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Hourglass Block
Time flies while you’re having fun. Based on Eva’s ‘Hourglass’ Space Dividers, the more rectilinear shapes nest together to fill a wall with color and gentle, geometric zigzag patterning. Available in over sixty colors of 100% Wool Design Felt mounted to a high-performing acoustic substrate, the modular tiles install easily with heavy-duty construction adhesive while providing sound absorption and natural texture.
About
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About
Exploded AxonometricNot to scale
Hourglass Block
Wall Surface
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Standard Size
ElevationScale: 3" = 1'-0"
1'-0
" (30
.5 c
m)
1'-0" (30.5 cm)
Plan Detail at EdgeScale: 6" = 1'-0"
3/8" (10 mm) Acoustic Substrate (Color: 02 Medium Grey)
3mm Design Felt (Color as specified)
1/2"
(1.3
cm
)
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Suggested Configurations
2-Color PatternCode: FF-EZ-HOUR-001
3-Color PatternCode: FF-EZ-HOUR-002
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Suggested Configurations
4-Color PatternCode: FF-EZ-HOUR-003
4-Color PatternCode: FF-EZ-HOUR-004
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Specifications
Designer Eva Zeisel
Name Hourglass Block
Content 100% Wool Design Felt + Akustika 10 Substrate
Tile Thickness 1/2 in (13 mm)
Tile Size 1'-0" x 1'-0" (30.5 x 30.5 cm)
Thickness Tolerance ±1/16 in (2 mm)
Durability Contract or residential
Maintenance Vacuum occasionally to remove general air-borne debris. Should soiling occur, spot clean with mild soap and lukewarm water. Avoid aggressive rubbing as this can continue the felting process and change the surface appearance of the felt. Refer to 100% Wool Design Felt Maintenance + Cleaning for detailed care instructions.
Lead Time Made to order and certain lead times will apply
Environmental 100% Wool Design Felt is 100% biodegradable and Akustika 10 Substrate is 100% recyclableContains no formaldehyde, 100% VOC free, no chemical irritants, and free of harmful substances 100% Wool Design Felt contributes to LEED©
Design Tool A Design Tool is available to assist in the design of Block tiles. This tool allows patterns to be configured and is available at: dt.filzfelt.com
Installation Tiles attach to a wall surface using a heavy-duty construction adhesive and may be trimmed to size with a utility knife.
Custom Standard pricing applies to standard size and shape only—other sizes, shapes, and mounting options must be quoted. 5mm felt available with a 10% upcharge.
Variation Wool felt is a natural material and color variation and inclusions of natural fiber on the surface are evidence of the 100% natural origin of the material. Product color is only indicative, as it is not possible to assure consistency of color in a natural product due to the natural color of raw wool and absorption of dyes. Color matching cannot be guaranteed on shipments and variation will be more pronounced beyond the normal commercial range.
Acoustics ASTM C 423: NRC – 0.50, SAA – 0.51
Colorfastness to Light Class 4–5 (40 hours)
Colorfastness to Crocking Class 3–4 (wet), Class 4–5 (dry)
Environmental Oeko-Tex© Standard 100 Certified Product Class II (100% Wool Design Felt + Akustika 10 Substrate)Meets VOC test limits for the CDPH v1.2 method (100% Wool Design Felt + Akustika 10 Substrate)
Flammability Test reports available upon request
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116
170
231
284
378
124
173
242
286
384
125
175
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300
131
179
308
136 180
200
150 100
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201102
331
203105
156
255 265269272
274
343
209
110160
282
377
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497503
385
534
423
548
425
613
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626
437
686
467
713
476
732
190
345
411
533
448
408
415
220
540
Standard Felt Colors
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160
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315
400
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630
800
1000
1250
1600
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3150
4000
5000
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Acoustic
Sound Absorption Results
Soun
d Ab
sorp
tion
Coeffi
cient
(Sab
ins
/ ft2 )
Frequency (Hz)
Hourglass Block Test ReportThe test report quotes the frequency dependent sound absorption data as well as the single number ratings. Data taken from Test Report NGC 4017035 conducted by NGC Testing Services.
Complete test results are available upon request.
Frequency (Hz)
Sound Absorption Coefficient
(Sabins / ft2)
100 0.05
125 0.02
160 0.03
200 0.10
250 0.20
315 0.31
400 0.44
500 0.51
630 0.56
800 0.61
1000 0.65
1250 0.66
1600 0.68
2000 0.67
2500 0.68
3150 0.66
4000 0.69
5000 0.73
SAA = 0.51NRC = 0.50
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