Using quadratic residue sequence, we’ve used variable heights to maximize sound absorption and minimize sound reverberation.



Easy Install

Easy Clean

Bleach Cleanable


Colour & Finish Options
Zintra 12mm Solid PET
Zintra Timber Print

Product Specifications


Experience reduced echoes and enhanced speech clarity.

Zintra Quadratic sticks are designed to enhance acoustics through the innovative use of a quadratic residue sequence. Variable heights strategically enhance sound absorption while minimizing reverberation, ensuring a more evenly distributed sound energy throughout the room.

Each pattern comprises 8 sticks, repeating systematically to optimize outcomes.

Suitable for both ceiling and wall applications, Zintra Quadratic Sticks redefine acoustic performance with precision engineering.

Available in narrow width and a variety of finishes tailored to your aesthetic preferences.


All sticks are: 2743mm (108") Long .

Set includes 2 x each:

  • 25mm (1"), 51mm ( 2")

  • 76mm (3"), 102mm (4") Deep Sticks


Zintra Acoustic Panel - 100% Solution Dyed (Colour Through) Polyester

12mm (1/2") - Density 2.4 kg /m² 0.5 lb/ft²


Zintra is made from 100% recyclable materials.

  • 60% post-consumer recycled content from PET bottles.

  • 35% pre-consumer recycled content from PET chips

  • 5% polylactic acid (PLA)

Fire Rating

ASTM-E84 – Class A classification
AS ISO 9705 – 2003 – Group 1 classification
EN-13501 – B-s2-d0 classification


Visit FAQ for more details.

Assembly & Delivery
  • Ships Flat Pack, except 1" (24mm) which ships glued

  • Assembly Required

Go to the Technical Documents and download the Installation Guide for more details.

Supplied As

Flat Pack

  • 7 x 1" (25mm)

  • Aluminium Tube Notched

  • 16 Narrow Sticks

  • NOT Available in Wide

Suggested Installation

Go to Technical Documents and download the Installation Guide for more details.

How to Specify

Select PET Color

Care Instructions

Vacuum to remove dust.

Dab Zintra with a damp clean cloth and mild solution of liquid detergent and warm water. Repeat using only clean water, then pat dry with a lint free cloth.

For difficult stains, use a solution of household bleach (10% bleach / 90% water). To remove the bleach, repeat using a clean, water dampened cloth, then pat dry.

Always test in an inconspicuous area first and if you don't see the expected results, contact us.


The Zintra Acoustic Solutions range is customisable to your project. Please get in touch with your local contact for details.

Additional Comments

NRC 0.95