ホッティーポリマー List of Products and Services

The "Slippery Up Tube for 3D Printer Filament Supply" is a highly effective tube for supplying filament for soft materials in 3D printers. We have created a filament supply guide tube made from commonly used fluororesin tubes, branded as our unique "Slippery Up Tube." It is particularly effective for soft filaments, allowing for smooth filament supply. We can also accommodate requests regarding possible sizes and color variations. 【Features】 ■ Low friction: The coefficient of friction (μ) is as low as that of fluororesin. ■ Flexibility: Superior to fluororesin tubes. ■ Chemical resistance: Resistant to acids, alkalis, and alcohols. ■ Versatility: Custom sizes, colors, and outer surface treatments are available upon request (consultation required). *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• tube

Our company responds to various requests in silicone extrusion molding. Silicone rubber has excellent properties in terms of heat resistance, chemical resistance, weather resistance, compression set, distortion, and colorability compared to general synthetic rubber. We can manufacture general solid rubber molding of silicone rubber with such characteristics, as well as sponge products, dual-extruded products of solid rubber and sponge rubber, and metal insert products that are molded simultaneously with metal. 【Features】 - Fire resistance: Capable of producing crystalline and low-smoke products like "HP Barrier." - Steam resistance: Capable of producing products resistant to steam. - Conductivity: Capable of producing products with conductivity up to 10^1. - Phosphorescence: Capable of producing products that emit light in the dark as "Silicone." - Resilience: Excellent in compression set and superior in recovery from repeated use. - Colorability: Superior colorability compared to general synthetic rubber. *For more details, please refer to the PDF document or feel free to contact us.

• Rubber
• Other polymer materials

"HP Barrier" is an excellent silicone rubber extrusion product used as a fire-resistant gasket in construction. It ceramicizes during combustion, but it has excellent shape retention after ceramicization, which reduces the intrusion of flames and smoke due to the formation of gaps. Additionally, due to its low smoke generation, it can prevent the amount of smoke emitted by the gasket itself, making it effective for maintaining visibility during a fire. 【Features】 ■ Flame retardant: Has a high oxygen index of over 50% ■ Sinterability: Sintered into a ceramic form at high temperatures ■ Low smoke generation: High weight retention after sintering reduces gap formation ■ Shape retention: Generates significantly less smoke compared to general silicone rubber *For more details, please refer to the PDF document or feel free to contact us.

• Rubber
• Other polymer materials

As an expert in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Sube Up" is a high-sliding, wear-resistant resin extrusion product coated with a special slippery resin. Generally, polyolefin-based elastomers are materials in which rubber is dispersed within the resin, making the surface of the extruded products less slippery. When used as sealing materials or gaskets, they tend to adhere easily to the opposing material. Our product is an irregularly shaped extruded product that is simultaneously molded with a thin film of special slippery resin, which helps prevent adhesion and improve sliding properties. [Case Study] <Window Frame Related> ■ Composite window frames have become heavier in recent years, making them harder to open and close. 　→ By adopting Sube Up for the window frames, the opening and closing becomes smoother, achieving a reduction in the force required to operate them. *For more details, please refer to the PDF document or feel free to contact us.

• others
• Processing Contract

As experts in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Sube Up" is a high-sliding, wear-resistant resin extrusion product coated with a special slippery resin. Generally, polyolefin-based elastomers are materials that disperse rubber within the resin, making the surface of the extruded products less slippery. When used as sealing materials or gaskets, they tend to adhere easily to the counterpart materials. Our product is an irregularly shaped extruded product that is simultaneously molded with a thin film of special slippery resin, which helps prevent adhesion and improve sliding properties. 【Case Study】 <Related to residential equipment> ■ TPO is used for bathtub joints, but mold has been growing. 　→ By adopting Sube Up, cleanliness has improved, and product performance has been enhanced. 　→ The need for mold inhibitors has been eliminated, resulting in cost savings. *For more details, please refer to the PDF materials or feel free to contact us.

