Features of Hardness

Coating Thickness

The measurement of hardness is standardized
Depending on the thickness:

• Until 50 Shore A: no less than 9mm
• Above 50 Shores A: no less than 6mm

Depending on the temperature :

• Standard laboratory temperature: 23 ±2°C with a regular temperature increase for a valid and comparable result.

Number of measures

To be exact, the hardness of a maximum table piece of 2500 mm, the hardness must be taken in five different places:

• 3 points each separated by 120° around a circumference in the middle of the cylinder
• 1 point at each end and at a distance equal to 10% of the length of the coating from the end.

Temperature

To be exact, the hardness of a maximum table piece of 2500 mm, the temperature must be taken in 9/6 different places:

• 3 points each separated by 120° around a circumference in the middle of the cylinder
• 3 points each separated by 120° around a circumference at each end.