Sillon means “groove” in French — is a modular cork panel designed to create seamless, large-scale acoustic walls.
Inspired by architectural repetition, each tile can be rotated on any of its four sides, allowing architects and designers to generate varied patterns, shifting perspectives and elegant continuity.
The subtle grooves disappear into the overall composition, giving the wall a fluid, sculptural presence.
Made from 100% natural cork, with no additives or chemical treatments.
Specifications
Sound absorption
Natural sound absorption, depending on thickness and shape. Certified lab-tested Class: D (NRC 0.3)
Fire classification B
Burns without flame or toxic emissions. Withstands –180°C to +120°C (–292°F to 248°F).
Thermal Insulation
Biocompatible insulator with zero deterioration, resistant to pests, mold and bacteria.
Conditions of use
Indoor only – 40% to 80% RH recommended, avoid direct sunlight or mechanical stresss
Sustainable
Carbon negative, low embodied energy. Fully recyclable, renewable and biodegradable.
Hypoallergenic
Dust-free, allergen-free, safe for asthma sufferers.
Durable
Stable, compressive-resistant, vapor-permeable. Not affected by rodents or chemical agents.
Natural calm, crafted in cork
Beyond its visual depth, Sillon offers excellent sound absorption thanks to its density and micro-texture. Ethically harvested and 100% natural, cork helps reduce reverberation while adding warmth and biophilic character to interiors.
With its soft earthy tones and low-maintenance properties, Sillon brings a sense of stillness and tactile comfort, perfect for workspaces, hospitality areas or any space in need of quiet sophistication.
The tile
Dimensions
325 x 325 x 35 mm (12.8" × 12.8" × 1.4")
Installation
Modular, wall-mount Indoor use only
Care
Avoid direct water or heat exposure
Colors
Slight variations in color and thickness may occur
Set composition
12 pc / set = 0,960m² (10.3 ft²)
Acoustic performance
Sillon tiles are tested according ISO 11654:1997 by a certified lab in the Netherlands. Sound absorption class D — NRC : 0,30
We’ll help you define the best layout and thickness for your acoustic goals.
Bring nature to life
Cork as a Material, Reimagined
Downloads
We’ve prepared a set of resources to help you design, present and specify Sillon cork tiles with ease. Click below to download a ZIP file containing technical sheets, CAD drawings, 3D models and acoustic test reports.
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Sample box
Discover our Sample Box
A curated selection of real mosses, finishes and color options to help you choose the perfect solution. Eco-designed and compact, packed in recycled materials with a magnetic closure.
Specifications
Understand Sillon at a glance
Naturalαw 0.30 (H) · Class D (ISO 11654) · NRC 0.30 (ASTM C423) · SAA 0.30
Darkαw 0.25 (H) · Class E (ISO 11654) · NRC 0.25 (ASTM C423) · SAA 0.27
LaboratoryPeutz bv, Mook, the Netherlands, report A 3544-4E-RA-001, accredited by the Dutch Accreditation Council (RvA)
Measured on325 × 325 mm tiles, 8 to 32 mm thick · 8.14 kg/m² in Natural, 10.04 kg/m² in Dark
That figure is valid forType A mounting to ISO 354:2003: tiles laid flat against the surface, butted tight, with no air gap behind. A gap or a batten changes the result
Reading the figuresαw is the single-number rating of ISO 11654, weighted across frequencies. NRC comes from ASTM C423 and averages four octave bands. They are not interchangeable
What it doesCork takes the edge off a room rather than deadening it. For a rated ceiling absorber, specify one
Absorption coefficient by frequency, measured on the tile at Peutz bv.
InstallationModular, wall-mounted, indoor use only. Each tile can be turned, so the pattern is set on site
Conditions of useIndoor only · 40% to 80% relative humidity · away from direct sunlight, water, heat and mechanical stress
CareDust it as you would a shelf. No water, no heat
Natural variationEach tile is a natural product: slight differences in colour and thickness are normal, and junction points can stay visible after installation
Cork2 finishes
NaturalDark
Composition92% cork granules, powder plus 1 to 2 mm grain, from ground, purified and dried cork oak bark · 8% BioCol Bs 30, a polyurethane binder suitable for food contact
Made byCompression moulding. No additives, no surface treatment, no coating
Fire, North AmericaFSI 50 / SDI 250, Class B · ASTM E84, Intertek report 105615306SAT-001 (2023). Class B, not Class A: where a project calls for Class A, specify a moss wall instead
Fire, EuropeNo EN 13501-1 report is held for the cork tile, so no European class is quoted. Ask us before specifying one where a class is required
BehaviourBurns without flame and without toxic emissions · withstands −180 °C to +120 °C (−292 °F to 248 °F)