• others
• Processing Contract

As an expert in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Sube Up" is a high-sliding, wear-resistant resin extrusion product coated with a special slippery resin. Generally, polyolefin-based elastomers are materials in which rubber is dispersed in the resin, resulting in surfaces of extruded products that are not very slippery. When used as sealing materials or gaskets, they tend to adhere easily to the counterpart materials. Our product is an irregularly shaped extruded product that is simultaneously molded with a thin film of special slippery resin, which helps prevent adhesion and improve sliding properties. 【Case Study】 <Related to Sashes> ■ It was difficult to insert the shape material, requiring the use of soapy water during the process, which was very labor-intensive. 　→ By adopting Sube Up, there is no longer a need to apply soapy water. 　→ As a result, there were no more chocolate stops, leading to a reduction in man-hours. *For more details, please refer to the PDF materials or feel free to contact us.

• others
• Processing Contract

As experts in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Sube Up" is a high-sliding, wear-resistant resin extrusion product coated with a special slippery resin. Generally, polyolefin-based elastomers are materials in which rubber is dispersed within the resin, resulting in a surface that is not slippery. When used as sealing materials or gaskets, they tend to adhere easily to the opposing material. Our product is an irregularly shaped extrusion product that is simultaneously molded with a thin film of special slippery resin, which helps prevent adhesion and improve sliding properties. [Case Study] <Automotive and Sash Related> ■ When trying to open a closed state, it becomes difficult to open and close due to adhesion. 　→ By adopting Sube Up, a layer is formed between the product, eliminating adhesion. *For more details, please refer to the PDF document or feel free to contact us.

• others
• Processing Contract

As an expert in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. The "Sube Up Coat" is a non-stick fluorine-impregnated coating for synthetic rubber. It is simultaneously coated on continuously extruded rubber products to prevent sticking and reduce sliding resistance. It also offers excellent cost performance. [Case Study] <Automotive and Sash Related> ■ When in a closed state and occasionally attempting to open, it becomes stuck and difficult to open and close. → By adopting Sube Up Coat, a layer is formed between the product, eliminating sticking. *For more details, please refer to the PDF document or feel free to contact us.

• others
• Coating Agent

As experts in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Hottiesofura" is a cellular rubber that has been given resilience with ultra-low rebound and low hardness. Since the material is EPDM, it has minimal degradation from ultraviolet rays and ozone, and it also excels in heat resistance. It is produced using a continuous extrusion vulcanization line, so there are no length constraints. [Case Study] <Related to residential equipment> ■ Significant compression is required to improve water-stopping properties, and it is difficult to create shapes other than corners (using competitor's sponge boards as water-stopping materials for system baths) → By adopting Sofura, water-stopping properties can be secured with 25% compression, and it has become possible to create irregular shapes, thereby improving the product's performance. *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• others

As an expert in the extrusion molding of rubber and resin, Hottipolymer has assisted various companies, and we would like to introduce some of our development and manufacturing examples. The "Sube Up Tube" is a revolutionary tube with a smooth inner surface that glides easily. Because the inner surface glides smoothly, wire threading becomes easier. Additionally, we can also produce extruded products with special lubricating resin processing for both inner and outer surfaces. [Case Study] <Automotive Related> ■ When inserting a wire into the tube, it is usually difficult with standard products, and grease is applied to improve insertability, which is very labor-intensive. → By using the Sube Up Tube, the need to apply grease has been reduced, resulting in a decrease in labor hours. *For more details, please refer to the PDF document or feel free to contact us.

• tube

As experts in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Super View Up" is a transparent extrusion product made from polyolefin, planned and developed with a new concept. It excels in weather resistance, impact resistance, and scratch resistance, while also having low odor. Additionally, it offers excellent flexibility and heat resistance, and despite being non-crosslinked, it possesses outstanding rubber elasticity. 【Case Study】 <Interior Related> ■ Previously, the glazing channels for indoor fittings were produced using colored resin, which did not match the aluminum color tone and negatively affected the design. 　→ By using View Up, it was possible to eliminate the existence of the glazing channel itself, removing the need to match the color with aluminum and improving the design. *For more details, please refer to the PDF document or feel free to contact us.

