Rubber vulcanization adhesion

Bonding with various materials is possible!

■What is Vulcanization Adhesion? Vulcanization adhesion refers to the process of bonding uncured rubber with other materials (such as metals or resins) simultaneously during the rubber vulcanization process within a mold. An adhesive (formulated according to the type of rubber) is uniformly applied to the surface of the material to be bonded with the rubber, and heat and pressure are applied in the mold to achieve adhesion. Additionally, surface treatment of the bonded material or the application of adhesive to the rubber bonding surface may be performed as needed. ■Advantages of Vulcanization Adhesion The primary advantage of vulcanization adhesion is the increased adhesive strength. It bonds more firmly than adhesives that cure at room temperature. Adhesion using room temperature curing adhesives often results in the adhesive layer peeling off when an attempt is made to separate the bonded materials. As the adhesive layer cures, it may not keep up with the rubber's elasticity and can deteriorate over time, leading to failure at the adhesive layer. However, in the case of vulcanization adhesion, it generally does not peel off even when an attempt is made to separate it. If forced, it is the rubber part that tears, not the adhesive part. Our company can achieve strong vulcanization adhesion through our unique know-how. Even complex shapes that cannot be bonded later can be bonded using vulcanization adhesion. *For more details, please refer to the PDF document or feel free to contact us.

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