コバヤシ List of Products and Services

Are you struggling with "unstable colors" or "not achieving the ideal color"? Kobayashi's liquid materials have a proven track record across a wide range of industries, from industrial products to everyday items. In particular, our reliable color matching technology, developed through the creation of toys and food samples that require delicate color coordination, faithfully reproduces the colors you envision. We will propose colored materials based on actual samples or standard color samples (PANTONE, Nippon Paint, DIC). Please feel free to contact us first.

• plastic

Our company's soft PVC "Kobazoru" is a one-component material that includes the necessary resources for performance manifestation. It has the property of solidifying when heat is applied and is widely used in industrial products as well as everyday items. Among these, we would like to introduce a grade that excels in heat resistance and flame retardancy. We are accepting requests for samples, so please feel free to contact us as soon as possible. 【Features】 ■ Liquid soft polyvinyl chloride material ■ Heat resistance confirmed by upper limit temperature tests for organic insulators ■ Flame retardancy compliant with UL standards ■ High transparency ■ Can be color-matched and tinted to your desired color *For detailed property values, please refer to the catalog or feel free to contact us.

• plastic

"Liquid plastic" is a highly flexible material that can be utilized in a wide range of fields, from everyday products to industrial applications, due to its advantages in accommodating various molding methods such as injection molding and dip molding. The composition of liquid plastic consists of a main resin component and necessary additives. The resin components primarily include PVC, polyurethane, and epoxy, with the possibility of incorporating silicone and emulsions as needed. Currently, we are offering technical information regarding liquid plastic. [Contents] ■ How to use liquid plastic ■ Examples of liquid plastic applications ■ Three benefits of utilization ■ Appropriate liquid plastic diagnostic sheet *For more details, please download the PDF or feel free to contact us.

• plastic

"Thermoplastic Styrene Elastomer (TPS)" is a highly versatile thermoplastic resin that offers great freedom in design and manufacturing. Compared to the time-consuming processing of rubber, it can be processed using methods employed for thermoplastic plastics, such as extrusion and injection molding. If you have needs for adjusting hardness, incorporating colorants or additives for product development, or if you want to improve workability and streamline processing, we can suggest suitable materials. 【Features】 ■ High transparency ■ Excellent flexibility with rubber-like elasticity ■ Can be molded using standard injection molding machines ■ Two types of product shapes available to meet your requirements ■ Custom hardness and color options available on-site *For more details, please download the materials or feel free to contact us.

• Other polymer materials

By adjusting the composition of the mixture, a textured design can be achieved on the surface simply by dipping. Depending on the mixture, a matte, semi-gloss, or embossed finish can be expressed.

• plastic

"Kobazole" is a general term for liquid materials manufactured and sold by Kobayashi Co., Ltd. It primarily consists of polyvinyl chloride, and we propose materials that impart the necessary characteristics according to the customer's applications and molding methods. We have prepared a wealth of materials related to Kobazole. For more details, please download the catalog or feel free to contact us. ■ Kobazole User Manual This manual summarizes various aspects of handling Kobazole, from the characteristics of the material to usage and molding methods. It also explains why it hardens when heat is applied and discusses its behavior. ■ Thermal Properties of Flexible Polyvinyl Chloride This document explains the thermal properties of general flexible polyvinyl chloride. It also introduces Kobazole product numbers with excellent thermal properties. ■ What is Liquid Plastic? We answer the question, "What are the advantages of liquid materials?" Our company also handles liquid materials such as epoxy and urethane, so this is a document we encourage those seeking new materials to read.

• plastic

Introducing "Thermoplastic Styrene Elastomer (TPS)". - Excellent transparency - Excellent flexibility - Can be molded using general-purpose injection molding machines - Two types of product shapes are available to meet your requirements - Easy to mix with other components, allowing for on-site customization of hardness and color For more details, please download the materials or feel free to contact us. ＼What is Kobayashi Co., Ltd. Kobazol Division?／ We specialize in the development, manufacturing, and sales of a wide variety of liquid plastics as our main products. We excel in proposing custom brands tailored to the specific needs and desired specifications of our customers, which large companies find difficult to address.

