Acoustical Underlayments

Are you an Architect or Designer looking for the perfect sound solutions for your project? Follow this link to the arcat system and let the system write the specification for you. Should you have any questions, please call 888.900.7892 and we will be more than happy to assist you. Have a smaller project and just need a few rolls, go to and purchase from there. They carry the whole line of Proflex and can deliver anywhere in the world, you dont need to be a large retailer or installer to purchase there. PROFLEX™Products, Inc. manufactures state of the art products that can assist with water vapor reduction, sound control, and crack suppression. The membranes are specially designed to be used under thinset and mudset mortars and adhesives.

PROFLEX membranes are ideal for surface prep of interior and exterior applications of finished flooring,including ceramic tile, stone brick, and for interior applications of wood and other flooring. PROFLEX™ membranes bridge cracks in the substrate and are guaranteed to eliminate the transfer of crack up to 3/8″ wide to the finished flooring.

Proflex 90 Mega Sound Control. RCU 250 and a variety of other floor prep and soundproofing materials. Specializing in sound control and crack isolation. PROFLEX has been a pioneer for years in the development of products designed to make flooring and finished surfaces last longer then ever. By keeping at forefront of ever changing technology, PROFLEX continues to be a driving force in the flooring installation industry, and providing our customers the peace of mind that a quality flooring system will last for years is a part of their building. Check us out in Floor Covering Installer Magazine.
Sound Control

PROFLEX Products provides innovative products engineered for crack suppression, sound reduction, moisture control and weatherproofing applications that are commonly found in today’s building and remodeling industries.

QT Sound Insulation is a line of high quality sound control underlayment, manufactured in the USA by ECORE International, a leading innovator in recycled products technology. QT is made from 92% recycled rubber and has been tested in over 200 different laboratory and field test assemblies.

QT has been proven to repeatedly perform as engineered to meet design requirements. The product and engineering support that is provided by QT Sound Insulation guarantees that QT will work as specified, every time.The QT product line includes QTscu and QTrbm, resilient sound control underlayment and a dimpled, resilient base mat. QTscu is used directly under floor finishes, yielding exceptional results even under hard surface flooring and over concrete and wood joist construction. QTrbm can be applied under gypsum or full weight concrete to produce some of the thinnest sound rated systems in the industry.

Compatible with a direct application of floor finishes including ceramic tile, stone, laminate, hardwood, vinyl, and carpet.

  • Anti-fracture crack bridging properties
  • For multi-family housing, high rises, single family homes, or office buildings
  • Outperforms cork, felt, plastic, and roofing membranes
  • Lifetime warranty against product defects and workmanship
  • Engineered to provide the highest IIC rating improvement as measured by ASTM E2179
  • Results are backed by over 200 independent laboratory and field tests in a variety of floor-ceiling assemblies per ASTM E492, E90 and E1007
  • Meets all established indoor air quality standards
  • Meets and exceeds tough building code requirements while adding less than 1/2” of floor height

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ECORE QT Sound Control Underlayments


PROFLEX Adhesives

PROFLEX Cleaners – Enhancers – Sealers

PROFLEX Floor Repair Products

PROFLEX Moisture, Crack, Sound Control Membranes

PROFLEX Sound Control Underlayments

PROFLEX Surface Preparation

PROFLEX Surface Protection

PROFLEX Thinsets – Mortars – Additives

PROFLEX Waterproofing Membranes