
Advanced Camper Van Insulation & Soundproofing - Duck Liner
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TEC Features:
- Condensation Prevention: Eliminates the risk of moisture buildup by preventing warm interior air from contacting cold metal surfaces, safeguarding against mold and potential health hazards.
- Reflective Foil Layer: Enhances insulation by reflecting radiant heat back into your van, ensuring a consistent and comfortable interior temperature.
- Superior Noise & Thermal Insulation: Advanced closed-cell sponge neoprene with an R-value of 0.89 (3/8-inch thickness) provides top-tier sound deadening and thermal efficiency.
- Robust Construction: Dust-proof, waterproof, oil-resistant, and corrosion-resistant material ensures long-term durability and reliable performance.
- Fire Resistant: Non-combustible for added safety during your van life adventures.
- Adhesive Backing: Easy-to-use back adhesive layer simplifies installation for hassle-free application to van surfaces.
TEC Specs:
- Material: Closed-cell sponge neoprene with reflective foil backing
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Roll Dimensions:
- Length: 32.5 ft
- Width: 3.25 ft
- Insulation Rating: R-value of 0.89 (3/8-inch neoprene)
- Requirements by Vehicle:

Why Choose the Tec Vanlife DUCK Liner?
The Tec Vanlife DUCK Liner is designed to elevate your vanlife experience by offering unparalleled comfort, safety, and efficiency.
- Condensation Control: Effectively manages moisture to prevent mold growth, creating a healthier living environment in your van.
- Enhanced Insulation: Reflective foil and closed-cell neoprene work together to maintain optimal interior temperatures, no matter the weather.
- Sound Deadening: Absorbs noise for a quieter and more comfortable vanlife experience.
- Durable & Lightweight: Engineered to withstand the rigours of van travel while remaining easy to work with during installation.
How It’s Made
The Tec Vanlife DUCK Liner is crafted from a premium combination of aluminum foil, closed-cell sponge neoprene, and a back adhesive layer, delivering a range of advantages for your camper van conversion:
- Aluminum Foil Layer: Reflects radiant heat back into the van, improving insulation efficiency and maintaining a consistent interior temperature.
- Closed-Cell Sponge Neoprene Core: Provides superior noise absorption, thermal insulation, and protection against moisture, ensuring a quiet and comfortable living environment.
- Back Adhesive Layer: Offers quick and hassle-free installation, allowing for a secure fit directly onto van surfaces without additional tools or materials.
This innovative material combination ensures durability, efficiency, and versatility, making the DUCK Liner the ultimate choice for van insulation and soundproofing
Additional Features:
- Safety First: The non-combustible material provides peace of mind during your travels.
- Pair with 3M Thinsulate: Maximize insulation and comfort by combining the DUCK Liner with 3M Thinsulate for a comprehensive solution.
The Tec Vanlife Advantage
The Tec Vanlife DUCK Liner is more than just insulation—it’s a complete solution for creating a safe, efficient, and comfortable living space in your van. From noise reduction to thermal efficiency, this product offers everything you need for your off-grid adventures.
For the Best Installation Results
- Ideal ambient & VAN METAL SURFACE temperature is between 50-80F
- Ensure the surface is clean and free of any prior glues, epoxies, insulation etc.
- Apply the Duckliner in lengths, peeling the adhesive from top to bottom slowly, ensuring even application with no air pockets.
- Once the glue-side is adhered to the wall, using a roller, roll the entire surface ensuring the glue-side is completely secured.
- Tape the seams using construction vapour barrier tape to ensure an air-tight envelope.
- Finish the job by glueing 3M Thinsulate to provide the required 'R' value.
Pairs well with
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Advanced Camper Van Insulation & Soundproofing - Duck Liner
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Built by Vanlifers. Trusted Nationwide.
Every part we offer is the same gear we install in our custom builds — field-tested by 300+ vans across the country.

Designed for DIY Van Builds
Whether you're outfitting a Sprinter, ProMaster or Transit, our parts are made to install easily and perform reliably on the road.
FAQs
Please read our FAQs page to find out more.
Do your products work with all van models?
Yes! Most of our parts specify compatibility with Mercedes Sprinter, Ram ProMaster, and Ford Transit platforms. Check each product page for exact fitment. Still unsure? Shoot us a message — we’re happy to confirm before you buy.
How long does shipping take?
Orders usually ship within 2–3 business days. Transit time depends on your location, but most U.S. customers receive their order within 5–7 days. You’ll get tracking info as soon as it ships.
Some items may ship separately depending on vendor, inventory, or warehouse location — so you might receive multiple packages for a single order. You’ll get tracking numbers for each one.
Do you offer returns or exchanges?
Yes — we accept returns within 30 days of delivery for unused, uninstalled products in original packaging. Just contact us and we’ll help get the process started.
Please note: Some products ship directly from our vendor partners, and in those cases, the final decision on return eligibility is made by the vendor. We’ll always advocate for you, but policies may vary slightly by brand.
Can I pick up my order locally?
At this time, all orders ship from our warehouse — we don’t offer local pickup. If you’re working with our van build team, parts can be coordinated into your build directly.
Do you offer bulk discounts or fleet pricing?
Yes! We work with upfitters, outfitters, and van builders nationwide. Reach out to us with what you need and we’ll get you a custom quote.
