1. Tensile homes
Tensile efficiency is the first consideration of water resistant rubber securing strip. It includes: tensile stamina, tensile stress and anxiety, elongation at break and permanent contortion. Tensile strength is the optimal stress from tensile to fracture. The continuous tensile tension is the stress gotten to during the prescribed stretching; Elongation is the contortion caused by the specified tensile force (the ratio of the increment of extension to extension), as well as prolongation at break is the prolongation at break. Tear permanent contortion is the residual deformation in between the lines after tensile crack of the material.
2. Hardness
Solidity indicates the capability of the rubber seal to resist external pressure and is just one of the fundamental attributes of the seal. waterproof rubber seal The hardness of rubber seals is likewise very closely related to other qualities. As an example, the higher the firmness of the rubber seal, the extra strength, the smaller sized the elongation, the much better the wear resistance, as well as the low temperature level resistance is commonly inversely symmetrical to the solidity.
3. Reduction function
Rubber seals are typically in contraction. This circumstance is more obvious in high temperature and oily compounds, and this characteristic is directly relevant to the sustainability of the rubber securing capability.
4. Aging resistance
After the rubber seal undergoes O2, heat and cold, moisture, mechanical stress and anxiety, etc, it will trigger the qualities to degrade, which we call aging. The aging resistance can be expressed by the adjustment of the strength, prolongation and firmness of the rubber seal after aging, as well as the smaller the modification rate shows that the aging resistance is much better.
5. Oil or material resistance
In these substances, the rubber seal in enhancement to disintegration, at high temperature levels will certainly also lead to development and also its stamina, solidity reduction. Generally at a certain temperature, the top quality, quantity, stamina, elongation, firmness and also other characteristics of rubber seals are gauged after saturating in the material for a number of times to evaluate the oil or material resistance of rubber seals.
