ABOUT OUR TUBING
INSULTAB EXTRUDES POLYMERS to manufacture both shrinkable and non-shrinkable tubular products.
INSULTAB CROSS-LINKS EXTRUDED TUBING to enhance its performance. Radiation cross-linking imparts a permanent memory of original diameter size and converts the tubing’s compound from a thermoplastic (meltable) material to a thermoset (non-meltable) material. This process significantly improves the tubing’s physical properties: improved resistance to heat, flame and mechanical abrasion and extends the storage shelf–life of the tubing.
|
WE ARE THE RECOGNIZED EXPERTS
AT EXPANDING LARGE DIAMETERS
|
INSULTAB EXPANDS TUBING from one to three times the original extruded Inside Diameter (I.D.) size. During this process, as the diameter of the tubing is expanded, its wall thickness is reduced.
Heat shrinkable tubing is sold in its Expanded I.D. (Inside Diameter). Applying heat will activate the tubing’s ‘memory’ and cause the expanded tubing to ‘recover’or shrink down. When fully recovered, the tubing will shrink down to the Recovered I.D.
- Tubing with a 2:1 shrink ratio will shrink down approximately 50%.
- Tubing with a 3:1 shrink ratio will shrink down approximately 67%.
As the tubing recovers, the thinner expanded tubing wall will thicken. If allowed to fully recover, the tubing wall will thicken to the ‘Total Recovered Wall Thickness Nominal’. If the tubing does not fully recover, the wall thickness will be less than the nominal recovered wall thickness. The thickness of the recovered wall will be proportional to the degree of recovery.
Longitudinal shrinkage, a small reduction in length, will also occur during the shrinking process.
Heat shrinkable tubing is sold on spools (reels) or in 'cut lengths'.
