Acoustic Sonus Multi (4515) Sonus Multi 4.5mm (4515)
(NZ Stock)

Tough, durable acoustic underlay designed to reduce impact sound from footfalls and suitable for installation under Wood, Laminate and Tiles (4.5mm thickness), and suitable for installation under Vinyl sheet (3mm thickness). Made of PUR-bound cork particles and PUR foam. Can be glued down or floated over subfloor, with a high load bearing capacity and resistant to aging and deformation.

Thickness (2)


Masterspec 6813J
NZ Stock Yes
Style Rubber Underlay
Finish/Texture Matt
Shape Roll
Length 20m
Width 1m
Thickness 4.5mm
Weight 1.96kg
Sales Unit SQM
Acoustic Performance Approx. 17dB ISO 140
Surface Treatment Selected rubber granules bound with polyurethane
Water Resistant False
Chemical Resistance Good
Stain Resistance Poor
Thermal Resistance Good
UV Stable False
Composition PUR foam and cork, bound with polyurethane
Laying Direction Same Direction
VOC 2.3 mg/m2/hr ASTM D5116
Durability Rating: Industrial Heavy Duty
Durability Rating: Commercial Extra Heavy Duty
Wheelchair Friendly Yes
Warranty 5 Years
Eco-labels GECA

Silent Shield Acoustic Underlay

Silent Shield is a high density, 2mm thick, underlay suitable for floating wood, bamboo and laminate floors. It provides good impact sound insulation, reduces vapour transmission and absorbs moderate unevenness in the subfloor.