Manufactured in India, supplied in Diu
PET felt acoustic panels in Diu
We manufacture PET felt acoustic panels at our own plant at Palwal in Haryana, India, and supply them into Diu. Diu is a small coastal tourism market where salt air and a fixed season decide almost everything.
- 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
Manufacturer, not reseller. We hold no local approvals and will not imply we do. You get the price the factory quotes, material that matches across a large order, and advice that sometimes talks you out of a purchase.
01 / The product
What you are buying, and what it fixes in Diu
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 Diu is mostly hotels and guest houses, restaurants and bars, heritage properties, offices, clinics.
RC frame housing and worker accommodation with hard floors, close to industrial estates.
- 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 Diu.
02 / Specification
One specification sheet, the same in every market
These figures are published and they do not move. The thing worth arguing about is not the number on the sheet, it is which grade and which build-up suits the room you are treating.
- 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 |
Where a consultant is already engaged on a Diu project, we supply to their specification and send the test reports rather than describing them. More on working with acoustic consultants.
03 / On the ground
The Diu conditions that change the answer
- Salt air is relentless
PET felt does not absorb moisture, rot or corrode. On an exposed coast that is the whole material selection argument.
- Season dates are fixed
Work has to finish before the season opens. Real dispatch and transit dates matter more than a marginally better price.
- Heritage stone buildings
Thick masonry with hard finishes that hold sound for a long time, and a structure that usually cannot be altered.
- Sensible quantities
A small market does not need a full container. We would rather quote a part load that works.
- School and campus buildings
Classrooms are concrete and tile with bare walls and high ceilings, and class sizes push levels up. Corridors act as reverberation chambers that feed every room off them.
For a Diu practice, the useful thing is a detail you can put in a drawing set, not a brochure. See how we support architects.
04 / Climate
The Diu climate decides the material list
Diu 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 / Getting it there
Supply into Diu, start to site
| Made at | Our own plant, Palwal, Haryana |
|---|---|
| Reaches site in | three days |
| Dispatch | 2 to 4 working days |
| To site | three 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 twelve hundred and fifty kilometres, normally three 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 / Before you buy
Where this goes wrong, said plainly
-
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.
-
A number chased without a measurement
If nobody has measured the room or set a target, the specification is a guess with a decimal point in it. We will ask for the target before we quote the quantity.
-
Local approvals that nobody actually holds
We hold no Diu certification and we will not borrow one. The test data we publish is ours, and we will send the reports rather than describe them.
Diu: questions we are actually asked
Where are the PET felt acoustic panels you supply to Diu actually made?
No, and we will not say otherwise. We manufacture at our own plant at Palwal in Haryana, India, and supply into Diu as the manufacturer rather than through a dealer. Diu is a small coastal tourism market where salt air and a fixed season decide almost everything. You buy at factory prices with one consistent batch across the order.
Why would a Diu build-up differ from anywhere else?
PET felt does not absorb moisture, rot or corrode. On an exposed coast that is the whole material selection argument. Work has to finish before the season opens. Real dispatch and transit dates matter more than a marginally better price. Those two things move the build-up far more than the panel figure does.
How does the Diu climate affect this product?
Diu 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.
What is the delivery time into Diu?
made at: Our own plant, Palwal, Haryana, reaches site in: three 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
Drawings in, BOQ and a delivered date out
One drawing gets you a proper answer. Build-up, quantities, a delivered date, and an honest note on anything we think is the wrong approach.