Printashrink SPF3 (FLAT)
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Printashrink SPF3 (FLAT) is a flattened 3:1 ratio, 135°C MIL-SPEC and UL approved heatshrink polyolefin. It has excellent printability qualities and is ideal for identification in aerospace, military and defence applications. It is fire retardant and available in several colours and sizes up to 50.8mm ID and can be cut and printed as required.
This continuous 3:1 heatshrink polyolefin tube is supplied flat making it compatible with most printers. It is a UL/CSA approved sleeve which meets MIL-SPEC requirements, has a 135°C working temperature and excellent electrical, chemical and physical properties. It is available on bulk and smaller reels to suit any print set up and is used in in aerospace, military and defence, as well as other professional applications where a larger differential between nominal and shrunk diameter is required. We offer our full range of printing and cutting services on this high quality sleeve making it perfect for identification, branding and marking requirements.
Technical Data
- Shrink Ratio: 3:1
- Shrink Temperature: +85°C
- Operating Temperature: -40°C - +135°C
- Flame Retardant: Yes
- Colours:
- Yellow,
- White,
- Other colors available upon request
- Sizes: 2.4 - 50.8
- Packing: Reels, mini-reels, mini-packs, cut to length, kits, cut sleeves
- Print: Yes, full range of text and logos
- Approvals: SAE-AMS-DTL-23053/5 class 1&3, SAE AS81531:1531:1998 4.6.2, MIL-STD-202F 215J, UL224 125° 600V VW-1, CSA certified, RoHS compliant
- Applications / Industries:
| Properties | Typical Values | Test Methods |
|---|---|---|
| General | ||
| Operating Temperature | -40°C - + 135°C | |
| Minimum shrink temperature | 85°C | |
| Shrink temperature | 2:1 | |
| Physical | ||
| Tensile Strength | ≥14MPa | ASTM D 638 |
| Ultimate elongation | ≥ 400% | ASTM D 638 |
| Specific gravity | 1.34g/cm³ | ASTM D 792 |
| Longitudinal change | 0% - -2% | SAE-AMS-DTL-23053 |
| Secant Modulus | 65MPa | ASTM D 882 |
| Thermal | ||
| Flammability | VW-1 pass | UL224 |
| Heat shock (4hrs) | No dripping, cracking or flowing | SAE-AMS-DTL-23053 |
| Low temperature flexibility (4hrs @ -55°C) | No cracking | SAE-AMS-DTL-23053 |
| Heat ageing (168hrs) | Elongation ≥ 400% | SAE-AMS-DTL-23053 |
| Electrical | ||
| Dielectric strength | ≥ 37 kV/mm | UL 224 |
| Volume resistivity | 3.1 x 10¹⁴ Ω cm | ASTM D 876 |
| Voltage rating | 600V | UL 224 |
| Dielectric Voltage | withstands 2.5kV for 60s | UL 224 |
| Chemical | ||
| Copper corrosion | Pass | SAE-AMS-DTL-23053 |
| Copper stability | Pass | SAE-AMS-DTL-23053 |
| Fluid resistance | Gasoline, hydraulic fluid, lubricating oil, tensile 25-14MPa | SAE-AMS-DTL-23053 |
| Fungus resistance | Pass, no growth | ASTM G 21 |
Free Artwork service
As part of the fully comprehensive print process, we offer a free artwork service.
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Cable Identification Service
We offer a complete service based on our many years of experience and development in this highly specialised field.
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