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  1. Home
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  3. ジャパンマテックス シールエンジニアリングセンター
  4. Improving the issues with expanded graphite gaskets! "Reduces sticking to flanges!" (8121ND・8131ND)
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  • May 07, 2019
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May 07, 2019

Improving the issues with expanded graphite gaskets! "Reduces sticking to flanges!" (8121ND・8131ND)

ジャパンマテックス ジャパンマテックス シールエンジニアリングセンター
The Cleamatex series 8121ND and 8131ND gaskets are gaskets that have been treated to prevent adhesion on their surfaces. The performance of the gaskets has been significantly improved, greatly reducing the issue of gasket adhesion that was a challenge with conventional expansion black smoke gaskets, thereby making it possible to reduce flange cleaning work during maintenance.
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Improving the Issues of Expanded Graphite Gaskets! "Reduces Adhesion to Flanges!" (8121ND・8131ND)
The Cleamatex series 8121ND・8131ND gaskets are gaskets that have been treated to prevent adhesion on their surfaces. The performance of the gaskets is significantly improved, as the adhesion issues that have been a challenge with conventional expanded graphite gaskets are greatly suppressed, making it possible to reduce flange cleaning work during maintenance.

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Free comprehensive catalog with gasket selection table available!

Attention those looking for gaskets! We are currently offering a comprehensive catalog with a 'Gasket Selection Chart' for free!

This is a comprehensive catalog featuring our original gaskets, which have a proven track record in addressing leakage issues with steam and existing gaskets, as well as various shapes and materials of gaskets. It includes a gasket selection table and recommended part numbers, which can serve as a reference during selection! Additionally, we also offer separate calculations for tightening pressure considering bolt strength. 【Included Content (Partial)】 ■ Gasket selection criteria and recommended part numbers ■ High-density expanded graphite gasket for steam: 8851ND ■ Super high-pressure SUS multi-layer expanded graphite gasket for steam: 1500 ■ High-sealing capability cam profile gasket ■ General-purpose expanded graphite gasket ■ Other general-purpose gaskets and more *For details, please download the PDF document or feel free to contact us.

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"Metal Reinforced MacFoil (Expanded Black Lead) Sheet Gasket" Series

Excellent heat resistance and long-term sealing performance! For head gaskets in automobiles and other industrial gaskets.

"MacFoil (expanded black lead)" has excellent heat resistance, very low stress relaxation, and can maintain sealing performance over a long period. By combining with metal, its handling properties are improved, and it is widely used as head gaskets and oil pans for automobiles and motorcycles, as well as other industrial gaskets. The lineup includes: - A type reinforced with metal foil and treated with a special adhesive process using MacFoil (expanded black lead) - A type that has been processed with a raised pattern on SPCC foil and mechanically bonded with MacFoil. 【Features】 ■ Excellent heat resistance, thermal conductivity, and chemical resistance ■ High compressibility and easy to conform ■ Minimal seizure at high temperatures ■ Punching possible in Thomson type *For more details, please refer to the PDF document or feel free to contact us.

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Comprehensive Catalog of Gaskets for Heat Exchangers with Gasket Selection Table!

Are you having trouble with leaks from your heat exchanger recently? We are committed to addressing leaks with our extensive experience!

The "HEAT EXCHANGER・VESSEL SEALS" is a comprehensive catalog for heat exchangers. Are you experiencing leaks from gaskets in old heat exchangers that are 10, 20, or even more years old? Many existing designs use spiral gaskets or metal jacket gaskets, but leaks from the gasket area have been increasing in recent years. Based on our extensive track record, we propose gaskets tailored to your equipment! We introduce products such as "2711・2715 DryFlex・2717," which excel in gas sealing, as well as "8851ND CleaLock" and "1500 HOCHDRUCK-Pro." [Contents] ■ Proposals for sealing solutions in heat exchangers ■ 2711・2715・2717 ■ Part numbers, materials, and shape symbols ■ CleaLock 8851ND・1500・MacGuard (grommet options) ■ MetaLock 2660・2670・2730 Kamflex, etc. *For more details, please refer to the PDF document or feel free to contact us.

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High-pressure steam gasket "1500 HOCHDRUCK-Pro"

"Free sample available" Gaskets that meet the standards of excellent heat resistance, chemical resistance, and pressure resistance in accordance with air pollution prevention guidelines.

The "1500 HOCHDRUCK-Pro" is a high-performance gasket that meets the air pollution prevention guidelines "TA-LUFT" in Germany, a leading country in environmental protection. Thanks to its multilayer reinforced structure, it can be used in areas where semi-metallic or metallic gaskets are typically employed. Additionally, it can serve as an alternative to spiral gaskets in urgent situations and is suitable for a wide range of applications, including steam union gaskets. 【Features】 ■ Excellent heat resistance, chemical resistance, and pressure resistance ■ Minimal stress relaxation (reduction in surface pressure) ■ Superior sealing performance ■ Excellent handling properties ■ Outstanding emergency response capability "Free Sample Offer" Please feel free to contact us for your request. If you provide specific testing conditions, we will consider samples tailored to those dimensions, so please get in touch. 【Testing Conditions Examples】 ■ Temperature ■ Pressure ■ Fluid ■ Equipment used ■ Dimensions (thickness, outer diameter, inner diameter, etc.) ■ Estimated annual demand ■ Others *For more details, please refer to the PDF document or feel free to contact us.

