The range
Five finishes. One material family.
Every Acosorb finish is the same mineral binder and recycled cellulose fibre. What changes between them is the grain, the build range and how much of the room they absorb — so the specification decision is which texture the design wants, and then what thickness the acoustics need.
Every figure on this page is manufacturer-published. Where the manufacturer publishes nothing, we publish nothing. Absorption is stated as NRC, the figure Australian specifications call for, with the ISO 11654 αw alongside it.
Every finish in the range is made from recycled fibre.
Not a recycled option sitting beside a virgin one — the whole range, and every standard colour in it. Black, Oman Grey, ILA Grey, Cool Grey and Denim Blue are all named in the declaration. The fibre is ECO Cellulose, and the manufacturer’s declaration is independently confirmed by TZÚS Prague, the Technical and Test Institute for Construction. Both the fibre processing and the product manufacture are ISO 14001 certified.
Not sure which one?
Three questions decide it almost every time.
Still not obvious? Send the ceiling plan and the acoustic report to office@mcphersonpainting.com.au and we will specify the product and thickness against your target before you issue.
Acoplaster F
Smooth, sanded
The smoothest surface in the range, and the only one that is not sprayed in mass. A 30 mm mineral-wool panel is bonded to the substrate and finished with a 2 mm plaster coat, so it reads as flat plaster and performs as an absorber.
Specify it when the ceiling has to look like a plastered ceiling and nothing else.
Acospray DC1
Finest spray, float finish
A binding agent and enriched cellulose fibre, sprayed in crosswise layers to the finest texture in the sprayed range. Applied in mass at 5–20 mm, or over a bonded mineral-wool base where the room needs the full absorption.
Specify it when you want a sprayed finish with almost no visible grain.
Acospray DC2 1.0
Fine spray
The workhorse of the range and the widest build band — 5 mm where ceiling height is tight, 45 mm where the room is hard. Absorption peaks across speech frequencies at about 25 mm, which is why it suits open-plan offices.
Specify it when you have a reverberation target and need to tune the thickness to hit it.
Acospray DC2 2.0
Pressed during application, flat read
The same material as DC2 1.0, pressed as it is applied. That gives a structured surface that reads flat from the floor — the closest a sprayed finish gets to plasterboard — in a thinner build that protects ceiling height.
Specify it on a refurbishment where the floor-to-ceiling height cannot be given away.
Acospray DC3
Medium-fine spray structure
The highest absorption in the range and the only finish that reaches ISO 11654 Class A. The coarser grain does a second job: under grazing or directional light it holds shadow, so the ceiling still reads as a material surface rather than a flat plane.
Specify it when the room is hard, the volume is large, or the ceiling is meant to be seen.
Green Line
As its parent system
Not a sixth finish. Green Line is a 100% post-consumer feedstock — recycled from consumer goods rather than from industrial residual streams — run through the DC2 1.0, DC2 2.0 and DC3 systems. Performance follows whichever parent system it is produced in.
Specify it when recycled content has to be visible, not just certified.
Finish photography: Acosorb International, from the sample boxes — the first five are shown in White so the grain compares directly. * Oman Grey is 100% recycled cellulose, the same as every other colour in the range. The one thing it sits outside is Acospray’s Cradle to Cradle certification (certificate 12297) — so on a project claiming against that certificate, specify another colour.
The whole range, compared.
One table, so a specifier can rule products in and out without opening five pages.
| Finish | Grain | Build | NRC | αw | ISO 11654 | Coverage | Colours |
|---|---|---|---|---|---|---|---|
| Acoplaster F | Smooth, sanded | 35 mm system | 0.90 | 0.95 | Class B | 7–8 kg/m² applied | 1 |
| Acospray DC1 | Finest spray, float finish | 5–20 mm in mass | 0.70 | 0.60 | Class D | 2–3 kg/m² per 10 mm | 1 |
| Acospray DC2 1.0 | Fine spray | 5–45 mm | 0.85 | 0.90 | Class B | 1.5–2.0 kg/m² per 10 mm | 5 |
| Acospray DC2 2.0 | Pressed during application, flat read | 5–25 mm | 0.75 | 0.65 | Class C | 1.5–2.0 kg/m² per 10 mm | 3 |
| Acospray DC3 | Medium-fine spray structure | 10–50 mm | 0.95 | 1.00 | Class A | 1.3–1.8 kg/m² per 10 mm | 8 |
| Green Line | As its parent system | As the parent system | — | — | — | As the parent system | 4 |
αw and NRC are the headline figures at the thickness named on each product page — absorption is a function of build thickness, so read the full table before you specify a number. Room performance is to be confirmed by the project's acoustic consultant against AS/NZS 2107.
