Due to it's ultra high tensile strength, Advanced Polymers polyester heat shrink tubing has the highest burst pressure of any known unreinforced tubing.

Miscellaneous

Thermal Conductivity of PET:	6.5 x 10^-4	(CAL/CM)°C x S
Moisture Absorption:	less than 0.8	%
(Immersion for 24 hrs @ 23°C)
Specific Gravity¹:	1.37
Refractive Index¹:	1.63
Permeability¹
Carbon Dioxide @ 25°C:	16	cc/(100in²)(24hrs)(atm/mil)
Hydrogen @ 25°C:	100	cc/(100 in²)(24hrs)(atm/mil)
Nitrogen @ 25°C:	1	cc/(100 in²)(24hrs)(atm/mil)
Oxygen @ 25°C:	6	cc/(100 in²)(24hrs)(atm/mil)
Water @ 37.8°C (100% R.H.):	2.0	g/(100 in²)(24hrs)/mil
Notes:
1. After shrinkage at 150°C

Heat Shrink Tubing - Technical Information Other Properties (for Clear Polyester Heat Shrink Tubing)

Tensile Strength (Up to 50,000 psi or more.)

Burst Pressure

Miscellaneous

Heat Shrink Tubing - Technical Information
Other Properties (for Clear Polyester Heat Shrink Tubing)