# Eventronic HST-400 Heat Shrink Tubing Kit, 3:1 Adhesive-Lined, 7 Sizes

Seven diameters from 3/32" to 3/4" make this adhesive-lined heat shrink kit useful for varied wiring repairs and DIY projects.

- [Original product page](https://www.ofertitastop.com/us/product/eventronic-hst-400-heat-shrink-tubing)
- [View offer](https://www.ofertitastop.com/us/visit/eventronic-hst-400-heat-shrink-tubing)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-11-06T03:08:04.571Z
- Brand: Eventronic
- Model: HST-400
- SKU: ofertitastop-us-167208
- Category: Hardware > Building Consumables
- Source store: amazon US
- Active deal: Yes
- Price: 11.67 USD
- Previous price: 13.99 USD
- Discount: 17%
- Rating: 4.7 / 5
- Reviews: 33999

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

Seven pre-shrink diameters, from 3/32" to 3/4", give this Eventronic kit options for protecting a range of wire and cable sizes.

Each piece has a dual-wall design: the outer layer resists abrasion, while the inner adhesive layer melts with heat to help seal around a connection.

For repair work that calls for several wire sizes, the 400-piece assortment keeps multiple diameters on hand. It suits marine and automotive wiring, electrical repairs, model building, and DIY projects.

## Fit and sizing

The tubing is offered in seven diameters, measured before shrinking, so choose a size that fits over the wire or connection and can contract around it. The 3:1 shrink ratio lets the tubing shrink to one-third of its original diameter, giving it flexibility across different connection sizes. The pieces are pre-cut, making them convenient for individual repair jobs rather than requiring a length to be measured and cut from a roll each time.

An assortment is useful when a project involves different wire gauges or repair points, a roll in one diameter may be a better match when the work consistently uses the same size. For example, during an automotive wiring repair, select the piece that fits over the connection, position it to cover the area, and apply heat so the tubing contracts and its inner adhesive activates.

## Benefits

The dual-wall construction serves two purposes in one sleeve. The outer wall helps protect against abrasion, while the heat-activated inner adhesive forms a seal around the connection and provides strain relief. This makes the tubing useful for wire insulation and for helping protect connections from moisture, fuel, and chemicals in the applications described by the manufacturer.

Buyers appreciate the range of sizes, the shrink behavior, and the tubing’s sealing and durability. Feedback on the adhesive is mixed, and some buyers would prefer longer pieces. The kit’s pre-cut format is suited to covering individual connections, while its assortment helps when repairs call for several diameters.

## Tech summary

- Type: Dual-wall adhesive-lined heat shrink tubing
- Quantity: 400 pieces
- Shrink ratio: 3:1
- Sizes: 3/32" to 3/4", in seven diameters
- Color: Black
- Format: Pre-cut pieces
- Applications: Marine and automotive wiring, electrical repairs, model building, and DIY projects

## What to clarify

**What does the 3:1 shrink ratio mean?** The tubing can shrink to one-third of its original diameter when heated, helping it fit closely around a connection.

**Are the listed diameters measured before or after shrinking?** They are the original, pre-shrink diameters. Choose based on the size needed to fit over the wire or connection before applying heat.

**What kinds of projects is this kit suited for?** It is intended for insulating and protecting wire connections in marine and automotive wiring, electrical repairs, model building, and other DIY projects.

## Final verdict

Eventronic HST-400 is a practical fit for repair kits and projects where wire connections vary in size. Its seven-diameter assortment, 3:1 shrink ratio, and adhesive-lined dual wall combine sizing flexibility with a protective covering for individual electrical connections.

## Images

![Eventronic HST-400 Heat Shrink Tubing Kit, 3:1 Adhesive-Lined, 7 Sizes — 1](https://www.ofertitastop.com/i/17lugUftLJEbQLUAKT6E8VTcdachTEoK0vEi2CTmD4JyCvdsf2tfWnwG1qiTBt0jzZzeoM9-W_uEVcTZZUdCEHRGGakvxMgvShD301Y-hSEhPMSzYvooSA.jpg)

![Eventronic HST-400 Heat Shrink Tubing Kit, 3:1 Adhesive-Lined, 7 Sizes — 2](https://www.ofertitastop.com/i/zFAmI3U48o6x8hRqJrRPCGza81OaGpUfm5-FsVM-CtofmtejFRCPDBoZgDYw9uAS-uv_K6e9Zoj7-2CFsC_oNIY-Zg8Ho14Ev0wslkIC83Ve_kQNPR3oew.jpg)

![Eventronic HST-400 Heat Shrink Tubing Kit, 3:1 Adhesive-Lined, 7 Sizes — 3](https://www.ofertitastop.com/i/zVz09dpwSKtIa97u42x0EA8BLeCpPqO3SajaME9FIsYNLfDiINQYqQjtsjh3A138J1ULyeFY7TAWgnINl8JGPKt5vSNDDolnJ-xxiFhNIt9t1ampGDP_Lw.jpg)

![Eventronic HST-400 Heat Shrink Tubing Kit, 3:1 Adhesive-Lined, 7 Sizes — 4](https://www.ofertitastop.com/i/2dZ_d0lB1tDW8dQIFONV1loiMLB6XqI-rj5VwNtIjy0VXDnQZ1aF787n_44s16cLxu8hVstoVwjREBnnZtK8GoiW_O9g6R8v_eQ-Pl6WVjepRQgqe5kcCA.jpg)

![Eventronic HST-400 Heat Shrink Tubing Kit, 3:1 Adhesive-Lined, 7 Sizes — 5](https://www.ofertitastop.com/i/attmJy81R4mmGX8ogdJkjSKd5txMu0hNWCTeMoboG3emgKBLLZM_UwHC2F7OIplV0nErh3nv3N0BJpgWB8BYK1-JGxkPmwqTBUPV2owsr3HWUOJGRHATuA.jpg)