Helixal manufactures professional heat shrink tubing in 2:1 and 3:1 dual-wall adhesive-lined ratios. Flame-retardant polyolefin, 600V rated, UL Recognized and RoHS compliant. Ships fast across the USA and Canada.
Helixal heat shrink tubing in two professional ratios — 2:1 standard polyolefin for electrical insulation, 3:1 dual-wall adhesive-lined for waterproof marine and automotive connections.
Helixal heat shrink tubing — 2:1 standard & 3:1 dual-wall adhesive-lined. 13 sizes, 3 roll lengths.
39 SKUs · in stock · ships in 24hLarge Rolls — 20–60 ft
Large Rolls — up to 120 ft
10 ft per Size
Shop by Size
Helixal heat shrink tubing — 2:1 standard and 3:1 dual-wall adhesive-lined. 13 sizes from 3/32" to 2". Select a product line below to find your exact size.
All products ship from the USA & Canada — secure checkout, ships in 24h
Browse Full Catalogue →Self-extinguishing per UL-224. Won't propagate flame down the run when something arcs — the spec every marine and automotive installer needs.
Spec-sheet voltage matches lab-test voltage. We dielectric-test by lot, not by year. The same 600V whether you buy direct or OEM bulk.
Inner thermoplastic adhesive flows under heat and bonds to insulation, creating a 360° waterproof seal. Essential for bilge wiring, solar runs, and outdoor joints.
Same black, every spool, every lot. Tracked and documented. Available in 9 colors for OEM and custom-label programs.
Rated for continuous high-temp service. Starts shrinking at 100°C — no need to overheat and risk charring surrounding insulation.
What Professionals Say
Shrink tube is good quality , price & delivery.
Great heat shrink tube. LOL, for a long time i piece together sections of heat shrink for very long wires. LOL, well now i can cover feet of wire , as long as i need it to be. LOL, i work on motorcycles and need this tubing very long sometimes..
Mark L.
July 2026
Love it!!!
Great buy i recommend this heat shrink to the entire world!! Lol. Never mind the dirt in the pic lol look at the connector. its covered extremely well and you can see the adhesive on top of it!! Buy this asap! I love it!
Reinaldo Almodovar
July 2026
Everything is great
Everything was great.
Paul Hall
July 2026
Waterproof fit
Great product, work right the first time everytime!
shannon
July 2026
Good Value
Works as intended. Good shrink ratio. Used with students, no issues.
Brett L Gimer
July 2026
Wiring
it does what is supposed to do
kevin l.
July 2026
Best price if you need heat shrink
Works good and a great price
T.McKinney
July 2026
Excellent Product
This was a great product that did everything that the 3:1 ratio indicated. Highly recommended.
Louis Coursey
July 2026
Great
It's exactly as described. It's fairly heavy duty. Worked great for my project I needed it for and I certainly have left overs.
Robert Wheeler
July 2026
How dual-wall construction creates a watertight bond, when to choose it over standard heat shrink, correct shrink ratios, and step-by-step installation.
Read Guide →Buyer's GuideRanked and reviewed: 3M, TE Connectivity, Wirefy, HELIXAL, and more. Specs, certifications, and which brand fits your application.
Read Guide →MarineDual-wall adhesive-lined is the only seal that survives saltwater, vibration, and corrosion. Size chart, application guide, and install steps for boat wiring.
Read Guide →Volume pricing, custom-print labels, private label, and cut-to-length OEM kits. Available across the USA and Canada. We reply within one business day.
Fast-track on WhatsApp
