SONEX Tec Sound Proofing Wedges


NRC Range: 0.85 – 1.0
Sheet size: 24″ x 48″
SONEX Tec Wedges give a clean straight look to a space while providing excellent noise absorption.

acouSTIC Adhesive sold separately.

  • NRC Range: 0.85 - 1.0
Limit of 10 boxes per order. Please call 800-662-0032 for purchases over 10 boxes.
COLORS: Colors do not necessarily reflect the actual color of the product.
SHIPPING TIME: Natural Finishes typically ship same day to 10 days, Standard Painted finishes typically 10 to 15 days and Premium Colors 15+ days.
SHIPPING RESTRICTION: Due to Proposition 65 and local building codes and regulations, polyurethane foam cannot ship into the state of California.

SONEX Tec Sound Proofing Wedges are used for reducing noise and increasing speech intelligibility. In addition to noise absorption the wedges deflect and scatter sound waves. This wedge shape also increases surface area for better performance. On top of that, SONEX Tec Wedge panels also have high Noise Reduction Coefficients (NRC) of 0.9 for 2″ and 1.0 for 3″.

SONEX Tec Sound Proofing Wedge acoustic foam provides powerful acoustical control with a linear look for use in a range of sound control applications. The anechoic wedge design provides increased surface area for superior sound absorption with an attractive aesthetic.

SONEX Tec Wedge utilizes a Class 1 fire-rated acoustical foam substrate to provide sound absorption. This material is suitable for use in public and private facilities. The Tec Wedge pattern easily installs to create a horizontal or vertical linear design.

SONEX Tec Wedge acoustic sound proof panels are available in natural grey or natural white colors. HPC coating is available to provide durability and a splash of color. HPC coating is only applied to the panel face. This is acceptable for installations where the panel edges will not be seen. HPC coating can be applied to the edges for an additional fee. These acoustic panels easily mount to any wall or ceiling surface with a water-based construction adhesive.

Additional Information

Product Information

Physical Data—willtec® foam
Material Open-cell melamine-based foam
Density 0.5 to 0.7 lbs./cu. ft. (ASTM D3574-77)
Long-Term Service Temperature 302°F
Fire Resistance Class Class 1 per ASTM E 84 (all finishes) Meets UL 1715 (willtec natural and)
Flame Spread per ASTM E 84 HPC coating: 15
Smoke Density per ASTM E 84 HPC coating: 100
Microbial Growth Passes UL 181, section 11
Fungus Resistance Rating 0 per ASTM G21
Finishes HPC coated


acouSTIC adhesive (part number PA-02) has been specially formulated to use with all SONEX®, WILLTEC®, CONTOUR®, WHISPERWAVE panel products, PROSPEC® Foams and Composites. This nontoxic, practically odorless, water-based adhesive makes direct-apply, glue-up installation work quick and easy. acouSTIC adhesive provides an immediate tack between panels and most substrates making for strong, permanent bonds. Other adhesives may not be compatible and may emit an odor.

acouSTIC Foam Adhesive


Nontoxic, water-based adhesive.
Easy cleanup with soap and water.
Compatible with both polyurethane and WILLTEC foams.
Each 10.3-ounce (304.61 ml) tube installs between 16 and 24 square feet (1.49 and 2.23 square meters) panel coverage.
Tube fits standard caulking guns.

General Installation Notes

Handle with care. Do not pick up or handle panels by the corners.
Store panel boxes flat in clean, dry areas protected from the elements; excessive heat, cold and humidity.
Do not set or stack anything on top of cartons.
Work panels with clean hands, tools, ladders, etc. on clean work surfaces. Wear clean, soft white cotton gloves to handle panel installation, recommended.
Super sharp, stainless steel smooth long-blade insulation knives are ideal for making straight cuts, slicing through thick WILLTEC and SONEX panels. Shorter-length utility and extendable snap-off blade knives are best suited for making smaller detail cuts.
For best results, cut panels through ‘exposed-to-view’ panel faces.

Installation with acouSTIC

Make certain that substrate surfaces to which panels will be applied are smooth, clean and level; free of dust, dirt and other residues or contaminants which could inhibit a strong bond to develop.
Cut adhesive tube tips back to produce a bead flow of 1/4 inch (6.4 mm) diameter.
Run a continuous bead of adhesive around the panel’s perimeter, approximately 1.5 inch (38 mm) from edges, then apply intermittent beads from opposite corners through the center of the panel creating an X.
Press panels firmly into place and smooth evenly across them to ensure a strong, lasting bond; adhesive tack should be immediate.

General Characteristics

General tolerances & dimensions stability

– Up to 2” – tolerances of +/- 2 MM = +/- 0.08”
– Above 2” – tolerances of +/- 3 MM = +/-1/8”

Length & width:
– Up to 24” tolerance of +/- 3 MM = 1/8”
– Up to 96” tolerance of +/- 6 MM = 1/4”

Sonex convolution (sonex one / valueline / classic / mini / junior):
– Pattern alignment to edge: +/-1”

Due to the nature of willtec material, temperature and humidity may cause dimensional changes of up to 4% by volume.

Color Chart

Natural WILLTEC®




arctic white

medium grey

light grey




*Color is impregnated in the foam and has a water-based acoustic coating on top.

Premium HPC Paint Colors



Orange Red

Orange Red








Sweet Corn


Brown Black

Dark Grey

A minimum order of five boxes is required for premium colors.


Polyurethane brown


Polyurethane charcoal


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