PEARL®

DESCRIPTION

Consumers can appreciate the appearance and the feel of natural cork with our Pearl® microagglomerate. Pearl® stoppers show our continuous commitment toward sustainability and the value chain of the product. The cork shavings, following the punching of natural cork stoppers, are carefully selected, processed and reduced to uniformly-sized particles through a number of mechanical operations. These particles will be subjected to a vaporization and sterilization process through our SARA® system. Only food-grade glues are used.


INDIVIDUAL MOLDING
(production of agglomerated bodies)

SARA® SYSTEM
(vaporization and sterilization of cork granules)

PEARL PRESTIGE®


TECHNICAL SPECIFICATIONS

SIZES
Length: Nominal ± 0.5 mm
Diameter: Nominal ± 0.3 mm
Ovalisation: < 0.3 mm
Standard sizes: 38x24 mm, 44x24 mm

PHYSICAL
Moisture: 4 %-8 %
Dimensional recovery: > 96 %
Density: Nominal ± 40 Kg/m3
Resistance to boiling water: no disintegration
Granule size: 0.5-1 mm

FUNCTIONAL
Stopper extraction forces: 15 daN – 45 daN (coated stoppers only)
Sealing capacity: no leaks at 1.5 bar
Capillarity: < 1 mm
OTR: 0.016 cm3/day
TCA: TCA Free (1)

1) Less than 0.5 ng/L. NQA 0.65 for values between 0.5–1.0 ng/L.
Minimum lot: ≥ 10 000 corks. In accordance with ISO 20752.


STORAGE
Use no later than: 6 months (coated stoppers only)
Moisture in storage: 40 %-70 % RH, non-condensing
Storage temperature: 15 ᵒC–20 ᵒC, 59 ᵒF–68 ᵒF
Storage place: Store the stoppers in a clean, well-ventilated and odor-free place, away from products containing chlorine.

PEARL +®


TECHNICAL SPECIFICATIONS

SIZES
Length: Nominal ± 0.5 mm
Diameter: Nominal ± 0.3 mm
Ovalisation: < 0.3 mm
Standard sizes: 38x24 mm, 44x24 mm

PHYSICAL
Moisture: 4 % - 8 %
Dimensional recovery: > 96 %
Density: Nominal ± 40 Kg/m3
Resistance to boiling water: no disintegration
Granule size: 0.5 - 2 mm

FUNCTIONAL
Stopper extraction forces: 15 daN – 45 daN (coated stoppers only)
Sealing capacity: no leaks at 1.5 bar
Capillarity: < 1 mm
OTR: 0.016 cm3/day. Maximum of 0.030 cm3/day

STORAGE
Use no later than: 6 months (coated stoppers only)
Moisture in storage: 40 %-70 % RH, non-condensing
Storage temperature: 15 ᵒC–20 ᵒC, 59 ᵒF–68 ᵒF
Storage place: Store the stoppers in a clean, well-ventilated and odor-free place, away from products containing chlorine.