperature | |
| Operating range | -55°C to +110°C |
| Min. shrinking temperature | +80°C |
| Min. full recovery temperature | +110°C |
| Sizes in mm | |||||
| Part Number | Inside Diameter | Wall thickness | colour | ||
| 3 to 1 shrink ratio | As supplied | After heating | After heating +/- 5% | ||
| On reels | Pieces of 1.2 meter | ||||
| ATUM-3/1-0-SP | ATUM-3/1-0-STK | 3 | 1 | 1 | black |
| ATUM-6/2-0-SP | ATUM-6/2-0-STK | 6 | 2 | 1 | black |
| ATUM-9/3-0-SP | ATUM-9/3-0-STK | 9 | 3 | 1.4 | black |
| ATUM-12/4-0-SP | ATUM-12/4-0-STK | 12 | 4 | 1.78 | black |
| ATUM-19/6-0-SP | ATUM-19/6-0-STK | 19 | 6 | 2.25 | black |
| ATUM-24/8-0-SP | ATUM-24/8-0-STK | 24 | 8 | 2.54 | black |
| ATUM-40/13-0-SP | ATUM-40/13-0-STK | 40 | 13 | 2.54 | black |
| 4 to 1 Shrink ratio | |||||
| On reels | Pieces of 1.2 meter | ||||
| ATUM-4/1-0-SP | ATUM-4/1-0-STK | 4 | 1 | 1 | black |
| ATUM-8/2-0-SP | ATUM-8/2-0-STK | 8 | 2 | 1 | black |
| ATUM-12/3-0-SP | ATUM-12/3-0-STK | 12 | 3 | 1.4 | black |
| ATUM-16/4-0-SP | ATUM-16/4-0-STK | 16 | 4 | 1.78 | black |
| ATUM-24/6-0-SP | ATUM-24/6-0-STK | 24 | 6 | 2.25 | black |
| ATUM-32/8-0-SP | ATUM-32/8-0-STK | 32 | 8 | 2.54 | black |
| ATUM-52/13-0-SP | ATUM-52/13-0-STK | 52 | 13 | 2.54 | black |