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Heat-Shrink Tubing
  1. Home
  2. Industrial & Scientific
  3. Industrial Electrical
  4. Wiring & Connecting
  5. Heat-Shrink Tubing
  6. Cubefeller 3:1 Ratio…
cubefeller

Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation

Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹1,580₹2,190

You save ₹610 (28%)

Qty
Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation — Black / 19.1mm (3/4") - 4ft
Black / 19.1mm (3/4") - 4ft
₹1,580
₹2,190
In Stock
Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation — Red / 15mm (5/8") - 4ft
Red / 15mm (5/8") - 4ft
₹1,490
₹2,180
In Stock

Estimated doorstep delivery by 20 Nov - 22 Nov from USA

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Professional-Grade Insulation at a Competitive Price

About this item

Cubefeller 3:1 ratio heat shrink tubing is a durable, marine-grade insulation solution available in India through crowcrowcrow, with high abrasion resistance and waterproof sealing. Its 19.1mm diameter and 4ft length make it versatile for electrical and environmental sealing needs.

Designed with a double-wall structure and adhesive lining, this tubing melts during heating to create a tight, waterproof seal, protecting against moisture, fuel, and chemicals. Its high temperature resistance and UL/CSA certification ensure safety and reliability in demanding environments. Many Indian electricians and DIY enthusiasts trust Cubefeller for its toughness and long-lasting performance.

Imported directly from the USA, this kit offers a professional-grade insulation option for Indian wiring projects. It is easy to cut, slide, and heat with a heat gun, providing a quick, secure connection. Perfect for marine, automotive, and general electrical applications, it arrives in 11-13 days with all duties paid, ensuring hassle-free import.

Key Features

  • DUAL WALL TUBING — CUBEFELLER Heat Shrink Tubing adopts a double-wall design and adhesive lining. The outer wall provides extremely high abrasion resistance. While heating, the adhesive line will melt, and then it will be adsorbed on the surface of the object tightly, creating waterproof and long-lasting insulation.
  • 3:1 SHRINK RATIO — Heat shrink tubing with a 3:1 Shrink Ratio, which can shrink to 1/3 of the original diameter, forming a tighter seal and eliminating the problem of 2:1 tubing not shrinking tight enough. The shrinkage temperature is 70° to 125°.
  • INDUSTRIAL STRENGTH — Heat Shrink Tubing has good electrical insulation (up to 600 voltage), good tightness, and corrosion resistance, high temperature resistance. and it is also waterproof, anti-aging, tough, and not easy to break. It's also UL and CSA certified and RoHS compliant and contains no harmful chemicals to protect you and your family.
  • VERSATILE APPLICATIONS — CUBEFELLER waterproof shrink tubing can be used in marine and automotive wiring, model building, and DIY electrical wiring projects. The application areas are very diverse, such as electrical insulation/environmental sealing to protect against moisture, fuel and chemicals,protection of surfaces against abrasion, peeling and denting.
  • FAST & EASY USE — This kit includes 1pcs 4-feet long heat shrink tubing, which can meet your various needs. Just cut it to the length you need, slide it to the desired position, and then use a heat gun to heat it, so that the professional insulation connection is completed in a few seconds.
  • CUBEFELLER Heat Shrink Tubing, trusted by millions of electricians around the world.

Why choose this product

Formulated for Tough Environments

Cubefeller heat shrink tubing features a dual-wall design with adhesive lining, melting during heating to provide waterproof, chemical-resistant insulation. Its high temperature tolerance and UL/CSA certification ensure safety and durability in marine, automotive, and industrial wiring in India.

Ideal for Indian DIY & Professional Use

Trusted by millions of electricians worldwide, Cubefeller offers a reliable, easy-to-use solution for environmental sealing and insulation. Perfect for outdoor, marine, and automotive projects in India, with quick application and long-lasting protection.

How to use

  • Cut to Length — Use scissors or a knife to cut the tubing to your desired length, ensuring a snug fit over the joint or wire section.
  • Slide Over Connection — Place the tubing over the connection point, ensuring full coverage of the joint or terminal area.
  • Apply Heat — Use a heat gun or controlled flame to evenly heat the tubing until it shrinks tightly, creating a waterproof seal.

Example scenarios

Typical situations where Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

An electrician in Mumbai needs waterproof insulation for marine wiring, facing monsoon humidity and salt exposure.

