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rubber×大和ケミカル - List of Manufacturers, Suppliers, Companies and Products

rubber Product List

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Representative rubber handled by Daiwa Chemical Co., Ltd.

We offer a wide variety of rubber with good rebound elasticity and excellent heat resistance, among other types.

We would like to introduce some representative types of rubber that we handle. Starting with "Natural Rubber (NR)," which exhibits strong tensile strength and elongation even without the addition of carbon black, we also offer "Silicone Rubber (Si)," which has the property of allowing oxygen to pass through while blocking hydrogen, as well as "Fluoro Rubber," known for its excellent heat resistance. Please use them according to your application. 【Lineup (Excerpt)】 ■ Natural Rubber (NR) ■ NBR ■ Butyl Rubber (IIR) ■ EPTR (EPDM)・EPR ■ CR (Chloroprene Rubber) *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 refer to the PDF materials or feel free to contact us.

  • Rubber

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"Laminate Protector" for corrosion prevention of steel structures.

Easy installation, no special work required! Maintains the strength of structures by reducing macrocell phenomena. *NETIS registered

The "Laminated Protector" is a product designed to protect the base of steel structures from corrosion caused by the macrocell phenomenon. It combines butyl rubber sheets, synthetic resin protective coatings, and self-fusing tape to safeguard the base and prevent the macrocell phenomenon. Its flexible structure allows for a wide range of applications, from poles, signs, and fences to public infrastructure and private drainage systems. Originally developed to meet the environmental requirements and heightened safety awareness on highways, the product is now applicable to a wide variety of uses. 【Features】 - Extends the lifespan of steel structures - Simple structure that does not select rust prevention targets - Easy to install *We also accept online meetings. If you would like an explanation about rubber or have projects under consideration, please feel free to let us know. *For more details, please refer to the PDF materials or feel free to contact us.

  • Other safety and hygiene products

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Basic Knowledge of Rubber - Types and Uses

Introducing the "Purpose and Types of Rubber Compounds" including raw rubber, vulcanizing agents, and vulcanization accelerators!

The widely used "rubber" includes "natural rubber" and "synthetic rubber." The main applications of rubber include uses that take advantage of its elasticity, such as tires and balls, as well as applications that utilize its stretchability and flexibility, such as hoses and bands. Additionally, synthetic rubber comes in various types, including those resistant to oil and gasoline, those that conduct electricity, and those that do not. It is important to understand the characteristics of each type of synthetic rubber and select materials according to the intended use. [Purpose and Types of Rubber Compounding Agents] ■ Raw Rubber - Purpose of Compounding: Main material - Types of Compounding Agents: Natural rubber, synthetic rubber - Composition Ratio: 48% *We also accept online meetings. If you would like an explanation about rubber or have 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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Explanatory Material "Basic Knowledge of Rubber Made Easy"

I have briefly summarized the advantages and disadvantages of rubber molding methods, as well as examples of issues related to rubber products.

We are engaged in the development and manufacturing of rubber products that are active in various industries such as automobiles (HV/EV), energy, medical, connectors, and engines. Currently, we are distributing materials that summarize basic knowledge about rubber, methods and advantages/disadvantages of rubber molding, and examples of common issues that may arise when using rubber products. 【Overview of the Materials】 ■ About natural rubber and synthetic rubber ■ Applications of rubber ■ What is synthetic rubber (discussion of composition, etc.) ■ Types of rubber compounding agents ■ Mechanism of rubber molding (cross-linking) ■ Advantages and disadvantages of rubber molding methods (compression molding, transfer molding, injection molding) ■ Examples of rubber product issues (O-rings, outgassing, softening degradation, migration contamination) * The materials can be viewed immediately from the "Download" section. * As sulfur-free becomes a trend, our company has developed an environmentally friendly "low-sulfur grade" rubber that does not use peroxide cross-linking to eliminate the costs and time associated with secondary cross-linking. Please contact us for more details. * We also accept online meetings. If you would like an explanation about rubber or have projects you are considering, please feel free to let us know.

  • Rubber

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Explanatory Material "Basic Knowledge of Rubber Made Easy"

We will introduce the advantages and disadvantages of rubber molding methods, as well as examples of troubles related to rubber products. We have received certification as a Health Management Excellent Corporation 2022.

Our company is engaged in the development and manufacturing of rubber products that are active in various industries such as automobiles (HV/EV), energy, medical, connectors, and engines. Currently, we are distributing materials that summarize basic knowledge about rubber, methods of rubber molding, their advantages and disadvantages, and examples of common issues that may arise when using rubber products. [Material Overview] ■ About Natural Rubber and Synthetic Rubber ■ Applications of Rubber ■ What is Synthetic Rubber (Composition and other discussions) ■ Types of Rubber Compounding Agents ■ Mechanism of Rubber Molding (Cross-linking) ■ Advantages and Disadvantages of Rubber Molding Methods (Compression Molding, Transfer Molding, Injection Molding) ■ Examples of Rubber Product Issues (O-rings, Outgassing, Softening Degradation, Migration Contamination) [Investment in Automation Equipment Including IoT Facilities] As a first step, we are introducing automatic assembly machines and automatic visual inspection machines at our headquarters factory. We aim to further improve efficiency and establish a system that can consistently supply high-quality products at low prices. *The materials can be viewed immediately from the "Download" section. If you would like an explanation about rubber or have any projects under consideration, please feel free to let us know.

