Name: NVX SDST3
Brand: NVX
SKU: sdst3
Price: 9.99 USD
Availability: LimitedAvailability
Rating: 5.0000 (1 reviews)

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Product highlights

• Extruded butyl rubber on rolled release paper
• Zero shrinkage: maintains moisture and air barrier
• Resistant to water and mineral oils
• Great for Mounting tweeters and Subwoofers

Learn more about the sdst3

Universal – fits most vehicles.

Similar items | Update vehicle | Vehicle store

List price $11.99

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$9.99

with warranty

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In-House Experts

NVX - Worth the Envy - Direct to Consumer Car Audio

Other Toyota Echo owners bought

Description

Authorized dealer

Product Details:

9.84 square feet sound deadening tape roll
Premium sealant tape designed for vehicles
Perfect for sealing headlights, tail lights, windshields, doors, and more
Extruded butyl rubber on rolled craft paper release liner
No asphalt, tar, or cheap fillers - will not outgas, melt or fall off
Designed to create a long-lasting and weatherproof seal
Zero shrinkage: maintains moisture and air barrier
Authorized Internet Dealer
1-year Manufacturer's Warranty

Specifications:

Install Location: Universal
Material Thickness: 0.083" (2.1 mm)
Amount of Material: 9.84 square feet
Material Use: Sealant tape for deadening materials
Optimal Performance Temperature: 14°F to 140°F
Rated Temperature Range: -75°F to 450°F
Application Temperature: 60°F to 90°F

Common Product Uses:

Window glazing tape
Bond plexiglass to speaker boxes
Speaker mounting bolt areas
Auto glass installation
Re-attach vapor barrier on door panels
Mounting tweeters or speakers
Mounting subwoofers in between wood and metal
Decouple rattling plastic panels
Seal headlight or taillight lenses

Frequently Asked Questions (FAQ)

My sealant tape isn't sticking to the surface even after pressing it. Is the product defective?

Adhesion usually fails due to invisible surface oils or "micro-dust." Clean the area thoroughly with 70% isopropyl alcohol and ensure it is 100% dry. For maximum grip, the NVX SDST3 bonds best when the surface is warm to the touch.

I still see small gaps and air bubbles after applying the strip. How do I get a watertight seal?

Hand pressure often leaves "eyes" or air pockets. Use a hard silicone roller to press the NVX SDST3 from the center outward. This forces the butyl into surface irregularities, creating the airtight seal needed for headlights or doors.

The tape is too messy and keeps stretching out of shape during my install. How can I control it?

Butyl is very pliable. For a cleaner install, place the NVX SDST3 roll in the fridge for 30 minutes before use. This firms up the rubber, making it much easier to cut and position precisely without it sticking to your fingers or over-stretching.

I used the sealant for my car door speakers, but I’m still hearing rattles. Did I apply it wrong?

Ensure you created a continuous, unbroken loop. If there is a gap where the ends meet, overlap them by 1" and knead them together. This ensures the NVX SDST3 acts as a true gasket, decoupling the speaker and stopping air-leak rattles.

Can I use this to reseal my DIY retrofit headlights, or will they leak again in the rain?

Yes, it is ideal for this. To prevent leaks, ensure you remove all old, brittle sealant first. Lay a consistent bead of NVX SDST3, then use a heat gun to slightly soften the butyl before clamping the lens back on for a professional-grade seal.

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Specifications & Details

Sound Damping Specifications

Installation Location

Universal

Material Thickness

0.083"

Total Amount of Material

9.84 square feet

Secondary Use

Sound Absorber

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Manufacturer

Customer Ratings & Reviews

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By feature average rating

Durability		5
Value		5
Features		5
Design		5
Usability		5

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NVX SDST3 Sound Deadening tape

The Nvx SDST3 Sound Deadening tape is fantastic stuff you can use this for so many different things window,doors,speakers, subs,plexiglass it's waterproof won't shrink or fall apart once you put it on it stays until you take it off I love it think I'm going to order more this stuff is really good and worth the money to do so many different things

By Patrick on December 15, 2025 Checkmark Icon

Verified purchase