Manufactured in India, supplied in Patna
PET felt acoustic panels in Patna
We manufacture PET felt acoustic panels at our own plant at Palwal in Haryana, India, and supply them into Patna. Patna is building institutional space quickly, and almost all of it involves large rooms where a lot of people need to hear one person.
- Material
- 100% PET non-woven, no added binder
- Thickness
- 9, 12, 18 and 24 mm standard, tolerance plus or minus 5 percent
- Custom thickness
- 4 to 24 mm
- Panel size
- 1220 x 2440 mm standard, 4 x 8 ft
- Maximum size
- 2440 x 4270 mm, 2.44 x 4.27 m, 8 x 14 ft
- Lead time
- 4 to 7 working days for standard colours and thicknesses
- Minimum order
- From 10 panels
- ASTM C423
- Made at our own plant, Palwal, Haryana, India
- One batch across the order, no blending between runs
This comes from our own plant, not a trading desk. We do not have an office in your city and we will not invent one. What we can give you is factory pricing, consistent material and a technical answer before you commit.
01 / Start here
The product, described honestly, for a Patna brief
A rigid non-woven panel pressed from 100% polyester fibre, a large part of it recycled. It absorbs mid and high frequency energy and finishes as the visible surface, so it is both the acoustic layer and the finish.
Work reaching us from Patna is mostly coaching institutes and colleges, hospitals, government buildings, auditoriums, offices, hotels.
RC frame with brick infill and hard floors, in buildings that sit close together on narrow lanes.
- Direct to wall Panel bonded or mechanically fixed flat to the substrate. Simplest, and the weakest at low frequency.
- On a 25 to 50 mm air gap The same panel on battens. The air gap moves absorption down in frequency at no extra material cost, and is the cheapest improvement available.
- Over a porous backing Panel over mineral or PET backing where the room needs genuine low mid control.
- What it will not do It absorbs. It does not block.
Full specification
Thickness, density, NRC by frequency, fire class, standard sizes and build-up detail for PET felt panels are on the main product page. This page covers what that means for a project in Patna.
02 / Specification
One specification sheet, the same in every market
We publish one data sheet for every market. If a supplier quotes you a different figure for the same product in a different city, one of the two numbers is wrong.
- EchoCore 151500 GSM. Offices, classrooms, general commercial
- EchoPro 181800 GSM. Studios, auditoria, rooms with a written RT target
- EchoMax 222200 GSM. High occupancy and high level spaces
| Material | 100% PET non-woven, no added binder |
|---|---|
| Thickness | 9, 12, 18 and 24 mm standard, tolerance plus or minus 5 percent |
| Custom thickness | 4 to 24 mm |
| Panel size | 1220 x 2440 mm standard, 4 x 8 ft |
| Maximum size | 2440 x 4270 mm, 2.44 x 4.27 m, 8 x 14 ft |
| Density range | 1200 to 3600 GSM |
| NRC | 0.30 at 9 mm, rising with thickness and air gap |
| Test standard | ASTM C423 |
Consultants get the raw data, not a sales sheet. That is the whole of our side of the job, and it is set out under working with acoustic consultants.
03 / In this market
What the buildings in Patna do to the specification
- Rooms built for listening
Coaching halls and lecture rooms pack people into hard spaces. Intelligibility fails long before anyone describes the room as echoing.
- New institutional build
Concrete and tile put up quickly, with acoustics discovered at handover. Early drawings are worth more than extra material later.
- Medical privacy
Consult and counselling rooms where conversations have to stay in the room. Partition and door before panel.
- Two days by road
A manageable run, so freight is reasonable and samples arrive before the order is placed.
- School and campus buildings
Large government and private schools in concrete and tile with very large class sizes and open corridors.
Architects working in Patna usually need the build-up before the product. We will draw the section and mark what does the work. See how we support architects.
04 / Climate and durability
Why the climate in Patna changes the material, not the target
Patna is hot summers, mild winters and a distinct wet season, and that narrows the sensible material list before acoustics is even discussed.
PET felt handles the wet months without absorbing moisture or feeding mould. Timber and wood wool want a ventilated cavity and a stable indoor RH.
The risk we design against here is wet-season humidity behind linings.
Interior designers tend to arrive with the look already decided. We will tell you which finish gets there without losing the acoustics. See how we work with interior designers.
