Thermofit Tubing
Specification Control Drawing
No: MT2000
Rev: B
Date: May 14, 1999
Page: 1 of 2
Altera™
MT2000
Modified, Medical Grade, 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 140°C (284°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, Millimeters)
(W)
mm. in. mm. in. Minimum Maximum Nominal
1mm 1.0 .040 0.45 .018 .008 0.20 .012 0.30 .010 .25
2mm 2.0 .080 0.80 .032 .008 0.20 .012 0.30 .010 .25
3mm 3.0 .120 1.20 .048 .008 0.20 .012 0.30 .010 .25
6mm 6.0 .240 2.4 .096 .008 0.20 .012 0.30 .010 .25
10mm 10.0 .400 4.0 .160 .012 0.30 .016 0.41 .014 .36
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Thermofit Tubing
Specification Control Drawing
No: MT2000
Rev: B
Date: May 14, 1999
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 ASTM D 2671
* Concentricity as supplied Percent 60 minimum ASTM D 2671
Tensile Strength PSI (MPa) 3000 minimum (20.7) ASTM D 2671,
Ultimate Elongation Percent 200 minimum 2"/minute
Secant Modulus PSI (MPa) 5.0 x 104 minimum (344) ASTM D 2671
Heat Resistance
168 hours at 125°C (257 °F)
Followed by test for:
ASTM D 2671,
Ultimate Elongation Percent 200 minimum 2"/minute
ELECTRICAL
Dielectric Strength
Volts/mil
1000 minimum (39.36)
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 1000 minimum (39.36) ASTM D 2671
(volts/mm)
Tensile Strength PSI (MPa) 3000 minimum (20.7) 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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