Perfopan
Microustic® MICRO 4x4x1 PR10%
Microustic® MICRO 4x4x1 PR10% is a Perfopan micro-perforated wood panel with Ø1mm front holes and a 10% open area, twice that of the PR5% model. Perfopan's data sheet gives NRC 0.75 without mineral wool and NRC 0.80 with it, at a 200mm mounting depth. It suits busy open-plan offices, canteens and multi-use halls where the room needs more absorption from the same wall area.
The 18mm MDF board is drilled from both faces, backed with Soundtex black glass tissue and fixed on an aluminium profile. With 50mm mineral wool Perfopan rates it absorption class B. The hole pitch is confirmed from the data sheet at specification. Finishes are wood veneer, HPL or lacquer to a RAL colour.
Not sure what your space needs? We can survey it or quote for supply and installation.
Ø1mm holes, 10% open area
NRC 0.80 with mineral wool, class B
Veneer, HPL or RAL lacquer finish
- Front holes: Ø1mm
- Hole pitch: confirmed from the data sheet at specification
- Perforated area: 10%
- Perfopan code: MICRO 4x4x1 PR10% DS 128,000
- Board: 18mm MDF, standard or fire-resistant
- Back face: Soundtex black glass tissue
- Mounting: aluminium profile
- Finishes: wood veneer, HPL or lacquer to a RAL colour
Sound absorption: NRC 0.75 without mineral wool; NRC 0.80 with 50mm, 50 kg/m³ mineral wool
Absorption class: C without mineral wool; B with mineral wool
Mounting: aluminium profile; values tested at 200mm mounting depth
Front holes: Ø1mm, 18mm deep, 10% perforated area
Hole pitch: confirmed from the data sheet at specification
Rear holes: confirmed from the data sheet at specification
Board reaction to fire: D-s2,d0 (18mm standard MDF), B-s2,d0 (18mm fire-resistant MDF)
Weight: 13.45 kg/m² (standard MDF), 14.60 kg/m² (fire-resistant MDF)
Sizes (mm): 512 × 1390, 672 × 1390, 512 × 2780 and 672 × 2780 in standard or fire-resistant MDF; 576 × 1800 and 576 × 3640 in standard MDF only (576 × 3640 not in veneer)
Similar acoustic products
Where it works, fire rating and fitting
Your product questions, answered, for UK schools, offices and venues.
It suits open-plan offices, canteens and multi-use halls that need more absorption from the wall area available. Our acoustician checks the coverage against the room's RT60 target, and against BB93 for a school, at the survey.
Perfopan's data sheet gives D-s2,d0 for the standard 18mm MDF board and B-s2,d0 for the fire-resistant MDF board. We check the chosen board and finish against your building's fire strategy before anything is ordered.
Perfopan's documents do not agree on the pitch for this model, so it is confirmed from the data sheet at specification. The figures that are consistent are the Ø1mm front holes and the 10% perforated area.
Panels fix on an aluminium profile, and the depth of the cavity behind affects the result; Perfopan tested at 200mm. Our installation team confirms the substructure at the survey and sets out the panels on site.
Samples are available on request; allow a few working days. Quantities come from the room's size, finishes and use at the free site survey, which gives a quotation and an AI-assisted acoustic report. Before-and-after acoustic measurement is available as a paid add-on.
Too noisy? Let's talk silence.
Book a FREE site survey, and an acoustician will tell you exactly what your space needs. Rather talk first? Call +44 1908 880191.












