カート
No Products in the Cart
Benefits and Uses of Heat Shrink Caps
Product Guide · Heat Shrink Cap · HSEC
Did you know about
Did you know about
heat shrink caps?
Conclusion: Heat shrink caps can be used for various purposes such as waterproofing, protection, oil/water leak prevention, corrosion prevention, and insulation.
This article introduces the features and benefits of heat shrink caps, as well as their use cases.
1. What are heat shrink caps?
Heat shrink caps are caps that shrink in size when heat is applied. While heat shrink tubing is hollow and cannot be used for sealing ends, heat shrink caps are molded with completely sealed ends, making them suitable for different applications than tubing.
There are three main manufacturing methods for heat shrink caps:
①
Extruding into a tube shape and then sealing the end later
②
Manufacturing by blow molding, expanding into a cap shapeUsed by our company — Offers high airtightness and protection.
High airtightness, insulation, and waterproofing
Our HSEC heat shrink caps are manufactured by blow molding and possess high airtightness, insulation, and waterproofing properties, making them widely used in various fields.
List of Heat Shrink Cap Applications
💧
Waterproofing
Hot melt melts to fill gaps, forming a complete waterproof seal
🛡️
Tip Protection
Can also be used for tip protection of non-electrical wiring such as metal pipes and frames
🛢️
Oil/Water Leak Prevention
Used as a temporary receptacle, placed over oil or water leak points
🔩
Corrosion Prevention
Acts as a corrosion prevention cover for metal products like bolts and nuts
⚡
Insulation
Used as a cover for closed-end terminals or as a tip insulation material in place of vinyl tape
Details of Each Application
USE2
Waterproofing
The inside of this cap is coated with hot melt (adhesive) that melts with heat. When heat is applied after placing it over the object to be covered, the hot melt also melts along with the cap's shrinkage, filling the gap between the object and the cap to form a complete waterproof seal.
It can be used for waterproofing purposes by attaching it to areas where moisture may be present, both outdoors and inside equipment.
USE3
Protection (Tip Capping)
Heat shrink caps can also be used for tip protection and capping of protrusions. They are used to protect the ends of objects other than electrical wiring, such as frames, metal pipes, and square timber.
Both the tubing and hot melt can be cleanly removed without leaving residue by cutting with a cutter knife after use.
USE4
Oil and Water Leak Prevention
Leveraging its waterproofing function, it can be used as a temporary receptacle for oil or water leaks by placing it over the end.
Oil leak prevention case study PDF (provided by Hokkaido Dietech Co., Ltd.) ›There is no specific data on pressure resistance. Please refrain from using it as a complete oil/water leak prevention measure.
USE5
Corrosion Prevention
Leveraging its waterproofing function and shape, it is also used for corrosion prevention of metal products. Specifically, it is often used by placing it over bolts and nuts.
USE6
Insulation
Polyolefin heat shrink caps also provide insulation. They can be used as covers for closed-end terminals or as tip protection and insulation material in place of vinyl tape.
Summary · Overview
Difference from tubing
Completely sealed end. Built-in hot melt adheres tightly to the covered object. Addresses applications that tubing cannot handle.
Manufacturing method
Blow molding (used by our company) achieves high airtightness and protection.
5 applications
Effective in a wide range of situations: waterproofing, tip protection, oil/water leak prevention, corrosion prevention, and insulation.
Even when heat shrink tubing is difficult to apply, heat shrink caps can be easily installed. Please also visit our product page.
For more details on Heat Shrink Caps (HSEC) and inquiries
We also welcome consultations regarding applications, sizes, and quantities.
