Sorba-Glas® Composites

Quilted Noise Absorbers and Mass-Loaded Flexible Barriers Combined

Any INC flexible barrier may be used in a Sorba-Glas® barrier/absorber composite. INC noise control composite materials achieve superior acoustical performance by combining two basic noise reduction strategies in a single product. An INC mass-loaded flexible noise barrier is permanently laminated to one of our Sorba-Glas absorbers to create a material that both blocks and absorbs noise.

Naturally, all the great features of our Sorba-Glas quilted noise absorber are also found in the composite material – excellent acoustical performance, a tough facing that is impervious to water, oils, dust, dirt and airborne contaminants and meets ASTM E84 Class I fire rating.

Any of the INC Flexible Noise Barrier materials can be used with any absorber to meet most application requirements.

Sorba-Glas Product Features

Absorber component has a tough, highly abrasion resistant quilted facing impervious to water, dust, oils grease, airborne contaminants, and most solvents
Absorber component meets ASTM E84 Class I fire rating
Sorba-Glas quilted noise absorber is permanently laminated to the barrier component
Mass-Loaded vinyl barriers are available in a variety of weights, and in polyester-reinforced and non-reinforced versions

Sorba-Glas Material Applications

A Sorba-Glas noise control composite is the best choice for any situation where a flexible material that both blocks and absorbs noise is desired, where an extremely tough facing on the absorber component is required, or in applications where an ASTM-E84 Class I fire rating is desired.

Sorba-Glas composites are used for a wide variety of situations - most commonly to create track-mounted or wall mounted noise curtain walls, and to add acoustical properties to any sort of structure such as an existing equipment room, an OEM machine cabinet or guard.

Sorba-Glas "septum" curtain panels (noise barrier sandwiched between two layers of Sorba-Glas) are an excellent choice for creating acoustical partitions above suspended ceilings effectively extending hard partitions above suspended ceilings to greatly reduce cross talk.

Sorba-Glas Product Selection Tips

Select poly-reinforced (P) vinyl barriers in situations where the vinyl will be physically stressed in any way- for example when hanging panels vertically from hooks, or in situations where the vinyl will undergo repetitive contact.
Select non-reinforced (N) vinyl barriers when the vinyl will not be physically stressed, such as to line an equipment cabinet or wrapping ducts or pipes.
Select lighter density barriers for general use, where lighter overall weight is desired, or for open-top enclosures or partial barriers.
Select heavier density barriers for greater noise level reduction.

Acoustical Performance and Roll Dimensions

Standard Sorba-Glas Composite Styles - Acoustical Data

Composite Style	Barrier	Absorber	STL, by Octave Band Frequency (Hz)						STC	NRC
Composite Style	Barrier	Absorber	125	250	500	1000	2000	4000	STC	NRC
Barrier / 1” Absorber
115-N/P-25/50	1/2 LB Vinyl	1” Quilted	12	13	16	21	27	32	21	0.75
117-N/P-25/50	3/4 LB Vinyl	1” Quilted	13	15	18	23	30	34	23	0.75
111-N/P-25/50	1 LB Vinyl	1” Quilted	15	16	21	26	33	38	26	0.75
Barrier / 2” Absorber
215-N/P-25	1/2 LB Vinyl	2” Quilted	16	17	20	25	31	36	25	0.80
217-N/P-25	3/4 LB Vinyl	2” Quilted	15	17	20	25	33	39	25	0.80
211-N/P-25	1 LB Vinyl	2” Quilted	17	18	23	28	35	40	28	0.80
1” Absorber / Barrier / 1” Absorber
225-N/P-S-25	1/2 LB Vinyl	2” Quilted	18	19	22	27	33	38	27	0.75
227-N/P-S-25	3/4 LB Vinyl	2” Quilted	17	19	22	27	35	41	27	0.75
221-N/P-S-25	1 LB Vinyl	2” Quilted	18	19	24	29	36	41	29	0.75
2” Absorber / Barrier / 2” Absorber
425-N/P-S-25	1/2 LB Vinyl	2” Quilted	18	19	22	27	33	38	27	0.80
427-N/P-S-25	3/4 LB Vinyl	2” Quilted	17	19	22	27	35	41	27	0.80
421-N/P-S-25	1 LB Vinyl	2” Quilted	19	20	25	30	37	42	30	0.80

Notes:

All composites are sold in rolls 54" wide.
Select "N" for non-reinforced vinyl barrier.
Select "P" for polyester reinforced vinyl barrier.
Select "25" for 25' long half-roll (provides 112.50 ft² of material).
Select "50" for 50' long full roll (provides 225 ft² of material).

Other Noise Control Materials:

Flexible Noise Barriers
K-Foam
Convoluted Foam
Sorba-Glas Quilted Noise Absorber
HVAC Duct Liner
K-Foam Composites

Questions? Your INC Sales Engineer is ready to provide answers, planning help, application tips — whatever you need! Call us at 1-800-954-1998, send Email, or fill out a Request For Quotation — whatever is easiest for you.