• others

As an expert in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Shirikon" is a night-glow type silicone rubber extrusion product that contains a specially formulated phosphorescent pigment. It absorbs light from sources such as sunlight and fluorescent lights, and emits light in the dark. By imparting luminescence to silicone rubber, which possesses excellent weather resistance, heat resistance, chemical resistance, and flexibility, it can be used in various fields. [Case Study] <Residential Related> ■ In balconies of apartments, general packing is used for emergency exits, but we wanted it to be noticeable at night. 　→ By using Shirikon, the position of the emergency exit can be identified even at night, enhancing safety. *For more details, please refer to the PDF document or feel free to contact us.

• Rubber
• Other polymer materials

As an expert in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. "Shirikoone" is a night-glow type silicone rubber extrusion product that contains a specially formulated phosphorescent pigment. It absorbs light from sources such as sunlight and fluorescent lamps, and emits light in the dark. By imparting luminescence to silicone rubber, which possesses excellent weather resistance, heat resistance, chemical resistance, and flexibility, it can be used in various fields. [Examples] <Interior-related> ■ Steps on stairs become invisible in the dark, posing a danger. 　→ By using Shirikoone as a non-slip measure, it created a visible marker at foot level even at night, enhancing safety. *For more details, please refer to the PDF document or feel free to contact us.

• Rubber
• Other polymer materials

As experts in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. The "Trim Series" is a metal composite structure packing. Products that protect edges and have sealing parts are equipped with airtightness, waterproofness, and dustproof functions. They can be easily installed by simply sandwiching them between steel plates or resin boards. Additionally, since no adhesive is used, temporary fixing is unnecessary, simplifying the process. 【Case Study】 <Related to Machinery> ■ The airtight sections of distribution boards are currently being done with double-sided tape on corner sponges, but there have been many complaints in the market due to peeling and resulting airtight failures. 　→ By using the trim seal, peeling has been eliminated and airtightness has improved. 　→ Installation is achieved simply by pressing it in, leading to a reduction in labor costs. *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

As experts in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. The "Trim Series" is a metal composite structure packing. Products with edge protection and sealing parts possess airtightness, waterproofness, and dustproof functions. They can be easily installed by simply sandwiching them between steel plates or resin boards. Additionally, since no adhesive is used, temporary fixing is unnecessary, simplifying the process. 【Case Study】 <Equipment Related> ■ Cold drafts were entering the workspace from the bottom of the shutters installed in the factory, worsening the environment (corner sponge was installed to prevent drafts, but it had poor durability and required frequent replacement) → By changing the corner sponge to a trim seal, durability was improved → Replacement during maintenance became easier, and the environment improved *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

As an expert in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. The "Silicone Trim" is a packing made of a silicone rubber and metal composite structure. Products with edge protection and sealing parts possess airtightness, waterproofness, and dustproof functions. Additionally, we have achieved the creation of trims with the characteristics of silicone rubber, including high heat resistance, high chemical resistance, and long lifespan. 【Case Study】 <Mechanical Related> ■ The packing for the constant temperature layer uses a crescent-shaped packing, but it often comes off, negatively affecting performance. 　→ By changing to the silicone trim, the occurrence of coming off has decreased. 　→ It has also become easier to remove during maintenance. *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• others

As an expert in the extrusion molding of rubber and resin, we would like to introduce the development and manufacturing examples of Hottipolymer, which has assisted various companies. The "Ultra-Fine PEEK Tube" is a tube extruded from PEEK (Polyether Ether Ketone) resin, which has excellent physical and chemical properties. It can be continuously used in a temperature environment of 260°C. Due to its very low coefficient of friction, it exhibits outstanding wear resistance. [Case Study] <Automotive Related> ■ PEEK resin is high-performance but expensive, which raises the product price when used. 　→ By utilizing extruded products instead of injection-molded or machined products, cost reduction is achieved. *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

"Skinless sponge" is a revolutionary extruded sponge product that does not have the accompanying surface layer (skin layer) typically found in extruded products.

