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Acoustic Membrane VL65

Acoustic Membrane VL65
Acoustic Membrane VL65
Product Code: A121
Availability: In Stock
Download Description: For Registered Users Only
Price: £39.95

6 or more £38.35
11 or more £36.75
16 or more £35.16
21 or more £33.56
26 or more £31.96
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 VL65 High Performance Acoustic Membrane


Recycled contect used in this product

 

Features
  • Easy to use, cut and trim
  • Supplied in roll form: 5.5m x 1m
  • Airborne noise reduction
  • Very high acoustic performance
  • Visco-elastic
Benefits
  • Improved low frequency performance
  • Self-adhesive version available
  • Also acts as a VCL

 

Product description

VL-65 is a high mass, visco-elastic acoustic damping membrane with the added advantage of improved low frequency performance over our other acoustic membranes. It is internally reinforced with a micro fibreglass carrier for improved dimensional stability.

Applications

  • Soundproofing against airborne noise in floors, walls and ceilings when used in conjunction with other low surface density materials.
  • VL-65 is acoustically equivalent to lead of the same surface weight.
  • When bonded between stiff rigid sheet materials it greatly reduces the resonance and coincidence dips.
  • Stapled over frameworks it greatly improves the performance of lightweight partitions.
  • When bonded to resonating metal panels it greatly reduces vibration and re-radiated noise.
  • Offers high acoustic performance when combined with sound absorbent materials.
  • Can be used for damping of impact noise caused by atmospheric agents on metal deck roofs.

Acoustic Performance

Freq, f, Hz, 50 63 80 125 250 500 1000 2000 4000 Rw
R. (dB) 17.5 18.7 10.9 17 21 24 29 34 39 28
Test Report Number: 130702/002

 

Technical Data

VL-65 Technical Data
Density 1.9g/cm(+/-0.05)
Colour Black
Weight 6kg/m2
Thickness 4mm
Fire Resistance >B,s1,d0 when used in partitions as shown below
Water Vapour resistance (µ) 50000
Maximum tensile strength 350 ±150 / 250 ± 100 EN 12311-1
Elongation ±45 EN 12311-1
Cold Flexibility -10°C; EN1109
High Temperature flow resistance 120°C; EN1110

 

VL-65 eliminates the coincidence dip around 2.5kHz found in rigid sheet materials such as plasterboard on studwork by 12dB.

The tests below show standard studwall constructions with and without VL-65 sandwiched between the sheets.

The low frequency resonance dip at around 160Hz is reduced by 8dB.

This superb material will improve the overall averaged Rof a stud partition, as shown below, by 6dB.

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