Thermofit Tubing
Specification Control Drawing
No: MT5000
Rev: B
Date: October 30, 1996
Page: 1 of 2
Altera™
MT5000
Flexible, Modified Polyolefin,
Heat - Shrinkable Tubing
This specification covers the requirements for one type of single wall, electrical insulating, extruded tubing whose
diameter will reduce to a predetermined size upon application of heat in excess of 110°C (230°F).
The tubing is fabricated from modified polyolefin crosslinked by irradiation. It shall be homogenous and
essentially free from flaws, defects, pinholes, seams, cracks or inclusions.
The tubing is fabricated from materials which meet the requirements of U.S. Pharmacopeia Class VI Plastics.
Color shall be black or clear unless otherwise specified.
Table 1: Dimensions
As Supplied
Recovered
Size
Inside Diameter
Minimum (D)
Inside Diameter
Maximum (d)
Wall Thickness(Inches, Millimetres)
(W)
in.
mm. in. mm. Minimum Maximum Nominal
3/64 .046 1.17 .023 0.58 .013 0.33 .019 0.48 .016 0.40
1/16 .063 1.60 .031 0.79 .014 0.35 .020 0.50 .017 0.43
3/32 .093 2.36 .046 1.17 .017 0.43 .023 0.58 .020 0.50
1/8 .125 3.18 .062 1.58 .017 0.43 .023 0.58 .020 0.50
3/16 .187 4.75 .093 2.36 .017 0.43 .023 0.58 .020 0.50
1/4 .250 6.35 .125 3.18 .022 0.56 .028 0.71 .025 0.64
3/8 .375 9.53 .187 4.75 .022 0.56 .028 0.71 .025 0.64
1/2 .500 12.70 .250 6.35 .022 0.56 .028 0.71 .025 0.64
3/4 .750 19.05 .375 9.53 .027 0.69 .033 0.84 .030 0.76
1 1.000 25.40 .500 12.70 .030 0.76 .040 1.01 .035 0.88
1-1/2 1.500 38.10 .750 19.05 .034 0.86 .046 1.17 .040 1.01
2 2.000 50.80 1.000 25.40 .038 0.96 .052 1.32 .045 1.14
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Thermofit Tubing
Specification Control Drawing
No: MT5000
Rev: B
Date: October 30, 1996
Page: 2 of 2
Table 2: Properties
Property Unit Requirement Test Method
Physical
* Dimensions
Inches (mm)
In accordance with Table 1
* Longitudinal Change Percent +0, -10 maximum ASTM D 2671
* Concentricity as supplied Percent 70 minimum ASTM D 2671
* Tensile Strength PSI (MPa) 1800 minimum (12.4) ASTM D 2671,
* Ultimate Elongation Percent 200 minimum 20"/ minute
Secant Modulus PSI (MPa) 2.5 x 104 maximum (172) ASTM D 2671
Heat Resistance
168 hours at 125°C (257°F)
Followed by test for:
ASTM D 2671,
Ultimate Elongation Percent 100 minimum 20"/minute
Electrical
Dielectric Strength
Volts/mil
500 minimum (19.680)
ASTM D 2671
(volts/mm)
Dielectric Withstand
3000V, 60 Hz
sec
60 minimum
ASTM D 2671
Chemical
Fluid Resistance
24 hours at 23 ± 3°C (77 ± 5°F)
Isopropyl Alcohol
5% Saline Solution
Cidex**
Followed by tests for:
ASTM D 2671
Dielectric Strength Volts/mil 500 minimum (19,680) ASTM D 2671
(volts/mm)
Tensile Strength PSI (MPa) 1800 minimum (12.4) ASTM D 2671
Heavy Metals Analysis
Cadmium
Mercury
Lead
Bismuth
Antimony
ppm 1 maximum
(total of all metals)
USP XXII
Physicochemical
Tests-Plastics
(Note 1)
* Denotes lot acceptance test
**Trademark of Johnson & Johnson Company
Note 1: Sample preparation and extraction is per USP XXII. Metals analysis may be colorimetric as described
in USP XXII or by equivalent quantitative analytical method.
Raychem reserves the right to amend this specification at any time. Users should evaluate the suitability of the product for their application.
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Check with the web for latest revision.
