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Heat shrink tubing · 1 in ID - red - adhesive-lined 3:1 dual wall - Techspan 669987
SKU: TEC-669987
Adhesive-lined dual wall heat shrink tubing for insulating, sealing, and strain relief on larger cable joints and breakouts. This red 1 in ID tubing uses a 3:1 shrink ratio and is typically chosen where a moisture-resistant seal is needed around irregular connection shapes.
What this product is for
This adhesive-lined heat shrink tubing is used to insulate and seal cable splices, terminations, breakouts, and repaired jacket sections. The inner adhesive melts during recovery to help create a moisture-resistant seal around the connection.
Use for
- Electrical insulation on larger wire and cable connections
- Moisture-resistant sealing in panels, equipment, and field wiring repairs
- Strain relief and mechanical protection over splices and breakouts
- Colour identification where red heat shrink is specified
Avoid for
- Applications requiring a confirmed CSA or UL listing when project documents require that exact approval and it has not been separately verified
- Installations above the published temperature range
- Situations where recovered diameter is too small or expanded diameter is too large for the cable bundle
Best for
Best for electricians and maintenance teams needing a 1 in (25.4 mm) adhesive-lined tubing size for larger splices, cable transitions, or harness breakouts where sealing and insulation are both required.
Installed in
- Industrial control panels
- Commercial electrical equipment
- Service vehicles and maintenance stock
- Wire and cable repair work
Why this product exists
Standard thin-wall heat shrink insulates, but adhesive-lined dual wall tubing adds sealing. This product exists for jobs where electricians need heat shrink that can conform over uneven shapes and help block moisture entry at the same time.
Compared with similar products
Compared with single-wall heat shrink, this dual wall version adds an inner adhesive layer for better sealing. The 3:1 shrink ratio also gives more installation flexibility than lower-ratio tubing when covering connectors, lugs, or stepped cable diameters. Typical selection guidance: choose adhesive-lined tubing when the joint needs sealing, not just insulation. Actual performance depends on installation method, substrate condition, and heat application.
Specifications
- Brand: Techspan
- Manufacturer part number: 669987
- Product type: Dual wall adhesive-lined heat shrink tubing
- Colour: Red
- Expanded inside diameter: 1 in (25.4 mm)
- Recovered inside diameter: approximately 0.335 in (8.5 mm)
- Shrink ratio: 3:1
- Material: Polyolefin with adhesive inner wall
- Voltage rating: 600 V
- Operating temperature: -45 degC to 125 degC
- Typical package quantity: 3 pieces
- ColourRed
- MaterialPolyolefin with adhesive inner wall
- Typical Package Quantity3 pieces
- Operating Temperature-45 degC to 125 degC
- Voltage600 V
- Shrink Ratio0.125694444
- Expanded Inside Diameter1 in (25.4 mm)
- Recovered Inside Diameterapproximately 0.335 in (8.5 mm)
- BrandsTechspan
Aptico Supply Delivery
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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.
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Free daily delivery is available for larger contractor accounts.
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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?
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