05 / Logistics
How material reaches a Patna site
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | two days |
| Dispatch | 2 to 4 working days |
| To site | two days |
| Packing | Palletised flat and film wrapped, cut sheets interleaved. Packing list and weights issued with the quote. |
| Lead time | 4 to 7 working days for standard colours and thicknesses. Grooved and custom colours take longer, and we say so before you order. |
Standard items dispatch in 2 to 4 working days from our plant at Palwal. Grooved panels and custom colours take longer, and we say so before you order, not after.
By road from Palwal, roughly ten hundred kilometres, normally two days on a dedicated truck.
From 10 panels for 9 mm EchoCore 15. Other grades and thicknesses carry their own minimum.
| 9 mm EchoCore 15, 1500 GSM | 10 panels, 320 sq ft |
|---|---|
| 9 mm EchoPro 18, 1800 GSM | 50 panels, 1,600 sq ft |
| 9 mm EchoMax 22, 2200 GSM | 100 panels, 3,200 sq ft |
| 12 mm, 2400 GSM | 30 panels, 960 sq ft |
| 18 mm, 3000 GSM | 50 panels, 1,600 sq ft |
| 24 mm, 3600 GSM | 50 panels, 1,600 sq ft |
A panel is 1220 x 2440 mm, which is 32 sq ft.
06 / Worth knowing
Four honest warnings before you buy
-
The wrong product for the problem
It absorbs. It does not block. A PET panel on a shared wall will make the room sound better and will not stop the neighbour being heard. If the brief is stopping noise passing through a wall or floor, the answer is mass and decoupling, and we will say so before quoting.
-
Square footage quoted before the room is understood
Anyone can price a wall. Working out how much material the room actually needs usually reduces the order, which is why not everyone does it.
-
Local approvals that nobody actually holds
We hold no Patna certification and we will not borrow one. The test data we publish is ours, and we will send the reports rather than describe them.
Patna: questions we are actually asked
Do you manufacture PET felt acoustic panels in Patna?
No, and we will not say otherwise. We manufacture at our own plant at Palwal in Haryana, India, and supply into Patna as the manufacturer rather than through a dealer. Patna is building institutional space quickly, and almost all of it involves large rooms where a lot of people need to hear one person. You buy at factory prices with one consistent batch across the order.
What decides the specification for a Patna project?
Coaching halls and lecture rooms pack people into hard spaces. Intelligibility fails long before anyone describes the room as echoing. Concrete and tile put up quickly, with acoustics discovered at handover. Early drawings are worth more than extra material later. Those two things move the build-up far more than the panel figure does.
Will this material last in the Patna climate?
Patna is hot summers, mild winters and a distinct wet season. PET felt handles the wet months without absorbing moisture or feeding mould. Timber and wood wool want a ventilated cavity and a stable indoor RH. The failure we design against here is wet-season humidity behind linings.
How does an order actually travel to Patna?
made at: Our own plant, Palwal, Haryana, reaches site in: two days, dispatch: 2 to 4 working days. Standard items dispatch in 2 to 4 working days from our plant at Palwal. Grooved panels and custom colours take longer, and we say so before you order, not after.
What will PET felt acoustic panels not do?
It absorbs. It does not block. A PET panel on a shared wall will make the room sound better and will not stop the neighbour being heard. If the brief is stopping noise passing through a wall or floor, the answer is mass and decoupling, and we will say so before quoting.
What quantity do we have to order, and in what packaging?
From 10 panels for 9 mm EchoCore 15. Other grades and thicknesses carry their own minimum. 9 mm EchoCore 15, 1500 GSM, 10 panels, 320 sq ft. 9 mm EchoPro 18, 1800 GSM, 50 panels, 1,600 sq ft. 9 mm EchoMax 22, 2200 GSM, 100 panels, 3,200 sq ft. 12 mm, 2400 GSM, 30 panels, 960 sq ft. 18 mm, 3000 GSM, 50 panels, 1,600 sq ft. 24 mm, 3600 GSM, 50 panels, 1,600 sq ft. A panel is 1220 x 2440 mm, which is 32 sq ft. Palletised flat and film wrapped, cut sheets interleaved. Packing list and weights issued with the quote.
Next step
Tell us the room, we will tell you the build-up
A plan and a section is enough. We will come back with a build-up, a BOQ and a delivered date, and we will say so if what you are asking for will not work.