Clearsorber Foil

Problem
Projects designed with extensive use of glass surfaces can produce strong interfering reflections and excessive reverberation,
which create an uncomfortably loud ambiance causing fatigue and corrupting speech intelligibility

Solution
To address these acoustical problems,while maintaining natural lighting and views to the outside, RPG introduces Clearsorber™ Foil, made from microperforated polycarbonate. If the perforations in a Helmholtz resonator are made sub-millimeter in diameter, they are comparable to the thickness of a boundary layer of air. As sound passes through these microperforations, sound absorption will occur due to viscous boundary layer effects in the perforations, as long as an air cavity is provided between the foil and the vision glass.It is then possible to achieve sound absorption without the need for additional porous material in the cavity behind the microperforated sheet, thus allowing the panel to be transparent or translucent. Therefore, the Clearsorber™ Foil offers an acoustical solution when a clear absorber is required.

Absorption
Clearsorber™ Foil provides absorption, because the microperforated panel, when spaced from a transparent or non-transparent reflective surface, offers high viscous losses when air passes through the surface. The Clearsorber™ is inherently damped and does not require porous absorption in the cavity between the Clearsorber™ and the reflecting wall behind it.

	Thickness:0.1 mm Hole Diameter:0.2 mm Distance to Glass:100 mm Distance Between Foils:30 mm
	Thickness:0.1 mm Hole Diameter:0.2 mm Distance to Glass:50 mm 4-way Attachment
	Thickness:0.1 mm Hole Diameter:0.2 mm Distance to Glass:30 mm Grommet Mounting
	Thickness:0.1 mm Hole Diameter:0.2 mm Distance to Glass:50 mm Distance Between Foils:30 mm
	Thickness:0.1 mm Hole Diameter:0.2 mm Distance to Glass:100 mm

Installation
Clearsorber™ Foil can be mounted single or double layer, with double layer providing broader bandwidth sound absorption. The foils are held in tension with springs stretched between a metal eye bolt and grommet in the corner of the foil. Panels can be tiled using the 4-way attachment, shown at far right.

Features and Benefits
Microperforated
Fiber-free
High Sound Absorption
Transparent,Translucent,or Metallic
Moisture,bacteria,and fungi resistant
UVstable
Class A Fire Rating
Easy to install

Patented sub-millimeter microperforation technology in a transparent sheet provides
sound absorption
Eliminates potential danger from particulates
High sound absorption is a result of viscous boundary layer effects in the perforations,
when a rear air cavity is provided between the Clearsorber™ Foil and the vision glass
Because the microperforations provide sound absorption without the need for a backing porous material,the foil can be made transparent ortranslucent, allowing natural lighting and visibility from a clear absorber
The foil is resistant to moisture,bacteria,and fungi and so can be used in place of
traditional fabric upholstered systems
UVstability insures the panels will not discolor nor decompose over time
Polycarbonate can be used in those facilities requiring a Class A/1 rating
Quick and easy installation saves time and money
Panels can be simply mounted or hung with decorative hardware selected by the
architect

Atria,Botanical Gardens,Lobbies,
Auditoriums,Commercial facilities,
Swimming Pools,Clean Rooms,Food
Processing Plants,Food Prep Areas,
Cafeterias,and Restaurants 

Product Options
Material:Polycarbonate
Width:1 m
Thickness:0.1 mm foil
Density:0.03 lbs/sf
Color:Clear