sheep wool soundproof board,soundproof material

1. KPS soundproof board is made of wool fiber 2. It is free of formaldehyde 3. Perfect human comfortableness

1. Material: natural sheep wool and jute fiber

2. Performance of KPS soundproof board: Perfect sound absorption and thermal insulation, decoration performance

3.Decoration performance: the color is natural and orginal, it is harmonious with solid wood material

4. Superiority: Does not emit formaldehyde and other toxic gases, Perfect human comfortableness, Contributes to MR C4.1, MR C4.2, MR C6, EQ C3.2,and EQ C4.4 items of LEED

5.Density:20-120kg/m3

6.Areal density:1.0-4.0kg/m2

7.Standard size

      a.Length:1200mm/2400mm

      b. Width:600mm/1200mm

      c. Thickness:10-200mm

Note: the particular size can custom designed,but the length shall less than 3000mm and the width shall less than 2400mm.

8. Flammability: A class according to ASTM E84, B1 Class according to DIN4102, does not release toxic smoke, smoke density is very low

9. NRC value: up to 0.95 with 50mm back gap

10.Thermal resistance value(R value): larger than 1.25(m2.k)/W 

11.Application: cinema, theater, hotel, conference room, gymnasium, school, library, auditorium and so on.

Please find additional photos, color choices, installation information, etc. on our website.

12. Physical properties  of sheep wool thermal  acoustic board       

density (kg/m3)	permitted deviation of density %	thermal conductivity W/(m·k)		noise reduction coefficient  (NRC)
		average temperature 25oC±5oC	average temperature 70oC±5oC	Sticking on the ground	back cavity 50mm
32	±5	≤0.040	≤0.046	≥0.61 ≥0.82	≥0.401 ≥0.452
40		≤0.037	≤0.044
48		≤0.036	≤0.043
64		≤0.034	≤0.042		≥0.451 ≥0.552
80		≤0.033	≤0.041
1.the thickness is 30-50mm;      2.the thickness is bigger than 50mm.

Note: other specifications can be supplied by the agreement of the supplier and buyer.

13.   Sound Absorption Coefficient (NRC) of sheep wool thermal-acoustic board

density(kg/ m³)	norminal thickness        (mm)	test installation	frequency   (HZ)						NRC
			125	250	500	1000	2000	4000
40	50	sticking on the ground	0.33	0.76	0.97	0.90	0.82	0.66	0.85
		5cm back cavum	0.28	0.88	1.05	0.80	0.54	0.65	0.80

Note: Test method is GBJ 47-1983 Acoustics-sound-absorbing coefficient measurement by method of reverbration room.

sheep wool soundproof board,soundproof material