What is the reason for the sealant sealing failure? Analysis of common causes
Time:2024-08-07
Views:119
Sealant is a kind of glue that can change its shape according to the shape of the sealing surface. This glue has high viscosity and is not easy to flow. It has good bonding performance after curing. The main raw materials are asphalt, natural rubber, and then some plasticizers, curing agents, accelerators, etc. are added. It can be used in automobiles, buildings, and electronic instruments. After curing, the waterproof performance is relatively good.
How is the sealing performance of sealant?
The sealing performance of sealant is very good and can be used in precision electronic instruments. The construction method is completely different from the construction method of two-component sealant according to the type of seal. No matter what kind of sealant, it can achieve waterproof, moisture-proof, insulation, and isolation of external substances after curing.
What is the reason for the failure of sealant sealing performance?
The failure of sealant sealing performance is divided into many situations, such as: sealant fracture, poor sealant viscosity, degumming, poor anti-aging ability, short shelf life, etc. Different factors lead to sealing performance failure related to various situations. The common reasons are sealant quality and operation process.
Poor sealant quality directly leads to the breakage of the colloid after the sealant is cured, and even degumming, which causes water and moisture to enter the substrate and affect the use of electrical appliances. In order to avoid this situation, you can cooperate with brand companies, such as TENSAN, which focuses on the research of sealants and provides customized sealant application solutions. It has a wide range of uses and can be applied to new energy, military, medical, aviation, shipbuilding, electronics, automobiles, instruments, power supplies, high-speed rail and other industries.
Unreasonable operation process will also lead to sealing failure. The surface of the substrate must be free of oil, dust and impurities. If the surface of the substrate is not clean, the bonding performance will directly decrease after pouring the sealant. Poor waterproof performance and reduced service life are common situations.
Sealant is a common adhesive in the field of electrical appliance manufacturing. When purchasing, users should purchase reasonable products according to the field of use, especially two-component products. The adhesive must be mixed in proportion, so that various performances can be effectively guaranteed after curing.
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