How this product helps

Cubefeller tubing's waterproof, high-temp resistant design ensures long-term sealing, saving ₹ and time, with reliable performance over months.

Technical specifications

Setup & usage

ApplicationMarine and automotive wiring, model building, DIY electrical projects, insulation, environmental sealing, abrasion resistance
Reapplication math4 ft lasts for multiple projects; cut to size, slide, heat for professional insulation
Shelf life after openingUnspecified; check manufacturer's date on packaging
ContraindicationsUse with proper heat source; avoid overheating
Allergens / irritantsContains no harmful chemicals

Warranty

CrowCrowCrow helps you bring this product to India. Any warranty is offered by cubefellerunder its own policy.

Read more

How we compare

FeatureCubefeller 3:1 RatioOthers
Diameter & Length19.1mm (3/4") diameter, 4ft length, imported from USACommon Indian tubing sizes vary; typically 10-20mm, shorter lengths, often locally sourced
Waterproof & SealMarine grade waterproof, adhesive-lined, UL & CSA certifiedMany Indian options lack marine-grade waterproofing or UL certification
Shrink Ratio3:1 ratio for tight seal, shrink to 1/3 diameterMost local tubing offers 2:1 ratio, less tight fit
Application & DurabilityHigh abrasion, chemical, high temperature resistance, long-lastingVaries; often less durable, not UL certified, less chemical resistant
Price & Certification₹1,580 with UL & CSA certificationPrices vary; certifications often absent, lower durability

Product details

SKUqze3828
GTIN0762736077069
BrandCubefeller
Size19.1mm (3/4") - 4ft
ColorBlack
MaterialPolyolefin
Country of OriginNot stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

About cubefeller

Cubefeller specializes in industrial insulation solutions, trusted worldwide for durable, high-quality heat shrink tubing and environmental sealing products.

Compliance & Legal

This is a dietary supplement; not intended to diagnose, treat, cure or prevent any disease.

Customer Reviews

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FAQ, See What Others Asked

What shrink ratio should I choose for marine and automotive wiring?
A 3:1 ratio shrinks to one-third of its original diameter, providing a tight seal over connectors and irregular surfaces. Ensure the pre-shrink diameter fits your wire or joint for optimal sealing.
What is the difference between dual-wall and single-wall heat shrink tubing?
Dual-wall tubing has an adhesive lining that melts during heating to create a waterproof, sealed connection, ideal for outdoor or marine environments. Single-wall offers basic insulation.
Can I use this tubing in India for outdoor wiring?
Yes, Cubefeller heat shrink tubing is designed for high durability, waterproof sealing, and high temperature resistance, making it suitable for outdoor and marine wiring in India.
How do I apply the heat shrink tubing?
Cut the tubing to your desired length, slide it over the wire or joint, then evenly heat with a heat gun until it shrinks tightly. Follow safety instructions for your heat source.
Is this product UL and CSA certified?
Yes, Cubefeller heat shrink tubing is UL and CSA certified, ensuring compliance with safety standards for electrical insulation and environmental sealing.
How long does shipping take to India?
All orders arrive in 11-13 days via ExpressBox tracked shipping, with duties and GST included for hassle-free import.

Frequently bought together

Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation

This item:

Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation

₹1,580

Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation

This item

Cubefeller 3:1 Ratio 19.1mm Black Heat Shrink Tubing | Marine Grade Waterproof Insulation

₹1,580

Total price:

₹4,520

You save ₹2,140 (32%) Extra

3 items selected

3 items

₹4,520

You save ₹2,140 (32%) Extra

Product Comparison

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Spec
Price
₹1,580
₹2,190
₹1,450
₹2,290
₹1,490
₹2,180
₹1,580
₹2,190
₹1,430
₹1,840
₹1,160
₹1,640
₹1,640
₹2,520
Brand NamecubefellercubefellercubefellercubefellerASHINERUlove Prsuxcell
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹1,580₹2,190

You Save ₹610

Estimated doorstep delivery by 20 Nov - 22 Nov from USA
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Your Order Journey: From Purchase to Doorstep

You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you
You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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₹4,740+ (3× the price)
₹1,580 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
11-13 days · live tracking
Grey market, no guarantee, no protection, no refund
Sourced from US retailers, India-verified, return available
Lost in transit = ₹0 back
Full protection included