The whole range is made from 100% recycled cellulose fibre — not part-recycled, and not a recycled option sitting alongside a virgin one. Every standard colour, Oman Grey included.
CIUR declaration · confirmed by TZÚS PragueThe Green Building Council of Australia assigns Acosorb products a Responsible Products Value of 9 — the figure a Green Star project claims against.
Green Star · the GBCA assigns the valueGroup 1 to AS 5637.1, so it is accepted on exit paths and in fire-isolated stairs where most linings are not.
AWTA test 25-004810 · 14 Nov 2025 · sprayed Acospray systemsGroup 1, tested to the Australian standard.
The NCC calls up AS/NZS 3837 via AS 5637.1 for wall and ceiling linings in Class 2–9 buildings. The sprayed Acospray systems were tested by AWTA Product Testing in Melbourne under test 25-004810 and assessed Group 1 — the highest group available, and the one accepted for exit paths and fire-isolated stairs.
| Property | Result | Standard / reference |
|---|---|---|
| Fire hazard group — sprayed Acospray systems | Group 1 | AS 5637.1-2015 · AS/NZS 3837 |
| Test report | AWTA Product Testing, Melbourne — test 25-004810, issued 14 Nov 2025 | Cone calorimeter, AS 5637.1 cl. 9(n) |
| Tested build-up | Acospray DC, grey, approx. 30 mm over 12 mm fibre cement sheet | 1.7–4.0 kg/m² |
| Average specific extinction area | 38.5 m²/kg | AS/NZS 3837 |
| European reaction to fire | B-s1,d0 | EN 13501-1 · Efectis |
| Borate-free option | B-s2,d0 | EN 13501-1 · on request |
| Early fire hazard | Group 2 | AS/NZS 1530.3 — not for classification |
| Adhesion | Bond tested — holds 736 to 12,600 times its own weight | Intertek · ASTM D7234 |
| Colour fastness | Class 5, no change | ISO 105-A02 |
| Fungal growth | No growth | ASTM C1338-19 · Intertek |
| VOC and SVOC | Low emission | DIN EN 16516 · Fraunhofer |
| Cradle to Cradle | Certified Bronze, Full Scope | Certificate 12297 · v4.1 · to 6 Apr 2029 |
| Environmental product declaration | MRPI EPD — LCA to SBK, MKI A–D 0.24 c/m² | ISO 14025 |
| GBCA Responsible Products | Responsible Products Value 9 | Green Star · RPV† |
| Singapore Green Building Council | 3 Ticks | SGBC product certification |
| End of life | Wet the surface and the material lifts off by hand within 24 hours | — |
| Warranty | 5 years, performance and adhesion | Manufacturer |
What the Group Number covers. AWTA test 25-004810 was performed on Acospray DC — cellulose spray, grey, approx. 30 mm on 12 mm fibre cement sheet — so Group 1 applies to the sprayed systems: DC1, DC2 1.0, DC2 2.0 and DC3. Acoplaster F is a different build-up (30 mm bonded mineral wool with a 2 mm plaster coat) and that report does not cover it — it is classified B-s2,d0 to EN 13501-1, and a Group Number assessment should be requested where a project needs one. Green Line is the same sprayed systems in a post-consumer feedstock; request current data for the feedstock under consideration. Report sponsor: Acosorb International BV. Cradle to Cradle Certified® Bronze at Full Scope under certificate 12297, effective 7 April 2026 to 6 April 2029 — the Oman Grey colour option is excluded from that one certificate, so specify another colour where the project claims against it. The exclusion is specific to Cradle to Cradle: Oman Grey carries the same 100% recycled content as the rest of the range and is named in the manufacturer’s declaration. † The Green Building Council of Australia assigns a Responsible Products Value; it does not certify products — the value is what a Green Star project claims against, not a product certification. Acoplaster F is classified B-s2,d0 rather than B-s1,d0.
Twelve standard colours. Or yours.
Beyond the standard range, pigment goes into the binder and the palette follows your scheme — NCS, RAL or a physical reference. The acoustic performance does not change with the colour.
Acospray DC3 — eight standard colours
Green Line — four post-consumer colours
Acoplaster F and DC1 are supplied in White. DC2 1.0 adds Cool Grey, ILA Grey, Oman Grey* and Black; DC2 2.0 adds Cool Grey and ILA Grey. Colour photography: Acosorb International. * Oman Grey is excluded from the Cradle to Cradle certificate only — its recycled content is the same 100% as every other colour.