Cork grains carefully selected, high quality of the natural cork discs, the 2R champagne cork stoppers, a product mixing experience and technology, offering the maximum sealing guarantee in the long period.
Made with an individually agglomerated moulded body, with a perfectly homogeneous distribution of the cork grain, as showed by the remarkable values of the torsion angle ( up to 60°) and of the breaking moment up to 45°).
This cork grain homogeneity is also an assurance against every problem due to gas or wine leakage. The two cork discs, glued on the bottom, are made with high density cork planks, controlled and checked already in the cork oak stand: this allows to reject all the raw cork barks that, owing to vegetative anomalies of the cork oak tree, can compromise the resistance to the mechanical stress of the corking machine; consequently, to avoid the problems due to the cork discs ungluing.
The surface coating made with silicone elastomers allows an easier uncorking thanks to a standardized extraction force. The organoleptic control carried out during the production processing, allows to identify and to reject those cork stoppers affected by probable anomalies. The cork stopper MP 2R is recommended for the champagne or sparkling wines corking.
Parameters / Tolerances
Tolerances on normal dimensions
- Height: +/- 0,4 mm
- Diameter: +/- 0,3 mm
- Humidity: Min: 3% Max :8%
- Ovalization: ≤ 0,3 mm
- Apparent volumetric mass: 275 +/- 35 Kg/m3
Characteristics physical / mechanical / sensory
- Breaking moment: > 40 daN.cm
- Torsion angle: > 30°
- Dust transfer: < 0,5 mg/stopper
- Organoleptic test: ≤ 2%
- Agglomeration: Individually Moulded Body
Genesis steam treatment for the reduction of tar and other volatile substances.
Polyurethane adhesives used for agglomeration of the body and gluing of washers with food certification for food contact.
Wash: with diluted peracetic acid.
Silicone lubricant and adhesives with food certification for food contact.