• Other polymer materials

To our valued daily goods manufacturers, we would like to introduce examples of developing and proposing materials suitable for usage environments, leveraging our extensive expertise. The company felt the need for new material development while working on the development of new products for underwater use. We were approached as a partner for material development and proposed materials suitable for the usage environment in just one month. Utilizing our rich knowledge and development capabilities, we swiftly addressed the material challenges. We also took care of the arrangement of molding materials, leading to successful product commercialization. 【Case Overview】 ■ Background - The need for new material development arose while working on new product development. ■ Effects - Proposed materials suitable for the usage environment in just one month. - Successfully commercialized the product by also taking care of the molding materials. *For more details, please download the PDF or feel free to contact us.

• plastic

To interior material manufacturers, we propose an intermediate material that uniformly disperses hard-to-mix components and will introduce examples of how we have resolved issues related to defects and decreased production efficiency. In the company, undispersed materials in the mixture were causing defects such as appearance issues and reduced physical properties. We proposed a paste-like intermediate material that uniformly disperses hard-to-mix components through careful selection of equipment and formulation. This improved defects caused by undispersion and resolved the issue of decreased production efficiency. 【Case Overview】 ■ Background - Defects and decreased production efficiency due to undispersed materials ■ Effects - Resolution of defects caused by undispersed materials - Resolution of decreased production efficiency issues - Prevents material scattering due to its paste-like consistency *For more details, please download the PDF or feel free to contact us.

• plastic

We would like to introduce a case where we developed and proposed a new coating material by applying technology obtained from other resins to a dip molding company. The company achieved adhesion between metal and coating by applying a primer. However, many primers have strong odors, which became a burden for the workers. We proposed a new coating material that combines adhesion to metal and moldability by applying technology obtained from other resins. This eliminated the need for primer treatment, leading to a fundamental improvement in odor issues. 【Case Overview】 ■ Background - Strong odor from the primer, causing a burden on workers ■ Effects - Primer is no longer needed with a material that combines adhesion and moldability - Fundamental resolution of odor issues *For more details, please download the PDF or feel free to contact us.

• plastic

We would like to introduce a case where we developed and proposed a new coating material by applying technology obtained from other resins to a dip molding company. The company was increasing the number of processes and performing primer treatment for the production of coating products adhered to metal. We proposed a new coating material that combines adhesion to metal and moldability by applying technology obtained from other resins. This eliminated the need for primer treatment, leading to improved productivity. 【Case Overview】 ■ Background - It was necessary to increase processes to meet product requirements. ■ Effects - The material with both adhesion and moldability eliminated the need for a primer process. - Productivity increased due to the reduction of the primer process. *For more details, please download the PDF or feel free to contact us.

• plastic

We would like to introduce a case where we developed and proposed materials that preemptively addressed issues by leveraging our expertise in materials for a dip molding company. The company required a transparent PVC cap material for wire convergence. Based on our previous knowledge, we anticipated the possibility of discoloration due to contact with metal. By preventing issues in advance, we achieved a smooth product development process without unnecessary effort. 【Case Overview】 ■ Background Development of materials suitable for transparent PVC caps was necessary. ■ Effect By preventing issues in advance, we enabled smooth product development for the customer without requiring extra effort. *For more details, please download the PDF or feel free to contact us.

• plastic

We would like to introduce a case that alleviated the concerns about contamination that the dip molding company had. Regulations on chemical substances are being strengthened year by year, and when handling multiple products, there is a concern about contamination from regulated substances. Our company proposes contamination-free materials through the establishment of a production system and regular monitoring via analysis! The dip molding company can use our materials with confidence. 【Case Overview】 ■ Background - Concerns about contamination from regulated substances ■ Effects - Provision of contamination-free materials through the establishment of a production system and regular monitoring via analysis - Ability to use materials with peace of mind *For more details, please download the PDF or feel free to contact us.

• plastic

To food sample manufacturers, we would like to introduce examples of how we have utilized our expertise in addressing various regulatory compliance issues to swiftly develop and propose materials. Due to their high reproducibility, food samples have been a concern regarding accidental ingestion. Our company quickly developed materials that comply with the Food Sanitation Act. While this is not a fundamental solution to the issue of accidental ingestion, we have achieved products that use only relatively safe materials. 【Case Overview】 ■ Background - As one approach to the issue of accidental ingestion, compliance with the Food Sanitation Act was considered, but it had not been realized due to high hurdles. ■ Effects - Differentiation of products through prompt regulatory compliance. - Achievement of products that use only relatively safe materials. *For more details, please download the PDF or feel free to contact us.

