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  6. [Case Study] Troubles with Rubber Products: O-Rings

[Case Study] Troubles with Rubber Products: O-Rings

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last updated:Apr 06, 2026

大和ケミカル
大和ケミカル
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Seal by filling the gaps between the parts with rubber to prevent the liquid inside from leaking!

If the molding temperature and molding time of the O-ring are insufficient, the force trying to return the O-ring to its original shape becomes weak, and it remains compressed, resulting in gaps between the components. As a result, the liquid that was sealed by the O-ring leaks out, causing problems. However, the O-ring is fitted into the groove of the assembled components and compressed to fill the gap with rubber. By filling the space between the components with rubber, it seals to prevent the liquid inside from leaking, and the force of the compressed O-ring trying to return to its original shape can close the gaps between the components. [Case Study] ■ Issue - Insufficient molding temperature and molding time of the O-ring lead to gaps between components. ■ Solution - Fill the gaps between the components with rubber to seal and prevent the liquid inside from leaking. *We also accept online meetings. If you would like an explanation about rubber or have any projects you are considering, please feel free to let us know. *For more details, please do not hesitate to contact us.

    Rubber
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[Case Study] Troubles with Rubber Products: O-Rings

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  • Related Link - http://www.yamato-chemical.co.jp
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Daiwa Chemical Co., Ltd. Company Profile

Daiwa Chemical Co., Ltd. Company Profile

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Introduction to the Rubber Parts Manufacturing Business & Properties Table of Rubber Materials Handled

Introduction to the Rubber Parts Manufacturing Business & Properties Table of Rubber Materials Handled

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Feel free to consult us about any rubber-related concerns! [Yamato Chemical]

Feel free to consult us about any rubber-related concerns! [Yamato Chemical]

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Basic Knowledge of Rubber

Basic Knowledge of Rubber

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Daiwa Chemical Co., Ltd. Business Introduction

Daiwa Chemical Co., Ltd. Business Introduction

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Laminating protector

Laminating protector

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Company information

大和ケミカル

大和ケミカル

Rubber products

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Daiwa Chemical Co., Ltd. is a company primarily engaged in the manufacturing and sales of rubber and plastic parts. We handle a wide variety of rubber, including synthetic rubber and silicone rubber, which are used in various industries such as automotive parts and medical products. Additionally, we have renovated part of our factory into a clean room (ISO Class 8 compliant / cleanliness: Class 100,000) to enhance our capabilities in providing rubber parts for the medical device sector. We have a proven track record with products such as check valves, rings, and sealing rubber. If you have any inquiries regarding rubber molding, please feel free to consult with us.

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