M.WATANABE & CO.,LTD. Product Lineup

The chrome mask rubber sheets produced by our group company, Wacom Manufacturing, are made in a clean environment and come in a wide variety of types. 【Features】 ■Manufactured in a clean environment 　・Being manufactured to minimize containment of foreign matter. ■Wide variety of types 　・Material hardness ranges from 0 to 90 degrees (JIS A), and thickness is available from 0.3mm. ■Adhearing resin to rubber 　・It is possible to bond not only rubber itself but also resin to rubber. 　(For example: double-coated adhesive tape, PET film, Bakelite, Gala-epoxy, etc.) *For more details, please contact us or download our catalog for more information.

Molded products, mainly silicone rubber, are manufactured by one of our group companies, Wacom Manufacturing Co., Ltd.. Silicone rubber moldings are manufactured in a clean environment to prevent contact with foreign matter. Furthermore, the dimensional accuracy of the molded products is greatly improved and suitable for semiconductor manufacturing systems, and medical device parts. 【Features】 ■Suitable for semiconductor manufacturing systems and medical equipment. ・The product is manufactured in a clean environment free of foreign substances from material kneading to packaging. ■Capable of obtaining the original dimensional values of products. ・The general measurement of the product is by contact "Measuring rubber by crushing and deforming" but we can obtain the original dimensional values of products by non-contact measurement using an optical measuring instrument. ■Providing high quality products ・We continue to provide high-quality products to satisfy our customers by performing qualitative and quantitative analysis using analysis equipment (infrared spectroscopy), 3D laser scanning confocal microscope, rubber universal automatic hardness tester, and physical property measuring instruments. ■Waterproof parts that pass IPX7* (protection class against inundation) 　・Integral molding of different materials is also possible (resin material + silicone rubber, metal + silicone rubber, etc.) *For more details, please contact us or download the catalog.

The silicone gel sheet is an ultra-low hardness silicone rubber sheet manufactured by one of our group companies, Wacom Manufacturing Co., Ltd. Demand for ultra-low hardness is steadily increasing for shock-absorbing, masking, and other applications. We will standardize on ultra-low hardness sheet and deliver it to users in various industries within a short period of time. 【Features】 　・High shock absorption with exceptional softness 　・Vibration isolating performance, which is not possible with rubber 　・High thermal conductivity 　・Excellent waterproofing and dust proofing *For more details, please contact us or download our catalog for further information.

The silicone rubber sheets manufactured by one of our group companies, Wacom Manufacturing Co., Ltd., are produced in a well-sterilized facility with almost no contamination such as foreign matter. 【Specifications】 　・Thickness: 0.5mm, 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm 　・Size: 300mm x 300mm, 500mm x 500mm In addition to general-purpose products listed above, we can also provide silicone rubber sheets with special specifications such as conductivity, flame retardance, heat resistance, heat dissipation, and high tear resistance. Please contact us for details, thicknesses, and sizes other than the above. *For details and inquiries about thicknesses and sizes not listed above, please contact us.

The ultra-transparent silicone rubber has a transmittance of 95%, which is as transparent as glass or acrylic resin. It is available in thicknesses from 100 μ as the best buffer protection film for preventing scratches on LCD screens, operating touch panels, and other screens. 【Features】 　・Transparency is as good as glass with 95% transmittance. 　・Flexible and unbreakable. 【Applications】 　・Protective film (scratch protection for LCD screens and buffer protection for touch panels and 　 other screen operations) 　・Various parts for LED's 　・Substitute material for glass and acrylic 　・Materials for interiors, toys, and accessories 　・Materials for special lenses, etc. *For more details, please contact us.

This product consists of glass fiber placed between silicone sheets. *For more details, please contact us.*

Silicone is functional material used in a wide range of industries because it has excellent heat resistance, weather resistance, and electrical properties, and can be used in a wide variety of product forms such as rubber and resin. We have some of Momentive's silicone products in stock which we can supply in a very short period of time. 【Features】 ・Excellent scientific and thermal stability, weather resistance, and electrical insulation properties. ・Mold releasability ・Non-adhesive addition ・Defoaming property, etc 【Applications】 ・Room temperature curing type silicone rubber (RTV) is used as adhesives, potting agents, sealants, etc. *For more information, please contact us or download our catalog.