• plastic

To the toy molding company, we would like to introduce examples of how we quickly developed materials by leveraging our extensive knowledge. Due to the closure of the material manufacturer, a switch to new materials was necessary within four months. Although this was a new request for us, we promptly proposed materials that met the requirements. By adjusting the materials on-site to fit the production equipment, we were able to complete the process from request to delivery within four months. 【Case Overview】 ■ Background - A switch to new materials was necessary within four months due to the closure of the material manufacturer. ■ Effects - Completed the process from request to delivery in just under four months. - The materials were tailored to the equipment, allowing for a smooth transition. *For more details, please download the PDF or feel free to contact us.

• plastic

"I want to move production bases domestically." "Labor shortage." "I can't allocate time for new product development." ...Would you like to solve these issues with OEM/ODM? Leveraging the knowledge and technical expertise gained from the development and manufacturing of liquid plastics, we offer contract development and manufacturing tailored to our customers' needs. We provide high-quality materials used in a wide range of fields, from industrial products like adhesives and electronic components to everyday items like household goods and cleaning agents. Regarding OEM, we not only focus on production but also actively propose solutions to your challenges. Please check our catalog for information on our available equipment and the materials we can produce. We are also actively engaged in the development of environmentally friendly materials, so feel free to consult with us. [Catalog Contents] ■ Business Division Overview ■ Available Equipment ■ Materials We Can Produce ■ Process to Contracting

• plastic

"Liquid plastic" is a highly flexible material that can be utilized in a wide range of fields, from everyday products to industrial applications, due to its advantages in accommodating various molding methods such as injection molding and dip molding. Our company adjusts the properties of the material to meet specific requirements and proposes liquid plastic materials suitable for various applications. We also support prototyping from small lots and can flexibly respond to projects that require special specifications. 【Features】 ■ Development of new materials is possible ■ Customization of properties according to requests and applications is possible ■ Materials that are easy to mold and process, while meeting necessary performance, can be provided in small quantities ■ Prototyping is possible from a small scale ★ Currently, we are offering a descriptive document titled "What is Liquid Plastic?" which introduces the characteristics, application examples, and benefits of liquid plastic. You can view the detailed content immediately via "PDF Download." *Please feel free to contact us with any inquiries regarding liquid plastic.

• plastic

This page introduces "transparent materials" of "liquid plastics." (For those who are meeting the Kobayashi Kobazoru Division for the first time↓ The Kobazoru Division specializes in the development of a wide variety of liquid plastics. We excel in proposing custom brands tailored to the specific needs and desired specifications of our customers, which large companies find difficult to address.) "Liquid plastics" are in a liquid state at the temperatures we typically experience in our daily lives and solidify when heat is applied or a chemical reaction occurs. Among them, "transparent materials" boast unparalleled technological capabilities and product lineups. For example… - Method of solidification: Heating ⇔ Non-heating - Hardness: Super soft (e.g., artificial bait) ⇔ Hard (e.g., stone) - Examples of functional enhancements: Flame retardancy, static prevention, antibacterial properties, weather resistance, shatterproof properties, adhesion, tackiness, compliance with food sanitation laws, biomass content 【Contents (partial)】 ■ Transparent epoxy Aquarit general catalog ■ Transparent urethane materials ■ Glass coating *For more details, please refer to the PDF materials or feel free to contact us.

• plastic

Based on the amendment to Article 18, Paragraph 3 of the Food Sanitation Act and Notification No. 370, the transitional period for the "Positive List System for food utensils and containers made of synthetic resin (excluding rubber)" will end on May 31, 2025, and will be fully implemented starting June 1. This guide provides an overview of the system and the obligations for information transmission, clearly explaining the changes brought about by the difficult-to-understand legal amendments, which are abundant online. It also outlines our company's initiatives in response to the legal changes. [Contents Included] ■ About the Positive List (PL) System ■ About the Obligation to Transmit Information ■ Impact on Our Materials ■ Our Initiatives *For detailed information, please refer to the materials available via the download button below. Feel free to contact us with any inquiries.