• Rubber

This is a fluororubber extruded product that has excellent oil resistance, heat resistance, and chemical resistance among synthetic rubbers.

• Rubber

Proposals through a diverse network powered by the Japan Rubber Manufacturers Association, the Sumida Rubber Manufacturers Association, and our Thai factory!

• Rubber

This is an environmentally friendly one-touch Easy & Convenience gasket that combines our proprietary "HP Sponge" with metal insert molding technology.

• Composite Materials

We offer contract molding with various materials using FDM 3D printers.

• Rubber

Silicone trim that has been modified using a groundbreaking fluorine gas surface treatment method to improve tackiness and sliding properties.

• Other machine elements
• locker

nTopology is software that integrates with existing CAD/CAM systems to realize engineering flows that include topology optimization and more. In recent years, with the advancement of 3D printing, there has been a demand for designs that leverage the high degree of freedom in manufacturing characteristics compared to traditional processing methods, known as DfAM (Design for Additive Manufacturing). This product allows for the incorporation of functional shapes derived from existing CAD systems and enables output to various formats using parameters defined by tools such as Excel. [Features (partial)] ■Topology Optimization ■Generative Design ■Architected Materials ■Simulation ■Digital Shibori, Ribs *For more details, please refer to the PDF materials or feel free to contact us.

• 3D Printer
• Other CAD related software
• Other CAM related software

Until now, the production of trial molds and the machining of rubber sheets have been common practices. In the prototyping and small-scale production of silicone rubber, we have started contract processing using the LAM method 3D printer "L320" for molding, as well as creating simple resin molds with a 3D printer to shape silicone rubber. In machining, significant waste can occur depending on the shape, as the flat plates used as raw materials are machined. Additionally, the high costs associated with mold production make it difficult to easily conduct prototypes. Our contract processing using 3D printers employs the LAM method (Liquid Additive Manufacturing), which significantly reduces waste and lowers costs. Our proprietary technology, "Crosslinking Bonding (patent pending)," allows for the production of various shapes. Furthermore, producing with simple resin molds can be done at a lower cost compared to creating trial molds from materials like aluminum. Please contact us as there may be limitations on the shapes we can accommodate.

• Other machine tools
• 3D Printer

If you are looking for engineering plastic tubes, please use Hotti Polymer Co., Ltd. We offer biodegradable engineering plastic tubes that possess excellent characteristics. Thermoplastic polyimide (TPI) is a type of super engineering plastic that imparts thermoplasticity to polyimide resin (PI). Our company manufactures and sells tubes made from thermoplastic polyimide (TPI). *For detailed information about the column, please refer to the related links. For more information, feel free to contact us.

• Engineering Plastics

If you are looking for medical tubes made from engineering plastics, please use Hottii Polymer Co., Ltd. We sell ultra-fine engineering plastic tubes that can be used not only for medical purposes but also for agriculture and civil engineering. The various materials we offer each have different characteristics. Therefore, it is important to carefully consider these characteristics when making your selection. *You can view the detailed content of the column from the related link. For more information, please feel free to contact us.*

• Engineering Plastics

When creating products designed with 3DCAD, I believe that prototypes are first made to verify functionality and design, but the production of prototypes requires time and cost. As a solution to these issues, I recommend utilizing 3D printers. 3D printers can create intricate prototypes with precise dimensions as per the design. Some can be produced in just a few hours, and costs can be reduced depending on the filament used. *For more details on the column, you can view it through the related links. Please feel free to contact us for more information.*

• 3D Printer

If you are looking for 3D printer filaments or flexible filaments, please use this as a reference. There are various types of flexible (soft) filaments, but a representative one is "TPU." TPU is a type of plastic that has rubber-like elasticity and can be processed using various methods such as extrusion, rolling, and injection. *For more detailed information, you can view the related links. Please feel free to contact us for further details.

