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acoustic panel material

Damping Sound Insulation Panel W-25G

Constrained-layer damping: inorganic boards + polymer damping interlayer · Model W-25G (also W-20G)
Fire: Difficult-burning B1 (oxygen index ≥ 32%)

Table of Contents

Description

Damping Sound Insulation Panel W-25G

Acoustic damping panels use high-density inorganic materials combined with sound insulation materials and additional polymer intermediate damping compounds. The highly-damping constrained layer impedes the transmission of damping vibration, and the reduction in sound transmission of the sound insulation board will sound decrease the loss in the gap of the degrees of separation.

Key features

  • Constrained-layer damping: inorganic boards + polymer damping interlayer
  • Model W-25G (also W-20G)
  • 1220 × 2440 mm; thickness 16 / 16.2 / 11 mm
  • Oxygen index ≥ 32% (GB/T 2406.2-2017, difficult-burning B1)

Material specifications

PropertyValue
NameDamping sound insulation panel
StructureBasic magnesium板材 / glass-magnesium board + glass-magnesium board + damping interlayer
SubstrateMagnesium oxide board (MgO board)
Fire behaviourOxygen index ≥ 32% (GB/T 2406.2-2017) — difficult-burning B1
ModelW-25G / W-20G
SpecificationLength 1220 mm, width 2440 mm; thickness 16 / 16.2 / 11 mm

Where it is used

Equipment rooms, office spaces, KTV, hotel rooms, HIFI listening rooms, leisure clubs and other places that need to improve the wall and ceiling sound insulation volume.

Ordering & delivery

ItemDetail
Minimum order quantityQuoted per project — door sets are made to the opening schedule
Production lead time15–25 working days from order confirmation
PackagingCrate, frame protected with timber battens
Container loading20′ GP ≈ 60 door sets
TermsEXW Shanghai · FOB Shanghai · CIF on request
Payment30% deposit with order, balance against B/L copy by T/T; L/C at sight on request

Certification & test data

  • Fire behaviour: oxygen index ≥ 32% (GB/T 2406.2-2017, difficult-burning B1)
  • Sound absorption: ISO 354 reverberation-room measurement; third-octave coefficients published above.
  • Chain of custody: FSC® CoC (FSC-STD-40-004 V3.1), certified by RINA and held in the name of Shanghai MST Industrial Co., Ltd. — valid to 11 November 2027.

Component test reports are issued to our manufacturing partners rather than to MST. Authorised copies, including laboratory and certificate numbers, are released with every quotation.

Samples

A door-leaf section sample with the full ironmongery set is despatched free of charge within 7 working days.

Talk to us about your project

Email your drawing, panel schedule or a square-metre count to sales@mstacoustics.com, or send the enquiry form on this page. We reply within one working day with pricing, lead time and freight options. Datasheets, colour charts and installation guides are collected in our technical resources library.

Frequently asked

W-25G or W-20G?
The grades differ in areal density and damping layer build-up — selection follows the target sound reduction; we advise per partition.

How is it fixed?
Screwed to studs with staggered joints and sealed perimeters; detail issued with the order.

Does it replace mass?
It complements mass — the damping layer kills coincidence dip that plain board suffers.

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