Heat shrink tubing STP125

HEAT SHRINK SELF-EXTINGUISHING SLEEVE IN POLYOLEFIN SHRINKAGE 2 ÷ 1

The STP125 Series polyolefin heat-shrinkable sheath is a self-extinguishing sheath that has excellent physical and electrical properties. Ideal for general cladding, wiring and insulation, thanks to the simplicity with which it shrinks. This heat-shrinking sheath adapts very easily to the part to be covered. Packaging in coils. 

  • 2:1 shrinkage ratio: the sheath shrinks 2 times with respect to the initial diameter. 
  • Available diameters: from 1.2mm to 180.0mm. 
  • Operating temperature: -55°C to +125°C. 
  • Compliant with Standards: UL 224 VW-1, ISO37, ASTMD570, ISO1817 and ISO37 MIL-1-23053.

Approval: File 305771

download the technical data sheet

STP125 Heat Shrink Tubing

  • Material: Polyolefin
  • Shrinkage: 2:1
  • Scope: Electrical insulation, moisture protection, mechanical protection and cable identification.
  • Minimum shrinkage temperature: > +90°C
  • Min/max operating temperature: -55°C to +125°C
  • Self-extinguishing (except transparent sheath): according to UL 224 VW-1
  • Colors: Black – White – Red – Yellow Blue – Green – Transparent
  • Self-extinguishing: according to UL 224 VW-1
  • Tensile strength: 15 MPA according to ISO37
  • Tensile strength after aging (7 days): 12 MPA
  • Elongation at break: 450% according to ISO37
  • Elongation after heat aging test: 400% (168 hours at 158°C)
  • Thermal shock: no dripping, sliding or cracking (4 hours at 250°C) 
  • Water absorption: 0.2% according to ASTMD570
  • Fluid resistance: according to ISO1817, ISO37 MIL-1-23053
  • Dielectric strength: ≥ 15 KV/mm
  • Longitudinal variation: ±5%

Heat shrink indication

  1. To shrink the heat-shrinking sheath, use equipment made for this specific operation such as, for example, guns or hot air tunnels.
  2. Shrink the sheath starting at one end, the most critical side, and then proceed slowly to the opposite end. This method avoids the formation of air bubbles between the inner wall of the heat shrink sleeve and the object it covers.
  3. In the event that the object to be covered is made of metal or a good heat conductor, it is advisable to preheat the object to avoid “cold zones”, so as to allow a perfect and soft adaptation of the heat-shrinking sheath.
  4. In order to avoid overheating of the heat shrink sleeve, ensure regular heat distribution. Excessive overheating of the material during the shrinking process can cause bubbling, discoloration and in some cases even breakage of the heat shrink sheath.

Delivery Terms

The expected times for order fulfillment are indicated in our Order Confirmation. In urgent cases, by contacting our sales office at the phone number 0373/920659, the shipment of goods can be managed within 24 hours from the date of our order confirmation. For all products not managed in stock, the shipment of goods will be carried out according to the agreements with our sales office.

Delivery

The delivery of goods is ex our warehouse. At the customer's request, our company offers a "Free Domicile with Invoice Charge" service using a shipper contracted with us. For more information regarding delivery, please consult our General Supply Conditions.

Warranty

RTE warrants, during the warranty period, to repair or replace free of charge those parts that, due to poor material quality or workmanship defects, prove to be defective, but only if they have been used in accordance with the provisions in the "Instruction, Use, and Maintenance Manuals", excluding any other damage and liability for direct or indirect damages resulting from improper use.

For more information regarding delivery terms, delivery, and warranty, please consult our General Supply Conditions.

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