BASWA Phon Classic Fine

Name: BASWA Phon Classic Fine
Brand: BASWA acoustic AG

NRC 0.75–0.95

EPD availableCeilingWall

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Manufacturer

BASWA acoustic AG

BASWA acoustic AG, Marmorweg 10, 6283 Baldegg (Canton of Lucerne), Switzerland, has been making seamless acoustic systems for more than 30 years, with production in Baldegg. Its subsidiary BASWA acoustic Deutschland GmbH is based in Düsseldorf; in North America the systems are supplied through BASWA acoustic North America in Cleveland, Ohio, and worldwide through partners. Acoustic panels are bonded or fixed and coated with microporous plasters made with marble sand, so the finished ceiling or wall looks like plaster. The system families are BASWA Phon (glass wool panel), BASWA Natural (hemp fiber panel), BASWA Basic (panel of expanded recycled glass granulate), BASWA Cool (with integrated capillary tubes for heating and cooling), BASWA Core (for concrete core activation) and BASWA DTG (fixed directly to a metal grid), with the finishes Base, Fine and Top as well as Casual and One. The systems are installed only by applicators trained and certified by BASWA, and a cleaning, repair and renovation concept covers the surfaces.

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Documents

EPD LEED documentation Declaration of Performance BASWA Phon Test Data Sheet BASWA Phon (US)Fire behaviour BASWA Phon Classic Planning documents BASWA Phon (EN)Emissions test Indoor Air Comfort GOLD System Data Sheet BASWA Phon Classic Fine (US)Product datasheet BASWA Phon acoustic panel (EN)

Description

BASWA Phon Classic Fine is a seamless two-coat acoustic plaster system. BASWA Phon glass wool acoustic panels are bonded to the ceiling or wall, sanded flat and coated with a BASWA Base base coat and a BASWA Fine finish coat, both microporous acoustic plasters made with marble sand. The finished surface looks like a smooth plastered ceiling or wall. The second coat evens out the surface, so the system is used where light grazes the surface and on curved shapes. BASWA Fine gives a finer, smoother surface than BASWA Base and can be left smooth or individually textured. For ceilings and walls, vaults, domes, convex, concave and organically shaped surfaces, including humid rooms, weather-protected outdoor areas and the refurbishment of historic buildings.

Technical data

Material: Glass wool panel pre-coated with recycled glass, 31 × 24 in

Surface: Finish coat BASWA Fine on BASWA Base, grain size 0.02 in, surface quality Q2 to Q3

Flame spread class (ASTM E84): Class A

Certifications: EPD, ETA-16/0144, Indoor Air Comfort GOLD, VOC class A+, LEED compliant

Colours: Standard color NCS S 0500-N; whiteness 91 %; unlimited choice of colors (RAL, NCS, etc.)

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 8 variants

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NRC

0.80

Frequency values

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Compare		Value
	Suspension 7.9 in	NRC0.80
	Directly on the substrate, no cavity	NRC0.75

Test report: 17161

NRC: 0.80 (derived from ISO 354 lab data)

Institute: Sound Research Laboratories, Sudbury (UK)

Measurement date: 09/27/2023

Room volume: 10,598 cu ft

Object area: 116 sq ft

Measured values as a table (8 measurements)

BASWA Phon Classic Fine: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-up	NRC	100 Hz	125 Hz	160 Hz	200 Hz	250 Hz	315 Hz	400 Hz	500 Hz	630 Hz	800 Hz	1000 Hz	1250 Hz	1600 Hz	2000 Hz	2500 Hz	3150 Hz	4000 Hz	5000 Hz
1.2 in · Directly on the substrate, no cavity	0.75	0.02	0.10	0.24	0.24	0.31	0.61	0.80	0.94	0.97	0.99	0.96	0.93	0.89	0.83	0.75	0.69	0.64	0.62
1.2 in · Suspension 7.9 in	0.80	0.18	0.39	0.24	0.41	0.48	0.42	0.59	0.84	0.92	0.91	0.97	0.91	0.87	0.86	0.83	0.78	0.70	0.69
1.6 in · Directly on the substrate, no cavity	0.85	0.37	0.23	0.30	0.59	0.74	0.85	0.84	0.90	0.83	0.84	0.88	0.86	0.89	0.79	0.73	0.75	0.79	0.66
1.6 in · Suspension 7.9 in	0.80	0.36	0.45	0.60	0.57	0.57	0.86	0.88	0.92	0.99	0.99	0.85	0.86	0.91	0.83	0.97	0.91	0.71	0.84
2 in · Directly on the substrate, no cavity	0.90	0.11	0.25	0.34	0.54	0.91	0.97	0.96	1.07	1.01	1.00	0.87	0.86	0.85	0.81	0.78	0.70	0.65	0.63
2 in · Suspension 7.9 in	0.85	0.15	0.52	0.49	0.61	0.56	0.77	0.88	0.99	1.05	0.94	0.91	0.87	0.85	0.84	0.82	0.76	0.70	0.67
2.8 in · Directly on the substrate, no cavity	0.95	0.31	0.35	0.44	0.82	1.01	0.99	0.93	0.98	0.96	0.90	0.88	0.85	0.84	0.83	0.82	0.76	0.73	0.72
2.8 in · Suspension 7.9 in	0.90	0.30	0.59	0.61	0.72	0.87	0.89	0.95	1.05	1.01	0.90	0.92	0.89	0.86	0.84	0.83	0.80	0.73	0.72

Measured values as a table (8 measurements)

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Last updated: 11/03/2026

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