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ACOUSTIC
Sound and vibration dampening adhesive
Product Description
StarFix ACOUSTIC is a two-component, sound and vibration damping, adhesive formulated for the bonding of steel raised access flooring pedestals to concrete. StarFix ACOUSTIC is specially formulated to provide a sound and vibration damping effect by forming a viscoelastic layer between the pedestal and the substrate. StarFix ACOUSTIC does not contain solvents, is zero VOC and has the added benefits of excellent adhesion performance and low temperature cure properties.
Attributes & Benefits
❶ Superior adhesive properties
Excellent adhesion to concrete & steel.
❷ Reduces vibration and noise
Tried & tested formulation provides excellent sound reduction.
❸ Zero VOCs & odours
Does not contain any volatile organic compounds.
❹ Flexible, low foam formulation
Ensures a solid bond that does not rely on foaming to gap fill.
❺ Wide range of temperatures for application
Can be used from temperatures as low as -5°C up to 30°C.
Acoustic Performance
Standard: Airborne sound insulation was measured to BS EN ISO 140-4: 1998 ‘Field measurements of airborne sound insulation between rooms following the procedures in SRL document TP25. (Minimum value = 45) (StarFix ACOUSTIC = 53) (Test report = c/41027/R01)
Standard: Impact sound insulation was measured to BS EN ISO 140-7: 1998 ‘Field measurements of impact insulation of floors’ following the procedures in SRL document TP26.
(Maximum value = 60) (StarFix ACOUSTIC = 39) (Test report = c/41027/R01)
Application Instructions
StarFix ACOUSTIC is supplied in a 20-litre plastic bucket. This bucket contains a metal tin of adhesive (Part ‘A’) and loose acoustic filler granules (Part ‘B’).
Remove the lid from the bucket and then remove the tin from the bucket. The acoustic filler granules should be left in the bucket. The bucket will be used for mixing the components.
Remove the lid from the metal tin.
Pour the contents of the tin (the adhesive) into the bucket which already contains the acoustic filler granules. Use a flat metal blade (such as a palette knife) to scrape any residual adhesive from the edges and bottom of the tin.
(Note: Do not reseal the tin. Any residual adhesive remaining in the tin should be allowed to cure before disposal.)
Using a low-speed, high-torque drill with a helical paddle, (see ‘Equipment’) mix the two components for a minimum of 120 seconds or until the acoustic filler granules have been evenly coated and distributed into the adhesive.
Once mixed, there are two methods of applying the adhesive:
❶ Using a pallet knife or filling knife, scoop adhesive from the bucket and apply it directly to the base of the pedestal.
❷ Using a gauging trowel or filling knife, scoop adhesive from the bucket and apply it directly to the concrete on the pre-marked pedestal locator.
Each pedestal requires between 90g and 110g of adhesive (approximately 65 pedestals per kit).
Cure Time
The time taken to achieve full cure can be reduced in cold temperatures (<10°C) and dry air or increased in warm temperatures (>20°C) and humid air. These varied conditions will not affect the initial rate of cure (front-end cure), and the adhesive will remain in a workable state for approximately three hours.
The following graph shows the cure profile of StarFix ACOUSTIC tested according to ASTM D5895 (BK Drying recorder test).
Coverage Rates
To achieve the maximum bond strength and acoustic dampening properties, each pedestal requires a minimum of 90g of adhesive applied to its base. Each StarFix ACOUSTIC kit contains a total of 6500g which if applied at 100g per pedestal will be sufficient for:
StarFix ACOUSTIC 6.500kg kit: Pedestals =65 600x600 Panels =50 Total area=18m²
Product Storage
StarFix ACOUSTIC contains isocyanates and the advice contained in the products Safety Data Sheet (SDS) is of particular importance.
Good standards of industrial hygiene should be observed when handling this product. Protective gloves should be worn when handling the containers. The recommendations made in the Health and Safety data sheet for this product should always be observed.
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