Heat Shrink Tubing · 1/2 in x 4 ft · 2:1 flexible polyolefin red · Sumitomo 1/2RED4FT
Flexible red heat shrink tubing for insulating, identifying, and bundling conductors. This 1/2 in x 4 ft stick uses a typical 2:1 shrink ratio and is commonly used where a 1/4 in recovered diameter is suitable for wire terminations, splices, and harness work.
What this product is for
This red heat shrink tubing is used to insulate, protect, and identify wires, splices, and terminations in control panels, equipment wiring, vehicle electrical work, and general electrical maintenance.
Use for
Use for colour identification, light abrasion protection, strain relief at terminations, and general-purpose electrical insulation. It is suitable where a flexible polyolefin tube with a typical 2:1 shrink ratio is required.
Avoid for
Avoid using it where adhesive-lined environmental sealing is required, or where a higher shrink ratio is needed to recover over large connector transitions. Do not use it as a substitute for mechanical protection in exposed impact areas.
Best for
Best for electricians, panel builders, and maintenance teams who need a standard 4 ft (1.22 m) length of red heat shrink for wire marking, insulation repair, and harness finishing.
Installed in
Commonly installed in panels, machinery, control cabinets, automotive wiring, marine electrical systems, and low-voltage equipment assemblies.
Why this product exists
It provides a simple way to add electrical insulation and colour coding while reducing exposed conductor risk at joints and terminations. Flexible heat shrink is commonly chosen where installers need a tighter, cleaner finish than tape alone.
Compared with similar products
Compared with adhesive-lined heat shrink, this single-wall tubing is better for general insulation and identification rather than moisture sealing. Compared with higher-ratio tubing, 2:1 heat shrink is typically selected when conductor and termination sizes are more consistent. Actual performance depends on installation conditions, substrate size, and shrink method.
Specifications
- Product type: Heat shrink tubing
- Colour: Red
- Nominal supplied size: 1/2 in (12.7 to 13.2 mm class)
- Length: 4 ft (1.22 m)
- Shrink ratio: 2:1 typical product family rating
- Recovered inside diameter: approximately 1/4 in (6.35 to 6.4 mm)
- Material: Flexible flame-retarded polyolefin
- Minimum shrink temperature: 90 deg C
- Continuous operating temperature: -55 deg C to 135 deg C
- Approvals for product family: UL, CSA, SAE listings on Sumitube B2 series
- MaterialFlexible flame-retarded polyolefin
- ColourRed
- Length4 ft (1.22 m)
- Shrink Ratio2:1 typical product family rating
- Recovered Inside Diameterapproximately 1/4 in (6.35 to 6.4 mm)
- Minimum Shrink Temperature90 deg C
- BrandsWhite Label
- Stock in Elmira7
Aptico Supply Delivery
Fast Electrical Supply Delivery Across Ontario
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
- Order by 2:00 PM for afternoon delivery
- Available in qualifying local delivery areas
Free Weekly Delivery
Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
- Order by 11:00 AM on the route day
Pickup Options
Pickup is available from our Ontario locations for customers who prefer to collect their order directly.
- Elmira pickup available
- Flesherton pickup available
- Call ahead for large or special-order items
Local Delivery Areas
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.
Need Electrical Supplies Delivered?
Contact Aptico Supply to confirm your delivery options, pickup availability, or contractor account eligibility.
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