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-shrinkable tubing designed for electrical insulation and environmental protection. The 3:1 shrink ratio with an adhesive liner forms a complete seal to help prevent corrosion while improving abrasion resistance.
Key Features
- Marine grade, flexible polyolefin heat shrinkable tubing
- 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
- Electrical wire and cable splicing protection
- Environmental sealing for marine electrical connections
- Heat-shrink insulation for exposed conductors and terminations
- General cable abrasion protection in harsh environments
Product Details
- 3:1 shrink ratio with adhesive liner
- Flame retardant
- Operating temperature range: -55°C to 110°C
- Product SKU: 50-60331
Parts Desk Insights
Best Use Case: Ideal for insulating and sealing marine electrical connections where moisture and corrosion protection are important, such as wire splices and exposed termination areas.
Common Issues: Common outcomes of improper use include incomplete sealing (if the adhesive liner doesn’t fully flow during heating) and gaps at ends (if the tubing length isn’t sufficient). Use the correct heat-shrink technique and ensure the tubing fully shrinks down over the connection and that the liner is properly activated.
Related Products & Accessories
- Browse Heat Shrink & Adhesive Lined - See the Heat Shrink & Adhesive Lined collection for additional Seachoice sizes and styles.
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.