Description
DBSM284
SM284 Specification Sheet PDF4:1 Shrink Ratio
Semi-Rigid
Dual-Wall
Polyolefin Tubing
Extended Temperature Range
Description:
Daburn SM284 is a fully flame retardant, semi-rigid, high shrink ratio, adhesive lined heat shrinkable polyolefin tubing. Both jacket and adhesive lining (which flows when heated) are flame retardant. It is designed for insulation and encapsulation of wire splicing and used to seal and protect a wide variety of electrical applications, including wire splices, breakouts, and connectors-to-cable transitions.
Features- Shrink ratio: 75% or more in the radial direction, 10% or less in the axial direction
- Minimum shrink temperature 130°C/266°F
- Continuous operating temperature: - 55°C (-67°F) to 150°C (302°F)
- Fully Flame-Retardant including Jacket and Adhesive
- Excellent electrical properties
- High resistance to abrasion, chemicals, and oils
- To UL 224 Standard
- RoHS Compliant
Daburn Item Number |
Size |
Printed | Expanded | Recovered | ||||||
Internal Diameter (min.) (D) | Internal Diameter (max.) (d) | Total Wall Thickness (Nominal) | ||||||||
mm | In. | mm | In. | |||||||
SM284-15/64 | 6 mm (No. 0) | FDW-0 | 0.236 | 6.3 | 0.050 | 1.27 | 0.047 | 1.20 | 0.022 | 0.56 |
SM284-5/16 | 8 mm (No. 1) | FDW-1 | 0.315 | 8.2 | 0.065 | 1.65 | 0.060 | 1.52 | 0.030 | 0.76 |
SM284-7/16 | 11 mm (No. 2) | FDW-2 | 0.433 | 11.3 | 0.090 | 2.29 | 0.075 | 1.91 | 0.040 | 1.02 |
SM284-1/2 | 13 mm (No. 3) | FDW-3 | 0.511 | 12.1 | 0.100 | 2.54 | 0.085 | 2.15 | 0.043 | 1.10 |
SM284-11/16 | 18 mm (No. 4) | FDW-4 | 0.708 | 18.1 | 0.175 | 4.45 | 0.095 | 2.41 | 0.054 | 1.30 |
Standard Color: Black. Please call for other colors.
Sizes 15/64 & 5/16 sold on spools.
Sizes 7/16, 1/2, 11/16 sold in 4 foot lengths.
Property | Test Method | Value | ||
Physical | Unaged | Tensile strength | ASTM D638 | Min. 2,000 psi |
Elongation | Min. 200% | |||
Aged | Tensile strength | ASTM D638 | Min. 1,400 psi | |
Elongation | Min. 100% | |||
Specific Gravity | ASTM D792 | Max. 1.33 | ||
Concentricity | ASTM D2671 | Min. 6 % | ||
Heat shock | 250°C /4 hrs. | No cracks, flowing or dripping | ||
Cold bend | ASTM D746 | No cracking | ||
Secant Modulus | ASTM D882 | Max. 25,000 psi | ||
Electrical | Dielectric strength | ASTM D2671 | Min. 500 Volts/Mil. | |
Volume resistivity | ASTM D876 | Min. 1 x 1014W - cm | ||
Chemical | Copper corrosion | 150°C/16 hrs. | No corrosion | |
Fungus resistance | ASTM G21 | No growth | ||
Flammability | ASTM D2671 | Pass Jacket & Adhesive | ||