  • Rubber

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Daiwa Chemical Co., Ltd. Company Profile

We have a commitment to continuously focus on technology and quality! We provide rubber parts for various applications globally.

Our company consistently handles the entire process from material design to parts manufacturing for automotive components, power infrastructure, medical devices, consumer electronics, and small engine-related parts. By accumulating know-how in material development, we have improved the flexibility and speed of prototype development, reducing the time required for development from one year to an average of three to six months for new special formulations. In the future, we will organize and consolidate recipe data to further enhance the efficiency of our development processes. 【Business Areas】 ■ Automotive-related business ■ Energy-related business ■ Medical-related business ■ Connector-related business ■ General-purpose engine-related business ■ In-house developed product: Laminated Protector *We also accept online meetings. If you would like an explanation about rubber or have any projects under consideration, please feel free to let us know. *For more details, please refer to the PDF materials or feel free to contact us.

  • Rubber

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[Free Offer] Prototype and Molding of Rubber Parts *Includes data sheet with material properties.

Mold production to product delivery in as little as one week! Contributing to cost reduction with proposals for high-quality, low-cost materials. *We are currently providing materials that include a property table of the materials we handle.

Our company has extensive experience in "prototype and molding of rubber parts," and we can respond with ultra-fast delivery, from prototype production to product delivery, in as little as about one week. We propose materials that are inexpensive and meet performance requirements based on the usage environment and application. We contribute to improving the speed of rubber part prototyping and reducing costs. 【We can solve the following concerns】 - I want to choose materials that are inexpensive and meet performance requirements. - I want to quickly confirm shapes using rubber for mold production. - I want to consider special specification materials such as weather-resistant, heat-resistant, oil-resistant, and sulfur-free. - I want to know more about rubber materials. *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. *We are currently offering easy basic knowledge about rubber. You can view it from "PDF Download."

  • Rubber

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[Case Study] Rubber Product Issues: Rubber Outgassing

Are there any cases where troubles such as clouding occur when using rubber in high-temperature environments?

When using rubber products in high-temperature environments, various components such as siloxanes, oils, sulfur, and ketones can outgas. Depending on the temperature environment and application of the product, it is necessary to create formulations that suppress outgassing or formulations that minimize the negative impact of outgassing on the counterpart products, tailored to the environment. Our company accepts consultations regarding market complaints and material troubles related to customer products, and we develop and propose new formulations as countermeasures, ensuring the supply of safe and reliable rubber parts. Please feel free to contact us when needed. 【Do you have any of the following issues?】 ■ Transparent lenses have become cloudy like frosted glass. ■ Outgassed components adhered to the counterpart product when the temperature cooled, causing contact failure. ■ Outgassing has dissolved the counterpart product. ■ Outgassing has corroded metal. *We also accept online meetings. If you would like an explanation about rubber or have projects under consideration, please feel free to let us know. *For more details, please do not hesitate to contact us.

  • Rubber

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[Case Study] Rubber Product Issues: Softening and Deterioration of Rubber

We will introduce a case study that significantly reduces the risk of softening deterioration by implementing a second bridge.

The popular rubber material known for its excellent weather resistance and ozone resistance is EPDM. However, in recent years, with the development of sulfur-free options, there have been cases where peroxide-crosslinked EPDM, which is widely used, can experience a softening degradation phenomenon, melting like candy when used for long periods in high ozone concentration environments. For peroxide-crosslinked EPDM, it is possible to significantly reduce the risk of softening degradation by implementing secondary crosslinking to remove residual peroxides. Our company accepts consultations regarding market complaints and material issues related to customer products, and we develop and propose new formulations as countermeasures, ensuring the supply of safe and reliable rubber parts. Please feel free to contact us when needed. 【Solutions】 ■ For peroxide-crosslinked EPDM, implementing secondary crosslinking can remove residual peroxides and significantly reduce the risk of softening degradation. ■ If there are concerns about softening degradation due to hydrolysis of urethane rubber, selecting ether-based urethane rubber can mitigate the risk of hydrolysis. *For more details, please feel free to contact us.

  • Rubber

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[Problem Solving] Issues with Rubber Products: Rubber Migration Contamination

Measures can be taken through a formulation proposal considering functionality and use! Stains that appear brown on the design surface and cannot be removed.

Migration contamination mainly causes problems as defects that impair appearance rather than performance, resulting in brown stains on design surfaces such as resin, metal, and painted surfaces, which become dirt that cannot be removed. When selecting chemicals such as crosslinking agents and aging inhibitors, it is necessary to choose suitable chemicals while considering both the product's required specifications and appearance quality requirements. Countermeasures can be implemented through formulation proposals that consider functionality and application. Our company accepts consultations regarding market complaints and material troubles related to customer products, and by developing and proposing new formulations as countermeasures, we provide safe and reliable rubber parts. 【Do you have any such issues?】 ■ The rubber product placed on a white table left a brown stain when moved. ■ The metal changed color after being stored together with rubber in a box. *We also accept online meetings. If you would like an explanation about rubber or have 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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