VL65 | Acoustic Membrane | VL65 Sound Insulation | Viscolastic Damping Sheet
Recycled content used in this product
VL-65 is a high mass, viscolastic acoustic damping membrane with the added advantage of improved low frequency performance over our other acoustic membranes. Internally reinforced with a micro fibreglass carrier for improved dimensional stability.
|Freq, f, Hz||50||63||80||125||250||500||1000||2000||4000||Rw|
Test Report Number: 130702/002
|VL-65 TECHNICAL DATA|
|Roll Size||5.5m x 1m|
|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 Rwof a stud partition, as shown below, by 6dB.
All information contained in these details is given in good faith but without warranty.