Seachoice 3-To-1 Heat Shrink Tubing With Sealant
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Seachoice 3-To-1 Heat Shrink Tubing With Sealant is a marine-grade, flexible polyolefin heat-shrink tubing with an adhesive liner designed to help seal out moisture and protect wire connections.
Key Features
- 3:1 shrink ratio with adhesive liner
- Flame retardant
- Once installed, provides a complete environmental seal to help prevent corrosion, enhance insulation, and improve abrasion resistance
- Operating temperature range: -55°C to 110°C
Intended Use
- Marine electrical wiring connections
- Cable splices and insulation/strain relief applications
- Weather-sealed terminations for corrosion-prone connections
Product Details
- Seachoice 3-To-1 Heat Shrink Tubing With Sealant
- Tube construction: marine grade, flexible polyolefin heat shrinkable tubing (with adhesive liner)
- Shrink ratio: 3:1
- Flame retardant
- Environmental performance: complete environmental seal to help prevent corrosion, enhance insulation, and improve abrasion resistance
- Operating temperature: -55°C to 110°C
- SKU/Model: 50-61521
- Variant info: Default Title
Parts Desk Insights
Best Use Case: Best for finishing marine wiring work where you need a sealed, insulated, abrasion-resistant covering over exposed conductor/termination areas.
Common Issues: For best results, ensure the tubing length and starting diameter match the connection so the adhesive-lined seal fully forms when heat is applied. Inspect after installation to confirm the liner has flowed/formed a continuous seal and that there are no gaps along the connection.
Related Products & Accessories
- Heat Shrink & Adhesive Lined (browse the category) - Explore additional Seachoice heat shrink sizes for different cable diameters and splice lengths.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.