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Quilted Fiberglass MLV

Starting at $530.00

In stock
SKU
QFMLV
  • Available in 1 inch and 2 inch thicknesses with 1 LB MLV attached.
  • Used to wrap duct work and other pipe for sound isolation.
  • Significantly higher performance than 1 LB MLV.
  • $50 flat rate shipping on your entire order to main 48 US states only.
Grouped product items
Product Name Qty
1 POUND W/ 1 INCH INSULATION - 4.5 FEET x 30 FEET
$530.00
1 POUND W/ 2 INCH INSULATION - 4.5 FEET x 30 FEET
$595.00

Quilted Fiberglass MLV is a flexible, mass loaded vinyl laminated to a quilted fiberglass decoupler on one side. The combination forms a thin, lightweight acoustical product that displays excellent mechanical properties, while providing superior sound transmission loss.

Sound waves originating from the source will initially be absorbed by the fiberglass and then blocked by the mass loaded vinyl. Any reflected sound wave will be further dissipated into the fiberglass absorber.

This material won't shrink, rot, or cause metal corrosion. It also resists adverse environmental conditions and UV light.

Common applications for quilted fiberglass mass loaded vinyl:

  • HVAC duct
  • Drain pipe
  • Any lightweight metal, plastic, or similar surface

This material is not intended for low frequency sound transfer or footfall impact noise transfer. Our QuietImpact rubber underlayment is recommended instead.

*Samples are not available for this material. Other roll sizes or partial rolls are not available.

PRODUCT SPECS

QUILTED FIBERGLASS MASS LOADED VINYL PRODUCT SPECS

Weight 1.25 pounds (with 1" fiberglass) 1.45 pounds (with 2" fiberglass)
Tensile Strength 2,750 KPa (400 psi)
Tear Strength 70 lbs/in
Thickness 1/8" for MLV plus 1" or 2" for fiberglass decoupler
Ultimate Elongation 200%
Temperature Range -40oF to 180oF
Manufacturing Virgin material, not recycled, no odor


*Specs based on testing conducted on the 1 LB MLV.

QUILTED FIBERGLASS MLV SOUND RATINGS - INDEPENDENT TESTING

Hz 125 250 500 1000 2000 4000 STC Rating
1" Fiberglass 18 18 23 30 39 46 29
2" Fiberglass
20 23 28 37 48 56 32

*Each column shows decibel reduction at that frequency. Per ASTM E-90-97 E413-87.

INSTALLATION

Wherever the material is installed, it must be installed solid, with no gaps. Any gaps in the barrier should be caulked with any brand caulk and taped over with a standard duct tape or foil tape.

For other installations where the material cannot wrap around a surface, fasteners can be used. We would recommend using the fasteners (drywall nail or screw) sparingly to maximize decoupling and with a thin 1" fender washer to avoid tearing.

AROUND PIPES, DUCT, AND SIMILAR APPLICATIONS

MLV should be wrapped tight to the surface, overlap the seams slightly or butt the seams tight, and tape the seam with a foil tape found at any hardware store.

SHIPPING

This material ships next day from our warehouse in Ohio. Delivery is typically made within 3-10 business days after placing the order. Inventory is not guaranteed and can vary depending on the product type, size, weight, and quantity. Contact us by email for information regarding picking up your order.

DISCOUNTS

Discounts of up to 10% are available for the Quilted Fiberglass MLV, and up to 20% off most other products. This is based entirely on the dollar amount of your total order. Add all of your products and appropriate quantities to your cart to view the final price. For projects requiring over 2,000 square feet of material, email us with a request for a custom quote. Include the delivery address, product name(s) with quantities, and time frame for the project. We will promptly provide a quote for your project and, when possible, quote a lower price than the price quoted online.