# Heat shrink tubing CellPack CR 3.2/1.6 - 1/8" black, Model 427521

**URL:** https://aio.lv/en/product--cellpack-427521--12108941
**Data updated:** 2026-03-20 09:59 (EET)
**Category:** Electronics Accessories
**Manufacturer:** CellPack
**Manufacturer code:** 427521
**EAN:** 5907690129576
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 2.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cellpack-427521--12108941

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

CellPack heat shrink tubing CR 3.2/1.6 - 1/8" (model 427521) is a black insulating sleeve designed for electrical insulation, strain relief and protection of wire joints and connections. With a nominal 3.2 mm diameter reduced to 1.6 mm after shrinking, it suits cable repair, harnessing and sealing applications in electronics, automotive and general wiring tasks.

## Long description

CellPack heat shrink tubing CR 3.2/1.6 - 1/8" in black (model 427521) is a polyolefin insulating sleeve engineered for electrical insulation, mechanical protection and strain relief of wire joints and cable terminations. With a nominal diameter of 3.2 mm that reduces to approximately 1.6 mm after shrinking, this tubing is suitable for repairing damaged insulation, bundling small conductor sets and providing a moisture-resistant cover for soldered or crimped connections in electronics, automotive and general wiring tasks.
Advantages
The tubing provides reliable electrical insulation and improves mechanical durability of connections while occupying minimal space after shrinkage. Its polyolefin construction offers resistance to abrasion and common environmental factors encountered in everyday wiring. The black colour allows for discreet application and easy visual matching with existing harnesses.
Suitable for
 Repairing damaged cable insulation and restoring continuity of protective sleeving
 Protecting soldered joints and crimp connections from moisture and abrasion
 Bundling and identifying small wire harnesses in electronics and automotive systems
 Insulating exposed conductors in control panels, hobby electronics and household wiring
Key specifications
 Material: polyolefin heat shrink
 Nominal diameter before shrink: 3.2 mm
 Approximate diameter after shrink: 1.6 mm
 Shrink ratio: 2:1
 Colour: black
 Function: electrical insulation, mechanical protection, strain relief
How to use
Slide a suitable length of heat shrink tubing over the wire or joint before making the final connection. After soldering or crimping is complete, position the tubing so it fully covers the exposed area. Apply heat evenly using a controlled heat source such as a heat gun, hot air tool or appropriate soldering iron attachment until the tubing uniformly contracts to its final diameter and conforms to the underlying shape. Allow the tubing to cool to room temperature before handling.
Usage recommendations
For consistent results, use a regulated heat gun and avoid direct flame. Select tubing length with at least 5–10 mm overlap beyond the exposed conductor. Inspect for complete shrinkage and adhesion; repeat heating briefly if necessary to eliminate air gaps.

## FAQ

### How much does the Heat shrink tubing CellPack CR 3.2/1.6 - 1/8" 427521 cost, and is it available for purchase?

The price is 2.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 213 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CellPack products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CellPack service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12108941/67645042_large.webp