Our company's ultra-low temperature silicone rubber demonstrates the expected functions of silicone rubber, particularly flexibility, even in harsh environments at ultra-low temperatures (around -114°C). 【Features】 ■ Exhibits flexibility at ultra-low temperatures of -114°C. In bending and tensile tests, our silicone rubber does not break or fracture in environments where general-purpose silicone rubber loses its properties due to extreme cold. ■ Medical-grade silicone rubber that has passed rigorous testing. This medical-grade silicone rubber has passed stringent compatibility tests, including medical standards (ISO 10993) and USP (United States Pharmacopeia Class VI). *For more details, please contact us or download our catalog for more information. #ColdResistanceOfSiliconeRubber #SiliconeRubber(Si) #SiliconeRubberSheet #PropertiesOfSiliconeRubber

Our company's ultra-low temperature silicone rubber demonstrates the expected functions of silicone rubber, particularly flexibility, even in harsh environments at ultra-low temperatures (around -114°C). 【Features】 ■ It maintains flexibility at ultra-low temperatures of -114°C. In bending and tensile tests, our silicone rubber does not break or fracture in ultra-low temperature environments where general-purpose silicone rubber would fail. Therefore, it can be used in applications such as seals for superconducting experiments that operate at ultra-low temperatures. *For more details, please contact us or download our catalog for more information. #ColdResistanceOfSiliconeRubber #SiliconeRubber(Si) #SiliconeRubberSheet #PropertiesOfSiliconeRubber

Fluoroelastomer (FKM) has outstanding heat resistance, oil resistance, and chemical resistance. Utilizing these characteristics, it is used in semiconductor manufacturing equipment, automobiles, energy-related applications, and chemical plant factories. Additionally, through our unique coating and surface modification treatments, various properties can be imparted. 【Features】 ■ Heat resistance, oil resistance, chemical resistance Fluoroelastomer (FKM) excels in high-temperature stability and has excellent oil and chemical resistance. ■ Low gas permeability Processed into gaskets, O-rings, etc., it is widely used for airtight gaskets in semiconductor manufacturing equipment. ■ Performs well in harsh environments Fluoroelastomer (FKM) is utilized in automotive engine parts where oil resistance is required at high temperatures, as well as in the field of medical and scientific applications, leveraging its chemical resistance. ■ Manufactured in a clean environment Manufactured in a clean environment that considers foreign matter prevention, it is widely used in semiconductor manufacturing processes and the medical and scientific fields. *For more details, please contact us or download the catalog for further information. #Heat-resistant rubber sheet #Oil-resistant rubber sheet #Looking for heat-resistant rubber #Silicone rubber (Si) #Silicone rubber sheet

M.Watanabe's silicone rubber sheets can be integrally molded onto various substrates depending on the application. 【Features】 ■ Silicone rubber can be integrally molded onto substrates such as glass epoxy materials. It is mainly used as a plating mask for lead frames and connector manufacturing. ■ Laser processing is also available. ■ Substrates other than glass epoxy boards can also be accommodated. - Bakelite boards - PET films - Double-sided tape - Resins - Metals and others can also be accommodated. *For more details, please contact us or download and view the catalog.

We can manufacture silicone rubber sheets that can withstand ultra-high temperatures (up to 300℃). 【Features】 ■ Unlike conventional general-purpose silicone rubber sheets, these can be used at 300℃. * The heat resistance temperature may vary depending on usage time and other conditions. ■ Other physical properties, aside from heat resistance, are basically the same as those of general-purpose silicone rubber sheets. Therefore, the surface of the sheet has adhesive properties, allowing it to stick firmly while being easy to peel off. Additionally, if you want to reduce the adhesive properties, it is possible to apply coatings or surface modification treatments to decrease the friction coefficient. ■ The sheet thickness can be produced from 0.2t and above. For thinner options, please consult us separately. * For more details, please contact us or download the catalog to view. #HeatResistantRubberSheet #LookingForHeatResistantRubber #SiliconeRubber(Si) #SiliconeRubberSheet #PropertiesOfSiliconeRubber

Our company's ultra-low temperature silicone rubber demonstrates the expected functions of silicone rubber, particularly flexibility, even in harsh environments at ultra-low temperatures (-114°C). 【Features】 ■ This silicone rubber (gaskets, tubes, etc.) can be used in ultra-low temperatures where hydrogen, which is in increasing demand across various sectors such as industry, petroleum refining, power generation, and transportation, is utilized in pursuit of carbon neutrality. ■ It exhibits flexibility at ultra-low temperatures of -114°C. In both bending and tensile tests, our silicone rubber does not break or fracture in ultra-low temperature environments where general-purpose silicone rubber would fail. *For more details, please contact us or download our catalog for further information. #ColdResistanceOfSiliconeRubber #SiliconeRubber(Si) #SiliconeRubberSheet #PropertiesOfSiliconeRubber

