Cork contains millions of air-filled pockets per cubic inch. These air pockets compress under pressure, regaining their shape once pressure is removed thereby creating a gentle cushiony surface flooring material. With cork you are literally walking on air! This same characteristic is responsible for cork's success as an acoustic insulation.
100% Cork Flexicork Sheets excel in a variety of applications:
Underlayment
Sound reduction insulation
Stress crack suppression
Scratch protection for furnishings, floor and wall
Bulletin boards
Art projects
Trivets
Wall coverings
Underlayment Product Specifications
Size
Available in sheets of various sizes and thickness.
Binder
Resin of polyurethane
Base
Composition of cork granules Size 1 - 3
Denisity
190 kg/m3 - 210 kg/m3 (11.7 lb/ft3 - 12.5 lb/ft3)
Tensile Strength
5 - 8 kg/cm2
Recovery
75%
Flexibility
ASTM F5: Pass
Floatation
None after 3 hours immersion in boiling water.
Thermal Insulation
0.042 kcal/m3h0C
Acoustical Rating
With Cork 6mm
Ceramic Finish
Wood Finish
STC
IIC
STC
IIC
Concrete Slab 8"
58
60
56
62
Concrete Slab 6"
53
58
54
59
Concrete Slab 4" w/Steel Deck
60
64
60
65
Wood Joist Construction
54
59
54
60
Fire Behavior
Cork underlayment is a fire inhibitor which neither spreads flame nor releases toxic gases on combustion.
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