Just like heat shrink tubing, heat shrink end caps are perfect for situations that call for extra protection against abrasion, moisture, chemicals and corrosion. They’re most commonly used to insulate and seal off wire and splice terminations in automotive, electrical and networking applications. End caps are typically used in conjunction with heat shrink tubing… they take over where the tubing leaves off!

Heat shrink tubing is capable of sealing the entire surface of a cable or wire, but can’t be closed off at the end should that be necessary. That’s where heat shrink end caps come into play: they’re shaped to fit over the ends of wires and cables. Our heat shrink end caps are adhesive lined, so that when one is fitted over the end of a wire, it forms a bond with the heat shrink tubing that it’s overlapping. The seal is completed when heat is applied: the adhesive melts and becomes fully activated, and the end cap material shrinks to a snug and exact fit around the cable’s end.

Limiting Oxygen Index (LOI)
The ratio of how much oxygen - as compared to other gases - needs to be present in the air surrounding a particular material in order for that material to burn. The fact that Earth's normal atmospheric air contains around 21% oxygen is used a reference point when materials are classified into burn categories that are based on Limiting Oxygen Index. Substances that are combustible in air containing less than 21% oxygen are considered flammable, while those that burn in the range of anything greater than 21% but less than 28% are typically labeled "slow burning". Any material with an LOI that exceeds 28% is classified as self-extinguishing.

In the table below, you'll find a list of polymers commonly found in our heat shrink tubing and braided sleeving products, along with their LOIs and the burn categories each falls into.

ARTICLES - A place to find educational articles covering a wide range of topics, all categorized according to your areas of interest.Learn more

• Heat Shrink Tubing: How It Was Invented, and Why We Use It

HOW-TO CORNER -
How to use Heat Shrink Tubing
Terminate the ends of your Braided Sleeving with Heat Shrink
How do we measure Heat Shrink?

CATALOG - PDF
For your convenience, we have made our brochure and catalogs available online in PDF format. Downloading the PDF catalog will take you no more than 5 minutes, so you won’t have to wait days for the print catalog. PDF catalogs include links to our products: just click on the hyperlinked product headings, and you’ll be directed right to our website.
Office PDF Catalog 2 MB
Automotive PDF Catalog 2.6 MB
Aerospace/Aircraft PDF Catalog 2 MB
Utilities & Energy PDF Catalog 3.7 MB
Datacom/Telecom PDF Catalog 5.7 MB

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2:1 Heat Shrink Tubing Kit Price $19.99 2:1 Standard Wall From $0.34 per foot 2:1 Dual Wall Call for pricing It is designed for military and commercial, and for the consumer/OEM market requiring UL and/or Canadian Standards approval.	3:1 Standard Wall From $0.95 per foot 3:1 Adhesive From $1.17 per foot The over-expanded product configuration easily fits over the end of a connector and shrink down 33%.
4:1 Standard Wall From $2.75 per foot 4:1 Adhesive From $0.95 per foot Our 4:1 heat shrink tubing is used for jacket retrofitting or repair and electrical insulation of wire assemblies with oversize components or connectors.	Heat Shrink UV Reactive From $1.00 per foot It is available in a 2:1 shrink ratio and in Luminous, Neon Pink, Neon Yellow, Neon Green, Luminous Green, and Gold.
2:1 Neoprene Heat Shrink Tubing 2:1 Viton® Heat-shrinkable 2:1 Diesel Resistant Heat Shrink Tubing These heat shrink tubings are formulated for special types of situations where standard protection would not be enough.	Heat Shrink Tools/ Heat Guns From $29.99 We offer a range of options to shrink your tubing, from small torches to ovens.
Heat Shrink End Caps From $0.70 Secure the ends of the tubing with these caps available in black in all three sizes.	Conductive Heat Shrink Connectors From $4.70/foot They are entirely coated on their inner surface providing shielding around the joints being connected.
High Temperature (Fluoropolymer) Heat Shrink Tubing
Fluorinated Ethylene-Propylene (FEP) Heat Shrink Tubing From $2.55 per foot FEP is used in cases where temperatures are not as extreme, and very high shrink ratios are not necessary.	Polytetrafluoroethylene (PTFE) Heat Shrink Tubing From $4.14 per foot PTFE is widely used in military applications because of its high continuous use temperature and outstanding chemical resistance.
Polyvinylidene Fluoride (PVDF, Kynar®) Heat Shrink Tubing From $5.49 per 4 FT PVDF is used in applications where continuous operating temperatures are 150-175°C. It is used where outstanding abrasion and cut-through resistance are required.	PTFE/FEP Dual Wall Heat Shrink Tubing From $2.26 per FT Constructed with an outer layer of heat shrinkable PTFE and an inner layer of FEP, it is easy to apply & is designed to provide a tight, moisture-proof bond.