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#SM284 – High Temperature Fully Flame Retardant 4:1 Polyolefin Heat Shrinkable Tubing


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Daburn Catalog #:


SM284 Specification Sheet PDF

4:1 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)
(T)

 Wall Thickness Adhesive Wall (Nominal)
(t)

 In.

mm

In.

mm

 In.

 mm

In.

 mm

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. 



Specification/Test Values

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




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