SONEX Basix Ceiling Tiles


NRC Range: 0.65 – 0.90
Tile size: 24″ x 24″

SONEX Basix is available for wall and ceiling panel applications. The panels are installed using our acouSTIC adhesive.

  • NRC Range: 0.65 - 0.90
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.

With SONEX Basix Ceiling Tiles, you are only limited by your imagination.

SONEX Basix Ceiling Tiles provide exceptional sound absorption and have Noise Reduction Coefficients (NRC) up to 1.20, depending on the pattern chosen.

Manufactured from willtec® foam, SONEX Basix also maintain their integrity in moist or humid environments without sagging. With a unique waterbased HPC-coated surface – available in standard, premium and custom colors – SONEX Basix are durable and simple to clean with a damp cloth.

Superior style and excellent performance – SONEX Basix are simply the ultimate design.

• Recommended adhesive is acouSTIC
• Manufactured without a 3/8” thick backerboard
• Additional tiles available in non-boxed quantities for a 20 percent up-charge per piece

Additional Information

Product Information

Physical Data
Sound Absorption Data


  • Fits any grid systems
  • Standard 24″ x 24″ dimension


  • Multipurpose rooms and gymnasiums
  • Large classrooms or music rooms
  • Any large, open room with reverberation problems


  • Made from willtec® foam, which is Class 1 fire-rated according to ASTM E 84 for flame spread and smoke density.
  • Standard water-based acoustic coating color options in arctic white, ivory, beige, light blue, light, medium or dark grey, black and other premium or custom options are available


  • Quickly drops into ceiling grids, or simply glues onto existing, clean surfaces
  • Cross-tees facilitate retrofitting of 24″ x 48″ lay-in panels


CONTOUR Tile Instructions for Adhesive Installation:

CONTOUR Ceiling Tiles are available in two different versions: one with a backerboard for installation in a ceiling grid; the other without a backerboard for installation with adhesive directly to any wall or ceiling surface.

  • Recommended adhesive is acouSTIC (part PA-02). Other adhesives may not be compatible with our foams and may emit a strong odor
  • Each 10.5-ounce tube of acouSTIC adhesive will install approximately 32 square feet of CONTOUR Tiles. Each tube fits into a standard caulking gun.
  • Wear clean cotton or canvas gloves during installation. Latex gloves are NOT recommended.
  • Cut adhesive tube end to produce a 1/4″ bead.
  • Make sure the surface to which you are applying the tiles is clean and free of dust or residue.
  • First apply a 1 /4″ bead of adhesive around the entire perimeter of the tile approximately 1″ away from the edge.
  • Second, apply a 1/4″ bead of adhesive from opposite corners through the center of the tile to create an “X”.
  • Press into place and hold for 5 seconds.
  • Next, pull the tile away from the surface to allow the adhesive to become tacky. Then, gently but firmly, press the tile back into position.
  • CAUTION: If you apply the adhesive too close to the edge it can squeeze out when the tile is pressed into place. If you apply the adhesive more than 1″ away from the edge, the tile may not properly bond against the hanging surface.

General Installation Notes:

  • When cutting CONTOUR, HARMONI or WHITELINE tiles, best results are achieved when cutting is done from the back side.
  • Be sure to lay tiles on a clean surface before cutting.
  • For best results use a sharp razor or fixed-blade knife and metal straightedge. Cutting with a dulled blade can
    produce a rough, unsightly edge. The knife blade should be long and sharp enough to cut evenly through the entire thickness with a single measured stroke.
  • An electric carving knife is the perfect tool for cutting and trimming CONTOUR, HARMONI and WHITELINE
  • When making free-hand cuts to fit the tiles around an obstruction, it is usually better to undersize the cut,
    then test fit and trim off more of the tile as needed for an accurate fit.
  • Store all cartons right side up and flat in a clean, dry area, enclosed and protected from the elements such as rain, snow, and excessive heat or cold.
  • Do not sit on or stack any materials on top that could crush protective shipping cartons as this may cause damage to the product.
  • Do not open shipping carton or remove ceiling tiles until ready to install.


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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