Our silicone rubber demonstrates the expected functions of silicone rubber, particularly flexibility, even in extremely low temperatures (SF4 grade, former F4 grade). 【Features】 ■ It can be used in extremely low temperatures (SF4 grade, former F4 grade), where general silicone rubber cannot be used. Therefore, it can also be used as packing for the frozen storage of fish and meat, especially tuna and bonito. ■ It maintains flexibility even at -114°C, making it usable in SF4 grade (former F4 grade). In environments of extreme low temperatures, where general silicone rubber would lose its properties, our silicone rubber does not break or fracture during bending and tensile tests. *For more details, please contact us or download our catalog for more information. #ColdResistanceOfSiliconeRubber #SiliconeRubber(Si) #SiliconeRubberSheet #PropertiesOfSiliconeRubber

Our Company is possible to combine multiple silicone rubber sheets. For example, if you require softness and surface tackiness in the sheet but do not want to compromise on strength, we can accommodate this by combining low-hardness sheets with high-strength sheets. In conventional sheets, low hardness and high strength cannot coexist, and one must be sacrificed. However, at Watanabe Trading Company, we can provide both characteristics. *For more details, please contact us or download and view our catalog.*

We can manufacture silicone rubber products that prevent particle adhesion and are also translucent and colorable. 【Features】 - This silicone rubber overturns the conventional wisdom that particle-resistant silicone rubber must be conductive and black; it is translucent and can be colored. - It can be produced in both sheet and molded forms. - The translucent suction pads make it easier to check the adhered components. - Sheet thickness can be produced from 0.2t and above. For even thinner options, please consult us separately. *For more details, please contact us or download the catalog to view. #TranslucentSiliconeRubber #StaticPreventiveSiliconeRubber #SiliconeRubberSheet

In the manufacturing industry, especially in quality control, accurate masking of products is crucial. In processes such as plating, the precision of masking significantly affects product quality. Contamination by foreign substances or inadequate masking can lead to the occurrence of defective products, potentially resulting in increased costs. Our masking rubber sheets are produced in a clean environment, taking foreign substance countermeasures into consideration. This supports the manufacturing of high-quality products. 【Usage Scenarios】 - Masking in the plating process - Masking in the painting process - Processes where prevention of foreign substance contamination is desired 【Benefits of Implementation】 - Reduction of defective products - Improvement of quality - Cost reduction

In the semiconductor industry, high insulation properties are required to ensure product quality and reliability. Particularly as miniaturization progresses, contamination by foreign substances can lead to insulation failures, potentially resulting in decreased product performance or malfunctions. Our silicone rubber sheets are manufactured in a clean factory, minimizing the risk of foreign substance contamination. This ensures the insulation of semiconductor devices and contributes to improved product reliability. 【Usage Scenarios】 - Insulation applications in semiconductor manufacturing processes - Protection of electronic components - Use in cleanroom environments 【Benefits of Implementation】 - Reduction of defect rates due to foreign substance contamination - Improvement in product reliability - Assurance of stable quality

In the aerospace industry, protection of components and sealing performance under high-temperature environments are required. In particular, areas exposed to extreme temperature changes, such as around engines and the exterior of the aircraft, necessitate materials with excellent heat resistance. Improper material selection can lead to deterioration of components or malfunction, potentially compromising safety. Our silicone rubber sheets excel in heat resistance and meet the stringent demands of aerospace applications. 【Application Scenarios】 - Seals around engines - Protective materials for the exterior of the aircraft - Component cushioning materials in high-temperature environments 【Benefits of Implementation】 - Stable performance maintenance under high-temperature environments - Extended lifespan of components - Improved safety

In the medical device industry, the safety and reliability of products are of utmost importance. Seals are essential components that maintain the airtightness of devices and prevent foreign matter contamination. Particularly in equipment used in medical settings, the leaching of substances from seals or contamination by foreign matter can have serious implications for patient health. Our silicone rubber sheets are manufactured in a well-maintained factory, minimizing the risk of foreign matter contamination. Silicone rubber sheets produced under strict quality control contribute to ensuring the safety of medical devices and protecting patient health. 【Application Scenarios】 - Seals for medical devices - Sealing materials for analytical equipment - Use in clean rooms 【Benefits of Implementation】 - Reduced risk of foreign matter contamination - Improved safety due to high airtightness - Stable performance across a wide temperature range