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What is the difference between silicone sealant and polyurethane sealant? Which adhesive is better to use?


Silicone sealant is different from polyurethane sealant, the raw materials are different, and the advantages displayed are different. It cannot be simply judged which material adhesive is better, and the application fields are different, and they show greater value in their respective fields.


What is the difference between silicone sealant and polyurethane sealant?

During the curing process, the silicone sealant hardly foams. It is firmly bonded with the adhesive material, resistant to humidity, heat and aging. After curing, it effectively resists the effects of tearing and oil stains, and will not be easily polluted. During the construction process, it is recommended that the adhesive layer should not be too thick, otherwise the curing time will be prolonged. To avoid these situations, it is recommended to choose a quality product. Cooperate with powerful suppliers, such as TENSAN, which focuses on silicone sealant research and provides customized silicone sealant application solutions. It has a wide range of uses and can be used in new energy, military, medical, aviation, shipbuilding, and electronics. , automobiles, instruments, power supplies, high-speed rail and other industries.


During the curing process, the strength of the polyurethane sealant is good, and it has good adhesion and tear resistance. Complete curing at room temperature, can resist low temperature, and will not freeze and crack in cold environment. However, air bubbles may appear during the curing process, resulting in cracks in the adhesive layer. Try to choose a high-quality adhesive to ensure a more ideal curing effect.


Which adhesive is better to use?

Every adhesive is not perfect and has small flaws. For example, the puncture resistance of silicone sealant is not particularly good, and the price is relatively expensive. The curing speed of polyurethane sealant is a bit slow, and its aging resistance is not very good. The advantages and disadvantages of these two adhesives are different, and the use environment is different.


In the process of purchasing, not only the advantages of adhesives, but also the disadvantages must be considered. Combine the advantages and disadvantages together to see how cost-effective it is and what areas it can be used in. If you only consider the advantages and ignore the disadvantages, you may encounter troubles in use. Be prepared to avoid difficult problems.

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