PET, mineral wool and slatted panels, NRC 0.70 to 0.95 tested to ASTM C423. Chosen by rating, not by thickness.
| Parameter | Values |
|---|---|
| Core | Mineral wool — non-combustible, and the reason this panel is specified where a class is named · 100% PET polyester fibre — no mineral core and no dust when cut |
| Absorption | The mineral core reaches a given figure in less depth than a felt panel does |
| Thickness | 9 / 12 / 15 / 18 / 20 / 25 mm; the depth needed follows from the target, not from preference · 9 / 12 / 15 / 18 / 20 / 25 mm backing assembly; the slat face adds to finished depth · 9 mm / 12 mm / 15 mm / 18 mm / 20 mm / 25 mm — thickness and air gap together set the figure · 9 / 12 / 15 / 18 / 20 / 25 mm — thickness and the air gap together set the absorption |
| Format | 1220 × 2440 mm sheet, or factory-cut 600 × 600 and 600 × 1200 tiles · 1220 × 2440 mm panel, or 600 × 600 and 600 × 1200 modules · 1220 × 2440 mm sheet, or 600 × 600 and 600 × 1200 tiles; custom sizes accepted |
| Mounting | Air gap behind the panel — the cavity is part of the absorber, not a fixing detail · Air gap behind the panel is part of the absorber · On battens with an air gap — a PET panel glued flat gives up part of its performance |
| Facing | An acoustically transparent facing lets the core work; a sealed veneer reflects sound |
| Standard | ASTM C423 for sound absorption. Ask for the report for the grade you specify. · ASTM C423. Ask for the report for the grade you specify. |
| Construction | Timber slats bonded over a black acoustic felt backing, supplied as one assembly |
| Fixing | Screwed through the felt at a slat into the substrate — no frame needed |
| Slat spacing | The gap between slats is part of the absorber, so two spacings do not perform alike |
| Edge | A cut exposes the felt core, so every visible edge needs a trim |
| Approach | Specify by the NRC the room needs, then choose core, thickness and facing to reach it |
| NRC range | 0.70 / 0.85 / 0.95 available, tested to ASTM C423 |
| Standard size | 1220 × 2440 mm, 600 × 600 mm, 600 × 1200 mm; custom sizes accepted |
| Core options | PET polyester, mineral wool, or slat-over-felt, depending on the figure and the fire class |
| Site cutting | Cuts with a sharp knife; no saw and no specialist tool needed |
| Fire | Confirm the class the project requires; a polyester panel is not automatically non-combustible |
Tolerances and densities vary by section profile. Send the drawing for the exact values on your order.
If you are selecting acoustic panels for an office, studio, school, or commercial space, you have probably encountered the term NRC rating . But what does…
Read the guideIn concrete formwork, MDO plywood and phenolic plywood are the two most common engineered panel choices. Both offer excellent concrete finish, but their composition, performance, and…
Read the guideIn concrete formwork systems, the choice between H20 timber beams and solid timber beams is critical for project cost, speed, and quality. While both have been…
Read the guideTell us the profile, the length and the quantity. We will confirm what is in stock and what is made to order.
Send drawings or specs — we reply in one business day
