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Heat Shrink Tubing · 3/4 in ID x 6 in L · Adhesive-Lined Red Dual Wall · Techspan 669986
SKU: TEC-669986
Adhesive-lined dual wall heat shrink tubing in red, sized 3/4 in ID x 6 in L (19 mm x 152 mm), supplied in a 6-piece pack. Commonly used to seal and insulate splices, terminals, and cable repairs where moisture resistance and strain relief are needed.
What this product is for
This adhesive-lined dual wall heat shrink tubing is used to insulate, seal, and support electrical connections. The 3/4 in inside diameter and 6 in cut length make it suitable for larger splices, cable breakouts, and repair work where a tighter environmental seal is needed after shrinking.
Use for
Use for wire and cable splices, terminal insulation, harness repairs, automotive wiring, equipment wiring, and other electrical connections exposed to moisture, abrasion, or vibration. The red colour can also help with circuit identification where colour coding is required.
Avoid for
Avoid using it as a substitute for a listed connector, mechanical protection where conduit or loom is required, or on assemblies that exceed the tubing's temperature and shrink limits. Do not select it by colour alone; confirm recovered size and fit over the connection before heating.
Best for
Best for electricians, fleet maintenance, heavy equipment service, trailer wiring, and panel or control wiring repairs where adhesive-lined tubing is preferred over thin-wall non-adhesive tubing. A typical buying check is to confirm the tubing will slide over the largest point before shrinking and still recover tightly over the cable or splice. Actual fit depends on connector shape, insulation thickness, and installation method.
Installed in
Installed in automotive harnesses, machinery wiring, construction equipment, service bodies, trailers, marine-adjacent service work, and general electrical maintenance applications. Commonly shrunk with a heat gun for more controlled installation.
Why this product exists
Dual wall adhesive-lined tubing combines outer insulation with an inner meltable adhesive layer to help seal out moisture and support the connection. It is used when standard thin-wall heat shrink does not provide enough sealing or strain relief for the job.
Compared with similar products
Compared with standard non-adhesive heat shrink, this dual wall style provides better sealing around irregular shapes and connection points. Compared with longer reel lengths, these 6 in precut pieces reduce waste for service trucks, repair kits, and small-batch maintenance work. Based on Techspan catalogue references, this part is part of the red adhesive-lined 3:1 heat shrink range.
Specifications
- Manufacturer: Techspan
- Manufacturer part number: 669986
- Product type: Dual wall adhesive-lined heat shrink tubing
- Colour: Red
- Nominal inside diameter: 3/4 in (19 mm)
- Length: 6 in (152 mm)
- Pack quantity: 6 pieces
- Shrink ratio: 3:1
- Category: Wire management
- ColourRed
- Pack Quantity6 pieces
- CategoryWire management
- Length6 in (152 mm)
- Shrink Ratio0.125694444
- Nominal Inside Diameter3/4 in (19 mm)
- BrandsTechspan
Aptico Supply Delivery
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Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.
Delivery Built Around Electrical Contractors
Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
Free Daily Delivery
Free daily delivery is available for larger contractor accounts.
- Order by 9:00 AM for morning delivery
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Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
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- Flesherton pickup available
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See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.
Delivery Questions
Do you offer free delivery?
Yes, free delivery is available for qualifying contractor accounts and selected local delivery routes.
Can I pick up my order?
Yes, pickup is available from our Elmira and Flesherton locations.
Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
Can you deliver to jobsites?
Yes, jobsite delivery may be available depending on the order size, location, and delivery schedule.
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