[Free Sample Gift] Comparison of Rubber Sponges: NR, NBR, CR, EPDM

Various types of rubber-based sponges, commonly known as rubber sponges, have been categorized by their applications, usage environments, and excellent performance (strength, waterproofing, heat resistance, chemical resistance, etc.).

NR series (Natural Rubber) Rubber Sponge - Characteristics Has the most rubber-like elasticity. Good mechanical strength and abrasion resistance. Weak against heat and ultraviolet rays. - Main Applications Various tires, footwear, hoses, belts, vibration-damping rubber, industrial gaskets, etc. NBR series (Nitrile Rubber) - Characteristics Oil resistance is its greatest feature. Excellent gas permeability. Poor weather resistance and cold resistance. - Main Applications Oil seals, gaskets, packing, oil-resistant hoses, etc. CR series (Chloroprene Rubber) - Characteristics Has average properties such as weather resistance, oil resistance, and heat resistance. Excellent flame retardancy. - Main Applications Wire insulation, automotive parts, belts and hoses, window frame rubber, adhesives, etc. SR series (Silicone Rubber) - Characteristics High heat resistance, cold resistance, and weather resistance. Excellent electrical properties and non-stickiness. Physiologically safe material. Mechanical strength is inferior. - Main Applications Food-related, medical device-related packing, gaskets, industrial rolls, etc. EPDM series (Ethylene Propylene Rubber) - Characteristics Excellent ozone resistance, weather resistance, chemical resistance, heat resistance, and cold resistance. - Main Applications Window frames, automotive parts, electrical wires, outdoor cushioning materials, and shock-absorbing rubber materials, etc.

• Rubber

It is a clean polyolefin-based special foam with low outgassing that does not use chemical blowing agents. It is recommended for precision equipment and measures against sick house syndrome.

Due to the supercritical nitrogen gas foaming method, the foam has very low outgassing of substances such as siloxane, ammonia, formaldehyde, and sulfur, making it safe for use in measures against sick house syndrome and in precision equipment such as electronic circuits.

• Composite Materials

For anything related to sponges (foam), please leave it to Konan Co., Ltd.

Konan Co., Ltd. processes and sells various industrial materials, industrial supplies, and lifestyle-related products, primarily using sponge (foam) and other materials, and is making daily progress to be of service in a wide range of industries. Moving forward, we aim to become a company that can create better "monozukuri" (manufacturing) together with our customers by leveraging the technology and experience accumulated since our founding, while also providing various proposals through new ideas and creativity. 【Business Activities】 ○ Processing and sales of sponge (rubber, polyethylene, urethane) in general, rubber sheets, films, double-sided tape, etc. ○ Sales of various extruded and molded products, among others. For more details, please contact us or download the catalog.

• Rubber
• Composite Materials

Introducing sound-absorbing urethane foam. *Sample sponge book available.

Due to the special formulation of the urethane foam, it has sound-absorbing properties superior to general-purpose urethane foam. There are sound-absorbing types (general type, coated, flame-retardant) and vibration-damping types available. Manufacturer Inoac Corporation Representative part numbers F-2/F-4/F-6/F-9 *For more details, please refer to the PDF materials or feel free to contact us.

• Engine parts
• Rubber
• Cushioning material

We would like to introduce "Stability 2" handled by FCR and Bio Co., Ltd. This product is a jacket tube with a rack lid lock and anti-rotation function (compatible capacity 2.1ml). Additionally, for products equipped with the rack ID function, a 2D code for rack ID is provided on the bottom surface of the rack, allowing simultaneous reading of the tube ID (bottom surface 2D code) and rack ID within the rack, thereby reducing stress on samples during the reading process. 【Features】 ■ Polypropylene ■ Autoclavable ■ DMSO compatible ■ Compatible with liquid nitrogen vapor *For more details, please download the PDF or feel free to contact us.

Fukuda's new flagship model. - Masterless type (FLA-0200 series) - General type (FLA-0201 series) Two models of air leak testers. With the mastering correction function, high-precision measurements can be achieved in a short time. Please take a look at the catalog.

What is an Air Leak Tester? An "Air Leak Tester" is a device that pressurizes the inside (or outside) of a sealed workpiece with air and determines the presence of leaks based on pressure changes. When a master with no leaks and a workpiece with leaks are pressurized, the pressure on the workpiece side decreases, creating a pressure difference between the two. By measuring this pressure difference, the presence of leaks can be determined. Generally, differential pressure air leak testing is widely used, but Fukuda also offers products that utilize direct pressure leak testing and flow meters according to the leak rate, in addition to differential pressure leak testers. Since the air leak tester uses air as the measurement medium, it incurs no running costs and is environmentally friendly.

Fukuda Co., Ltd., which develops, manufactures, and sells leak testing equipment to inspect airtightness and sealing performance, provides a technical document that clearly explains the methods and theories of airtight testing, titled "Technical Manual." We are offering it as a PDF file. Please take this opportunity to download and view it!

● What is a flow meter? Flow meters measure flow rates using mass flow meters or laminar flow meters and perform pass/fail judgments based on flow rate criteria. They are ideal for measuring airflow and conducting performance tests. "FMZ-1063 series" This is a flow tester equipped with a mass flow meter. It offers high precision of ± 3.5 % of R.D. ± 1 digit (in the normal flow range). It features a time-saving function (scan measurement). The FMZ-1063 is a compact, all-in-one flow tester with various functions. "FU series" This is a flow measurement unit that integrates laminar and differential pressure sensors, making it smaller and lighter. When connected to a display indicator (model: MI-170), it can provide direct flow readings as well as pressure and flow judgments. "FLF-110 series" This is a laminar flow meter capable of measuring a wide range of flow rates from 2 NmL/min to 500 NL/min.