• plastic

Are you struggling with your recent efforts towards the SDGs? Do you want to contribute to the SDGs in any way? Our adhesives can help with that! For example, If you want to reduce utility costs... we can suggest adhesives that cure at room temperature as well as heat-cured ones! If you feel unwell due to solvent odors... we can propose solvent-free adhesives! To contribute as much as possible, we also offer "adhesives" made from biomass-derived materials and biomass materials tailored to your needs. Please take a look at our materials!

• plastic

Our five business divisions have joined forces to develop an environmentally friendly shoe cleaner. The packaging containers and lids, the cleaner's sleeve, and the cleaner itself are all packed with eco-friendly innovations. There are even secrets in the packaging printing...? We approached this from various angles with the focus on being "environmentally friendly." For more details, please refer to the catalog.

• plastic

The thermal properties of plastics are greatly influenced by their molecular weight and composition. Soft polyvinyl chloride, in particular, is significantly affected by its composition, and it is necessary to select appropriate materials to meet the required thermal properties. Even though we refer to thermal properties in general, the necessary performance varies depending on the temperature and time involved, which means the required materials differ. Our soft polyvinyl chloride "Kobazole" is offered in a one-component state that includes the materials necessary for performance manifestation. We also have product numbers with excellent thermal properties available. For more details, please refer to our catalog or feel free to contact us. General thermal properties of soft polyvinyl chloride are also listed in the catalog, and we hope this information will be helpful.

• plastic

"Kobazore" is a plastic material manufactured and sold by Kobayashi Corporation, and it has the following characteristics: ▻ A stable liquid material at room temperature ▻ Solidifies when heat is applied ▻ Various properties can be imparted by changing the materials mixed in ▻ It is a one-component product, so there is no need for measurement

• plastic

The Biomass Mark is a label that can be attached to products that use 10% or more of biologically derived resources. There are several benefits to obtaining this mark: - It allows companies to promote their commitment to addressing environmental issues. - It clearly indicates that the product is environmentally friendly. - Since the mark can only be used on certified products, it helps differentiate them from other products.

• plastic

It can be used for the production of containers that may come into contact with tableware and food.

• plastic

Compared to polyester resin, it has features such as high transparency, low odor, quick curing, low shrinkage, strong adhesion, and high strength.

• plastic

This is a craft epoxy developed in response to customer feedback that mixing two liquids by weight is cumbersome! It is a user-friendly, low-odor type that can be used by volume.

• plastic

Solvent-free and low odor Compatible with hand mixing, injection molding machines, and mechanical stirring Usable time: 8 minutes or more

• plastic

Due to its low odor, it improves the working environment. It is easy to work with even for beginners. The mixing ratio is 100:100, making measurement simple.

• plastic

Soft vinyl is produced using slash molding. Our company manufactures and sells materials for slash molding. We also handle equipment, molds, and heat transfer media for oil baths, among other things. Materials: Kobazole HT series Kobazole ES series (non-phthalate) Molding machines: Oil bath, degassing machine, centrifuge, cooling tank, pouring can Molds: Electroformed molds Others: Heat transfer media for oil baths, pigments, glitter

• plastic

Kobayashi will respond to your requests for "I want this kind of adhesive"! "Can such performance be achieved?" For example... it should not peel off even at 100°C I want to use it in places that get wet. "Can it adhere to this substrate?" For example... what about aluminum? Nylon? Concrete? Additionally, if you want it to cure at room temperature or be solvent-free... Please consult us about your ideas! We will closely address each of your requests and respond to "I want this kind of adhesive"! For more details about what Kobayashi can do and past case studies of problem-solving, please refer to our catalog! *Our product lineup is also included.

• Other polymer materials

Even if you only look at the material information, you may not know if you can create the product you want... You may not know if it can be done with the equipment you currently have... You have a product you want to make, but are you unsure about what equipment and materials to use? Our company provides two-component curing resins (such as urethane and epoxy) in liquid form before molding. We also accept customization according to our customers' requests. Utilizing our experience in various industries, we can offer suggestions not only about materials but also about equipment. Please feel free to consult us about what you want to create! *For more details, please refer to the PDF or feel free to contact us.