• 3D Printer

Hottipolymer Co., Ltd., which develops and sells 3D printer filaments, offers a variety of filament materials. For example, we have filaments made from PEEK resin, which has excellent physical and chemical properties. This filament has a very stable dimensional accuracy of 1.75mm ± 0.05 and is environmentally friendly as it complies with REACH and RoHS regulations. Additionally, we offer aroma-type filaments that can be used for aroma goods and miscellaneous items. These filaments enhance sustainability by releasing aromatic components gradually. *For more details, please refer to the related links. Feel free to contact us for more information.*

• 3D Printer

For inquiries regarding materials, properties, sizes, colors, and prices of 3D printer filaments, please contact Hottii Polymer Co., Ltd. Our company, which specializes in the production of filaments, offers a variety of materials such as PEEK and PLA. The compatible 3D printers vary depending on the filament material, so be sure to check this in advance when making a purchase. On this page, we will introduce the characteristics of materials and properties that you should keep in mind when selecting 3D printer filaments. *For detailed content of the column, you can view it through the related links. For more information, please feel free to contact us.

• 3D Printer

Super engineering plastics are attracting attention from various industries as materials with excellent properties. Here, we provide a detailed explanation comparing the performance of super engineering plastics and engineering plastics, as well as focusing on "PEEK," a representative material that is gaining attention in the industry. We hope you find this information helpful. If you would like to consult about materials for 3D printers, please feel free to contact us. *You can view the detailed content of the column through the related links. For more information, please do not hesitate to contact us.*

• Engineering Plastics

If you are looking for super engineering plastic tubes, please use Hotti Polymer Co., Ltd. Our company manufactures and sells various high-performance super engineering plastic tubes. Super engineering plastics excel in mechanical strength, wear resistance, chemical resistance, and heat resistance, making them suitable for a wide range of applications such as gears, rollers, electrical components, automotive parts, and medical uses. Engineering plastics and super engineering plastics refer to high-performance resins classified as plastics. Generally, plastics with heat resistance above 100°C, strength above 49 MPa, and flexural modulus above 2.4 GPa are referred to as engineering plastics. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Engineering Plastics

Hottipolymer Co., Ltd., which manufactures products using silicone rubber, has a proven track record of developing and producing various extruded products made from high polymer materials. We offer a wide range of products, all of which are characterized by high quality and high performance. Silicone rubber is known for its excellent heat resistance, weather resistance, and chemical resistance, as well as its long lifespan. It is mainly used in products such as airtight gaskets for door sets and sashes, seals for precision instruments, and tubes. *For detailed content of the column, please refer to the related link. For more information, feel free to contact us.*

• Rubber

If you are looking for a manufacturer of silicone rubber extruded products, please consider Hotti Polymer Co., Ltd. We propose high-performance components that utilize the excellent properties of silicone rubber extruded products. In addition to silicone rubber, we also accommodate materials such as thermoplastic elastomers and plastics, which can be used for various applications including protection, insulation, airtightness, and cushioning. *For detailed information about the column, please refer to the related links. For more details, feel free to contact us.

• Rubber

If you are looking for sealing materials or trims (resin/silicone), please use Hottipolymer Co., Ltd., which offers a diverse range of proposals based on two pillars: rubber and resin. We are a company that provides problem-solving proposals and quick responses, offering high-tech and high-quality products with advanced equipment. We also uphold three mottos focused on next-generation research and development, guiding you to solutions for your concerns. *For detailed information on the column, please refer to the related links. For more information, feel free to contact us.*

• Rubber

When parts such as gears and bearings rub against each other and wear down, there is a risk of damage to the components and a decrease in precision. Since such risks are inherent in mechanical parts, "sliding" is essential when you want to ensure smooth movement. What is required for sliding properties is that the sliding surfaces have low heat generation, low power consumption, and a small difference in static and dynamic friction coefficients, resulting in a low friction coefficient. Additionally, it is necessary for the material to possess self-lubricating properties and high-speed sliding capabilities, as well as wear resistance that does not generate friction noise or vibrations. *For more detailed information, please refer to the related links. For further inquiries, feel free to contact us.

