Checks on raw materials:
Cergomma's quality and constant final product characteristics start with tests on the raw materials used, which must be suitable for the production of rubber for ceramic tile punches pressing.
To achieve this, precise parameters are set, such as the viscosity of the polyurethane (which is cross-checked with the aid of a viscometer compliant with the iso 289-1/2/3/4 standard), and the dispersibility or reactivity of the powders (fillers).
Additional specific measures are taken to ensure that they give the best results in the compound.

Checks on the final product:
A 10x10 cm vulcanised specimen is moulded for each lot number produced
To allow visual inspection of the surface and ensure that it is free from contaminants or depressions, or at least that any minor flaws can be considered acceptable.

Hardness is tested on samples with an automatic shore A hardness unit.
The standard analysis method used for the hardness test is the iso 868 standard, with shore A hardness measured at 3 seconds.
The value taken to establish the suitability of the compound is the average of 5 hardness tests on the same specimen.

The rheometric curve of the lot, used to monitor the rubber’s performance during vulcanisation, is also measured on specimens.
The instrument used is an moving die (md) rheometer compliant with the iso 6502 standard.
All the instruments, regularly calibrated, are controlled by pc and the relative reports are held on file for at least three months after the individual batch's production date.
The acceptability criteria the customer should expect are stated in the relative instructions, which form part of the Cergomma integrated quality/environment management system and can be requested to the environmental quality manager.

The final inspection, covering the dimensions, the thickness, the weight and the conditions of the packaging itself are recorded and the lot number is placed on the packaging; the relative document is then signed by the operative who carried out the procedure.
The cergomma customer will find a numbered “quality tested” label or sticker on each pack, the number, from "1" to "1000", identifies the individual lot and ensures the complete traceability of the material supplied.