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Gasket "2711・2715 DryFlex(R)・2717"

It can demonstrate excellent sealing performance even under low tightening surface pressure.

The cam profile gasket is a gasket that uses a sealing layer on the surface of a gasket core processed into a special tooth shape. It has excellent pressure resistance (43.1 MPa) and heat resistance. 【Features】 ■ Can solve insulation issues at high temperatures ■ Usable with fluids that are prone to polymerization reactions ■ Usable in locations where issues due to vibration occur *For more details, please download the PDF or feel free to contact us.

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Grommet option "MacGuard"

Shut out infiltration and leakage! Improved heat resistance with grommet processing.

"MacGuard" is the name of an option that applies crimping processing of SUS316L or Hastelloy to the inner and outer diameters of gaskets. By adding MacGuard as an option for gaskets, it is possible to significantly improve sealing performance, contamination prevention, pressure resistance, heat resistance, and more. 【Features】 ■ Shuts out permeation leakage ■ Improved heat resistance ■ Blocks the occurrence of contamination ■ Protects the gasket from fluids ■ Significantly suppresses cold flow of fluorine-based gaskets ■ Prevents gasket adhesion ■ Greatly improves the handling of gaskets *For more details, please refer to the PDF document or feel free to contact us.

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Product catalog for the "Metal Reinforced MacFoil (Expanded Black Lead) Sheet Gasket" series.

Product catalog for the "Metal Reinforced MacFoil (Expanded Black Lead) Sheet Gasket" series.

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Comprehensive Catalog for Heat Exchangers with Gasket Selection Table!

Comprehensive Catalog for Heat Exchangers with Gasket Selection Table!

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Comprehensive Catalog of Seals for Pumps and Shafts with Packing Performance List

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Comprehensive Catalog with Gasket Selection Table

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Steam Gasket Catalog

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Developed an innovative traceability system that records everything from waste to recycled resources.

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We developed a system that expands the functions of the electronic manifest ASP "KENET" to record the traceability from waste to the creation of recycled resources using blockchain technology. In May 2025, as a pre-service, we implemented registration functions from waste registration to the input of the recycling process and the completion of recycled resources. In January 2026, we newly developed functions for inventory management and shipping of recycled materials. The system also includes a CFP registration function for recycled resources, allowing for data input on the decarbonization effects of resource circulation. We aim to utilize the waste management functions cultivated over 18 years with KENET to advance into the field of resource circulation and work towards the effective use of waste for a circular society.

Jan 13, 2026

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PFAS Regulation Countermeasures! ■■ Leak Test Equipment for Small Electronic Components|MSA-0101 series ■■ Does not use fluorinated inert fluids. PFAS-free. Offers accuracy equal to or better than liquid immersion testing.

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● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!

Jan 13, 2026

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"Welding repair crack repair" We will repair metal cracks without applying heat.

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The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If you require a detailed technical explanation, please contact us.

Jan 13, 2026

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Amada × Automation Subsidy: Search for Amada products eligible for subsidies now.

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The catalog subsidy is a grant system aimed at improving productivity and added value for small and medium-sized enterprises by selecting and implementing general-purpose labor-saving products such as IoT and robots from a pre-registered "product catalog." This initiative also aims to lead to wage increases. Features of the catalog subsidy: - Ability to choose general-purpose products from the catalog - Subsidy of up to 15 million yen - Support for applications from sales businesses - Ongoing public recruitment [Search for products that can be introduced with the catalog subsidy now] https://amada.shoryokuka-catalog.zeroplus-consul.co.jp/ *For more details, please refer to the related links or feel free to contact us.

Jan 10, 2026

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Promisel Inc. announced at the JP Morgan 2026 Healthcare Conference.

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Miami, Florida, January 10, 2026 - (JCN Newswire) - Promiscel, a clinical-stage cell immunotherapy company uniquely positioned in the development of potentially curative cell therapies for cancer patients, announced today that Dr. John Lee, our Chief Medical Officer, will present interim results of our lead asset, PRO CAR - 201A (a CAR T cell therapy targeting STEAP1). This therapy is currently being conducted as the first human Phase 1 clinical trial aimed at treating metastatic castration-resistant prostate cancer (mCRPC). The presentation will take place on January 12, 2025 (Monday) at 11:15 AM Pacific Standard Time at the Franciscan D (Ballroom Level) during the "Biotech Showcase 2026" in San Francisco, California.

Jan 10, 2026

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  • RS 年度末セール 年に1度のスペシャル企画! 期間限定 最大60%OFF 期間:2026 1/5(月)~3/27(金)18:00まで
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