The ability of the silicone cup cover material to locally resist the hard block pressing into its surface is called hardness. Silicone rubber has a Shore hardness range of 10 to 80, which gives designers enough freedom to choose the required hardness to best achieve a specific function.
Mixing different percentages of polymer sheets, fillers and modifiers can achieve various hardness values. Likewise, the drying time and temperature can also change the hardness without destroying other physical properties.
The resistance to increase in energy on a notched specimen that prevents the expansion of the incision or score line. Even if it is placed under very high torsional internal stress after being cut, the hot vulcanized solid silicone rubber will not be torn.
Usually refers to the "ultimate cracking stretch" or the percentage increase relative to the original size when the sample breaks. The general elongation range of hot vulcanized solid silicone rubber is between 90 and 1120%.
The general elongation rate of fluorosilicone rubber is between 159 and 699%. The general elongation rate of liquid silicone rubber is between 220 and 900%. Different production methods and the selection of sealing curing agent can change its elongation to a great extent. The elongation of silicone rubber is closely related to the temperature.
The operating time is calculated from the moment the vulcanizing agent is added to the colloid. There is actually no sufficient boundary between this operation time and the subsequent vulcanization time. The silicone cup colloid has already begun vulcanization reaction from the moment the vulcanizing agent is added. This operation time is equivalent to the 30-minute vulcanization reaction of the product. It does not affect the quality of the product.