• Rubber

The materials used for 3D printers are sensitive to moisture. In particular, 3D printer filaments have a tendency to absorb moisture, and if they are exposed to humidity for an extended period, their quality and performance can deteriorate, so caution is necessary. Absorbing moisture can affect the accuracy of the prints, and defects may appear in the printed objects. There are not a few cases where the materials degrade to the point that they cannot be printed during storage. *For more details on the column, please refer to the related link. For further inquiries, feel free to contact us.

• 3D Printer

Utilizing 3D printers in companies offers many advantages. It leads to cost reductions associated with testing and modifications using extrusion molds created during the prototyping stage. Additionally, when we receive orders for mass-produced items, we also propose simple inspection jigs to standardize the inspection levels between both companies. With data created in 3D CAD and a 3D printer, prototypes can be made immediately, significantly shortening the development period. *For more detailed information, please refer to the related links. For further inquiries, feel free to contact us.

• 3D Printer

The materials used for gaskets in the construction and industrial fields include various types with excellent properties, such as silicone, EPDM (ethylene-propylene rubber), and TPO (olefin-based elastomer). For anything related to extrusion molding of gaskets and similar products, please leave it to Hottipolymer Co., Ltd. We offer high-performance products used in various fields such as automotive, construction, home appliances, scientific instruments, and precision machinery. *For detailed content of the column, you can view it through the related links. For more information, please feel free to contact us.

• Rubber

Hottipolymer Co., Ltd., which develops and manufactures gaskets, is also working on the development of original new products with a focus on environmental conservation. The gel gasket is a composite extrusion product that improves vibration absorption, water tightness, and functionality by simultaneously molding a jelly-like, elastic gel with elastomer. It can be used as a vibration-damping material or a building gasket. It meets RoHS regulations and does not use designated chemical substances under the PRTR law, making it recyclable. *For more details, you can view the related links. Please feel free to contact us for more information.

• Rubber

If you are looking for medical tubes made from engineering plastics, please contact Hottipolymer Co., Ltd. We are a company that specializes in the extrusion of polymer materials, including plant-based plastics and high-performance rubber. We offer a variety of proposals, starting with medical tubes. Rest assured that we deliver high-performance components with advanced technology and high quality. We also keep environmental considerations in mind during product development. *For more details on the column, please refer to the related links. Feel free to contact us for more information.

• Engineering Plastics

If you are looking for extruded products for scientific and chemical use made from engineering plastics (super engineering plastics), please leave it to Hottipolymer Co., Ltd. Engineering plastics are synthetic resins (plastics) with excellent performance. Among them, the extrusion of super engineering plastics is used as a material for molding products related to scientific supplies, analytical instruments, and semiconductors, such as tubes for various testing equipment and insulating materials. *For detailed information about the column, you can view it from the related links. Please feel free to contact us for more details.

• Engineering Plastics

Many products are created through extrusion molding (shaped), playing an active role in various scenes such as building materials, furniture, home appliances, and automobiles. At Hottipolymer Co., Ltd., which specializes in the extrusion molding of polymer materials, we propose high-performance products. We consider providing cutting-edge materials with advanced technology to our customers and will respond flexibly, so you can trust us with your needs. Extrusion molding (shaped) also allows us to prepare a variety of options. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• Rubber

Originally, resin refers to natural substances extracted from plants. However, artificially manufactured plastics are called synthetic resins, and products made from plastics are referred to as resin products. Why are plastics, which consist of polymer compounds that are not resins, called "synthetic resins"? It starts with addressing the issues associated with natural resins. *For more details on the column, you can view it through the related links. Please feel free to contact us for more information.*

• Rubber