Skip to product information
1 of 1
EnviroFlex®

EnviroFlex™ Black Vinyl Soundproofing Seam Tape - 2" x 108'

EnviroFlex™ Black Vinyl Soundproofing Seam Tape - 2" x 108'

Weight 1LB/SF
Thickness 1/8 inch
STC 26
Coverage 40 SF
Regular price $22.99 USD
Regular price Sale price $22.99 USD
Sale Sold out
Quantity
Free ShippingPrice Match ProtectionVolume Discounts Auto-Apply
Free Shipping
Price Match
100% Recycled Materials
Manufacturer Direct

Key Features

  • Heavy-duty recycled material
  • Cuts with a utility knife
  • Manufacturer direct
  • Free shipping
View full details
SR — Content Columns
Helpful Information

EnviroFlex™ Soundproofing Vinyl Seam Tape, 2" x 108'

Built for Real Projects

Practical Product Guidance

Explain the product, material, policy, or process in a clear way that helps customers make a confident decision.

✓
Helpful Tip

Use This Section Anywhere

This section works well on product pages, support pages, resource pages, and landing pages.

✓
Product Information

Product Details

Why This Material

Built for Real-World Performance

Use this section to explain why the material, construction, or product design is the right fit for the application.

Material
01

Dense and Durable

Built to add practical protection, weight, structure, or performance depending on the product application.

Install
02

Easy to Work With

Designed for straightforward cutting, fitting, fastening, or placement using common tools.

Use
03

Made for Real Projects

Useful across residential, commercial, fleet, shop, and jobsite applications.

Soundproofing Performance

What STC 26 Means in a Real Wall Assembly

MLV works by adding dense, flexible mass to the wall system. The standalone STC rating matters, but the bigger result comes from how the material performs as part of a complete wall, ceiling, or enclosure assembly.

28Base wall
→
34+ Insulation
→
41+ MLV
→
50+Full assembly
①

Standalone STC shows material performance

For this product, STC gives shoppers a simple way to understand the material’s sound-blocking capability before installation.

②

Assemblies perform better than single layers

MLV is most effective when combined with drywall, insulation, sealed seams, and proper mechanical fastening.

③

Seams and gaps matter

Sound travels through weak points. Seal seams, edges, outlets, and penetrations to get the best result from the system.

Important: STC results depend on the full assembly, including framing, insulation, drywall layers, sealed seams, penetrations, and installation quality.

Drywall
STC MLV Barrier
Stud Cavity
Insulation
Drywall
Applications

Built for Real-World Use

Application

Walls

Use as a barrier layer in wall assemblies where added mass helps reduce sound transfer.

Application

Ceilings

Add material above or below ceiling assemblies to support better noise control between spaces.

Application

Vehicles

Cut to fit vans, cars, service vehicles, and other mobile spaces that need added sound control.

Install Guide

Simple Steps for a Better Finished Project

Difficulty DIY Friendly
Tools Basic
Cutting Utility Knife
Support Guides Available
1
Step 1

Measure the project area

Confirm the surface, space, vehicle floor, stair, or installation area before cutting or ordering accessories.

Pro tip Measure twice before trimming or fastening.
2
Step 2

Cut or position the material

Use a straight edge and sharp utility knife where trimming is needed, or align the product before final placement.

3
Step 3

Install and secure

Fasten, tape, drill, adhere, or drop the product into place depending on the product type and application.

4
Step 4

Check the finished result

Inspect seams, edges, fitment, coverage, and surface contact before putting the area back into service.

Questions

Product Questions, Answered

Common Questions

Tip: