QT Sound Control (Ecore)

Lancaster,  PA 
United States
  • Booth: 724

QT Sound Insulation is a line of high quality sound control underlayments, manufactured in the USA by Ecore International, a leading innovator in recycled products technology. QT has been tested in more than 400 laboratory and field test assemblies. QT has been proven to repeatedly perform as engineered to meet design requirements.

Welcome to QT Sound Insulation!

QT Sound Insulation is a line of high quality sound control underlayments, manufactured in the USA by Ecore International, a leading innovator in recycled products technology. QT has been tested in more than 400 laboratory and field test assemblies. QT has been proven to repeatedly perform as engineered to meet design requirements.

Brands: QT Sound Control, Ecore


QT Sound Control Underlayment Music Box Demonstration
QT Sound Control Overview of Acoustics

 Press Releases

  • Flooring at Bard’s Crossing Retirement Community Exceeds Expectations of Residents

    Retirement communities by their very nature are expected to be quiet places. So when Wensmann Homes, the builders of Bard’s Crossing, planned an 83,000 sq. ft. retirement community condominium in a suburb of St. Paul, MN, they designed the floor/ceiling assembly to more than meet the expectations of potential residents.

    The floor/ceiling design utilized two layers of Type “X” gypsum board, resilient channel, 1” of Hacker FIRM-FILL® 2010 gypsum concrete, and a sandwich configuration of QTrbm and QTscu resilient soundproofing mat.

    Mike Vallez, project manager of design and construction for Wensmann Homes, explains the choice of sound insulation. “QTrbm produced the highest IIC ratings of anything we’ve used. We were extremely satisfied with the results.” The open web assembly (see assembly drawing on reverse) produced IIC field ratings of 64 with wood, 55 with ceramic tile, and 56 with vinyl. Vallez had worked on four previous projects with Wensmann Homes, and says the QTrbm sound control results were by far the best. “When people are buying condos, they don’t want to hear the neighbors walking all over the place. So we made an investment in sound control,” says Vallez.

    A licensed applicator of Hacker Industries, Inc., had similar things to say about QTrbm. The gypsum concrete and underlayment contractor installed QTrbm for five to ten cents less than other materials because of QT’s ease of installation. Besides saving money on labor costs, Hacker Industries also liked the way the product performed, noting, “QTrbm provides better noise deadening than other sound insulation products.”

    John LoVerde of Veneklasen Associates, who performed the sound testing on the Bard’s Crossing project, is familiar with QT and its performance in various assemblies. John encounters QT on nearly a fifth of the jobs he tests. LoVerde says, “Designers want the materials they spec to be reliable today, tomorrow and everyday thereafter.” He prefers materials like QT that have the flexibility to perform at a high level with a variety of assemblies, and under a full range of floor toppings.

    In a small corner of Minnesota, QT yielded big results—saving money, saving time and achieving some of the highest sound control ratings in multi-story residential housing.

    Products Installed

    • 83,000 SF — 6mm QTrbm
    • 83,000 SF — 5mm QTscu


  • QTscu
    QT Sound Insulation is a high-quality sound control underlayment manufactured in the USA. The original recycled rubber impact sound insulation since 2000....

  • QTscu is engineered for use directly under most floor finishes, yielding exceptional impact sound insulation results, even under hard surface flooring for concrete or wood-framed construction. QTscu is available in 48-inch-wide rolls and five standard thicknesses, ranging from 2 millimeter (mm) to 15 mm. Also available with a vapor barrier, SCU can be installed under most types of grouted, glued, and floating floors, including hard tile, hardwood, engineered wood, laminate, LVT, and carpet. Manufactured in Pennsylvania from 92-percent resilient recycled rubber and backed by more than 400 independent laboratory and field tests, QT SCU has been repeatedly tested, proven, selected, and used in some of the best hotels and multi-family developments in the world.

    Available Thicknesses: 2, 5, 10, 12, and 15 mm

    • Comes in 48" wide rolls


    • Fast, hassle-free installation
    • Compatible with most floor finishes
    • Available in 48-inch wide rolls and a variety of standard and custom thicknesses
    • Vapor barrier option available
    • Supported by over 550 independent lab/field tests and an acoustic engineer
  • Perimeter Isolation Strip
    Perimeter Isolation Strips break the path of vibration transmission between the floor and the wall....

  • Our perimeter isolation strips consist of expanded, closed cell, plank, polyethylene foam that meets ASTM D 1056 and ASTM D 3575 standards. This accessory is an economical, lightweight, flexible, compressible, resilient, non-absorbent, and inherent bond breaker that minimizes lateral sound transmission.

    Material Specifications

    • ASTM D-3575/ASTM D-1056

    Available Sixzes and Packaging

    • Standard thickness 6mm x 2.5" x 50ft rolls
  • QTrbm (Resilient Base Mat)
    QTrbm is designed to produce some of the thinnest sound rated systems in the industry....

  • Composed of 92-percent recycled rubber, QTrbm is a dimpled mat designed for use under gypsum or full weight concrete. QTrbm is available in four standard thicknesses ranging from 6 millimeter (mm) to 25 mm. Also available with a vapor barrier, QTrbm is ideal for use under full weight surfaces, such as gypsum concrete, and features quick and easy dry-laid installation. Supported by more than 400 independent laboratory and field tests, QTrbm outperforms cork, felt, plastic, and roofing membranes while meeting all established indoor air quality standards to make it one of the most effective and sustainable products available.

    Available Thicknesses: 6, 10, 17, and 25mm

    • 6 - 17mm come in 54- inch-wide rolls
    • 25 mm thickness comes in 48-inch-wide rolls


    • Easy installation - just roll out and tape

    • Approved in more than 82 UL floor/ceiling assemblies and is system rated for commercial and residential use per ASTM C627

    • Minimum 1-inch pour meets sound rating criteria and is rated light commercial by the Tile Council of North America

    • Durable enough to withstand movement of heavy equipment on surface

    • Very low compression set versus entangled mesh mats

  • E-Grip III
    E-Grip III is a zero-VOC, low odor, one-component urethane adhesive formulated specifically for use with
    Ecore’s family of surfacing products....

  • E-Grip III features improved tack properties and has been specifically engineered to be solvent-free. With a moisture-cured, no-mix, non-sag and permanently elastic formula, it provides excellent adhesion to elastomers, concrete and wood in both indoor and outdoor applications.


    • Zero-VOC formula (SCAQMD Rule #1168)1
    • Solvent Free
    • No mixing required
    • Excellent curing cycle
    • Very low odor
    • Non-flammable
    • Available in 2 gallon and 4 gallon pails, and 10.1 oz cartridges
    • Meets Collaborative for High Performance Schools (CHPS) Low-Emitting Materials criteria (CA Section 01350)2
    • Can contribute towards obtaining LEED credits

    Physical Data

    • Adhesive Type: Single component polyurethane
    • Maximum RH: 85% per ASTM F-2170
    • Color: Gray
    • Freeze/Thaw Stability: Stable
    • Antimicrobial: Yes
    • Application Temperature: 40˚F to 100˚F
    • Adhesive Cure System: Moisture-cured
    • Flashpoint: >500˚F
    • Voc Content: 0 lbs/gal (calculated)
    • Shelf Life: 12 Months
    • Solvents: 0 lbs/gal (calculated)
    • Working Time: 30-40 Mins