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Absorption + insulation
TECSOUND FT
Membrane + absorption felt composite | all-in-one
Composite
Felt + membrane
Rw 28 dB
FT 75 (membrane)
ΔLw 22 dB
Impact (FT 75)
12–14 mm
Total thickness
About TECSOUND FT
TECSOUND FT combines a porous absorption felt with the high-density TECSOUND membrane, addressing both sound insulation and absorption in a single composite.
It suits the acoustic design of walls and ceilings. The range is FT 40 / FT 55 / FT 75 (12–14 mm), plus the duct-oriented FT 55 Alu with an aluminium-foil facing.
Applications
Wall cavities
Insulation + absorption together
Ceilings
Controls reverberation and transfer
Machinery enclosures
All-in-one acoustic lining
Plant rooms
Reduces equipment noise
Key Features
Composite construction
Porous felt bonded to the high-density TECSOUND membrane.
Dual function
Sound insulation and absorption in one product.
Impact + airborne
FT 75: membrane Rw 28 dB and impact ΔLw 22 dB; also used in floor build-ups.
Duct variant
FT 55 Alu adds an aluminium-foil facing for pipework and ducts.
Technical Data
ConstructionPorous felt + TECSOUND membrane
RangeFT 40 / FT 55 / FT 75 (+ FT 55 Alu)
Surface mass · thickness4–7.5 kg/m² · 12–14 mm
FT 75 performanceRw 28 dB · ΔLw 22 dB
Documents
Find datasheets (TDS), safety data sheets (SDS), certificates and catalogs — including official SOPREMA documents — in our Resources center.
Browse ResourcesKorean accreditation in progress
Official Korean floor-impact certification underway
Accredited testing for Korea’s floor-impact-noise insulation grade is planned for the SOPREMA floor-impact solution (VELAPHONE/TEXFON underlay and floor systems). Official Korean grade reports will be published here once available.
View Korean grade standardsConsidering TECSOUND FT?
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