3:1 recovery accommodates wider diameter transitions than standard 2:1 tubing
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SLEEVANTA product family reference
HS-DW3Adhesive-Lined Dual-Wall Heat-Shrink Tubing
A 3:1 dual-wall tubing family combining a polyolefin outer jacket with a heat-activated adhesive inner layer for insulation, strain relief and moisture-resistant sealing around suitable cable joints and terminations.
ILLUSTRATIVE SECTION
3:1Polyolefin outer layer + hot-melt adhesive
ConstructionPolyolefin outer layer + hot-melt adhesive
Shrink ratio3:1
Operating rangeConfirm for quoted model
Reviewed nominal sizes6.4, 12.7, 25.4 mm benchmarks
Commercial reference / 30 July 2026
Size and roll-length starting points.
| Nominal size in reference | Metres per roll | Quantity basis |
|---|---|---|
| 6.4 mm | 100 m | One roll per size / colour was the historical MOQ |
| 12.7 mm | 50 m | One roll per size / colour was the historical MOQ |
| 25.4 mm | 25 m | One roll per size / colour was the historical MOQ |
These nominal sizes are not guaranteed minimum expanded or maximum recovered inside diameters. Ask for the dimensional table and recovered wall thickness of the exact quoted model before selecting fit.
SP-Z is a separately reviewed 3:1 technical sheet with a 2.4–125 mm range and −45°C to +125°C operating reference. The price-list product's exact manufacturer and model must be identified before relying on this sheet.
Current availability, sample charges, international freight, cut lengths and lead time require supplier confirmation. No stock or certification guarantee is made by this table.
Download the historical size and packing reference (CSV)Why this family
A practical construction for a defined job.
Final size, color, packaging, performance and document status are confirmed in the quotation for the proposed manufacturer's model.
Meltable adhesive helps fill gaps around suitable joints and terminations
Combines electrical insulation with strain relief and mechanical reinforcement
Reviewed commercial reference covers black and colour / clear in selected nominal sizes
Representative sourced range
Technical data for initial selection.
Values below describe the representative source range currently reviewed. They are not blanket specifications for every possible size, color or manufacturer's model.
Selection note
Sealing performance depends on the selected model, substrate, surface preparation and installation. No waterproof or IP rating is implied without application-specific evidence.
- Construction
- Polyolefin + hot-melt adhesive
- Nominal shrink ratio
- 3:1
- Separate technical reference
- SP-Z sheet: Ø2.4–125 mm; −45°C to +125°C. Quoted model identity must be confirmed before using these limits.
- Historical nominal size benchmarks
- 6.4 mm, 12.7 mm and 25.4 mm; supplier reference reviewed 30 July 2026
- Colour categories
- Black, colour and clear
- Standard roll benchmarks
- 25–100 m depending on size
- Historical MOQ benchmark
- One roll per size / colour; confirm current terms
- Sample benchmark
- Approx. 1 m for selected standard items within China
- Cut lengths
- Available; cutting basis and price confirmed in the quotation
- Compliance
- Verify exact model and document scope when mandatory
How to specify
Send what you know.
A current part number, drawing or application photo is helpful, but it is not required to start a model match.
- 01
Largest component diameter before shrinking
- 02
Smallest cable or substrate diameter after shrinking
- 03
Required recovered wall thickness, if specified
- 04
Cable-jacket or substrate material for adhesive compatibility
- 05
Operating environment, color, length and packaging
- 06
Quantity, delivery country and mandatory documents
Documentation
Documents for your exact tubing requirement.
Send your current manufacturer part number or drawing, required size, colour and quantity. Include mandatory electrical, temperature, flame or material-compliance requirements.
Technical data and dimensional tables are available for the representative source range. Reports may cover only an identified sample, material, size or color. UL recognition, flame performance, RoHS/REACH status and CE applicability are checked separately for the exact quoted model.
- Manufacturer name and complete model or order code identified in the quotation
- Expanded and recovered dimensions, recovered wall thickness and supply format matched to the item
- Original document reference and its model, material, size and colour scope checked when requested
- MOQ, sample charges, lead-time trigger and quotation validity stated
A recognition record or sample test may cover selected materials, sizes or colours. It does not establish coverage for every product in a supplier's catalogue.
For HS-DW3, include the cable-jacket or substrate material and sealing environment. No waterproof or IP rating is implied.
Request model and document reviewSelection help
Check the application before choosing a size.
How to choose heat-shrink tubing size
Use pass-over diameter, recovered diameter and the exact model's tolerances to shortlist heat-shrink tubing for a cable, splice or connector.
Read the guideSingle-wall vs adhesive-lined heat-shrink tubing
Compare single-wall insulation with adhesive-lined dual-wall tubing for cable joints, connector exits and moisture-resistant sealing.
Read the guide2:1 vs 3:1 heat-shrink tubing: what changes?
Understand shrink ratio, diameter transitions and why a higher recovery ratio is not a substitute for an exact size and wall-thickness check.
Read the guideHeat-shrink tubing RFQ and document checklist
What to include in a heat-shrink tubing enquiry and what to verify in a supplier-backed quotation before sample approval or an order.
Read the guideEmail enquiry
Enquire about HS-DW3
You can start with a few dimensions. Mark unknowns, add a drawing if available and email jeremy@sleevanta.com.
Edit the template in your email app before sending. Copying or opening a draft does not send an enquiry.