• plastic

Please consult our company for the development of transparent resin! (We have many achievements) Since we use biomass materials, we can contribute to environmental considerations and the SDGs! It is a solvent-free urethane resin that is also gentle on the human body. 【Features】 - Biomass plastic... Reduces petroleum-derived plastics. - High transparency... Can beautifully protect the underlying material and printed surface, giving a sense of luxury. - Elasticity... Not brittle, making it resistant to breaking. - Functional enhancement... Can add functionality while maintaining transparency. (Examples) Weather resistance, antibacterial properties, antistatic properties (static electricity dissipation) For more details, please refer to the catalog and downloadable content. The actual biomass content is also publicly available! Samples can be provided upon request.

• plastic

We often hear concerns such as 'the smell is bothersome when using adhesive' and 'heating cannot be applied when curing the adhesive' in bonding and joining scenarios. Kobayashi's high-strength adhesive, utilizing room temperature curing technology, can be applied to the items to be bonded, allowing for a correction time, and achieves over 90% of its final strength within 24 hours. 【Features】 ◆ Capable of bonding the same materials as well as different materials such as metal and FRP ◆ Demonstrates stable bonding strength of over 20 MPa with typical metals (SPCC, SUS, etc.) and FRP ◆ Contains no volatile components such as organic solvents, resulting in low odor and excellent shelf life ◆ No heating required, making it suitable for bonding large items and on-site applications ◆ Resistant to water, oil, organic solvents, and high temperatures At Kobayashi, we are engaged in product development that leverages the flexibility of liquid resin products. We can also consult on controlling properties and working time before curing, as well as improving characteristic values and imparting functionality after curing. *For more details, please download the PDF or contact us directly.

• Other polymer materials
• Composite Materials
• plastic

"Color Matching Service" We can match colors to physical samples and standard color samples (PANTONE, Nippon Paint, DIC). Metallic colors with added pearl or aluminum powder are also available.

• plastic

- I want the erasure rate to be over 90%. - I want the eraser shavings to be more cohesive. - I want to erase with a light touch. - I want to implement environmental measures. - I want to use it for purposes other than erasing letters (such as shoe cleaner, rust removal, etc.). It is possible to design materials that meet these requirements.

• plastic

Seamless products such as color balls are made using rotational molding. Our company designs and develops liquid materials for rotational molding.

• plastic

This document introduces urethane, which is used in various products. In addition to the properties of urethane, it includes examples of applications and uses of our "KB Urethane," as well as examples of requests we can accommodate. We also present case studies on how "KB Urethane" solves challenges. The information is detailed and easy to understand, so please take a moment to read it. 【Contents (partial)】 ■ Custom order support ■ What is urethane? ■ There are two types of plastics ■ The advantages of urethane ■ Comparison of the physical properties of urethane and other resins *For more details, please refer to the PDF document or feel free to contact us.

• plastic

Our company is capable of creating a wide range of cured material properties by combining resins, hardeners, and various additives. Since our products are liquid materials, we can blend liquid and powdered biomass materials to create new value. We also assist in obtaining biomass certification from third-party organizations.

• plastic

Our company is capable of creating a wide range of cured material properties by combining resins, hardeners, and various additives. Since the products are liquid materials, they can be blended with both liquids and powders, allowing for a wide variety of molding applications.

• plastic

Our company can create a wide range of cured material properties by combining resins, hardeners, and various additives. Since the products are liquid materials, we can blend liquid and powdered biomass materials to create new value. We also assist in obtaining biomass certification from third-party organizations!

• plastic

<What We Can Do> - Production support starting from 20kg (low to high viscosity products) - Dispersion process using three-roll mills (two sizes available) - Production of high viscosity products using planetary mixers (non-metallic types only up to about 300kg) - Dehydration treatment using heating dehydration equipment - Syringe filling of high viscosity products

• plastic

<What We Can Do> - Production support starting from 20kg (low to high viscosity products) - Dispersion process using three-roll mills (two sizes available) - Production of high viscosity products using planetary mixers (non-metallic types only up to about 300kg) - Dehydration processing using heating dehydration equipment - Syringe filling of high viscosity products

• plastic

<What We Can Do> - Production support starting from 20kg small batches (low to high viscosity products) - Dispersion process using three-roll mills (two sizes available) - Production of high viscosity products using planetary mixers (non-metallic types only up to about 300kg) - Dehydration processing using heating dehydration equipment - Syringe filling of high viscosity products

• plastic

It does not compromise the design due to its transparent adhesive properties. Additionally, it exhibits excellent flexibility, allowing it to maintain its adaptability even after bending or other processing post-adhesion.

• plastic