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This section provides an overview for shielding sheet as well as their applications and principles. Also, please take a look at the list of 11 shielding sheet manufacturers and their company rankings. Here are the top-ranked shielding sheet companies as of January, 2025: 1.U.S. Industrial Tool Company, 2.Shandong Roc Tarp New Material Technology Co., Ltd, 3.TOYOCHEM CO., LTD..
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1975~1995: Worked at Hitachi, Ltd.
Engaged in research on the irradiation effects of nuclear reactor materials at the Energy Research Institute.
Received the Japan-American Atomic Energy Society Award for his research achievements.
1996~2015,
Engaged in soft error research caused by environmental neutron beams in semiconductor devices at the Institute of Industrial Science.
Research achievements: Awarded the IEEE Fellow and the Teiichi Yamazaki Award.
Currently active as a writer.
A tarpaulin is a sheet made of special materials designed to shield against heat, electromagnetic waves, radiation, and other potentially harmful effects on living organisms and electronic devices.
Tarpaulin shielding effectiveness increases with thickness, providing enhanced protection against adverse effects. Tarpaulins can offer high levels of effectiveness when chosen appropriately for specific applications, as the materials used exhibit varying characteristics, including workability.
Additionally, films and sealed products are manufactured to conform to the shape of the object requiring shielding.
Tarpaulins are primarily employed to block external radiation and are commonly used in the following scenarios:
Radiation tarpaulins serve the purpose of shielding against external radiation. These shielding sheets are utilized in protective clothing and equipment to safeguard workers from radiation exposure, particularly in environments involving the handling of radioactive materials. Examples include the disposal of radioactive waste at nuclear facilities and reconstruction work in areas affected by nuclear power plant accidents.
Medical facilities dealing with radiation may also use them to shield against X-rays and gamma rays generated by particle beams such as electrons, neutrons, and protons, which are employed in radiation therapy to treat tumors.
Electromagnetic wave tarpaulins are used to mitigate the effects of electromagnetic waves originating from sources like broadcasting stations, smartphone base stations, and electronic devices such as smartphones and tablets. These waves have the potential to negatively impact human health and disrupt electronic equipment. Tarpaulins are employed to attenuate the effects of such electromagnetic waves effectively.
The principles behind tarpaulins are rooted in the properties of specialized materials capable of shielding against radiation. The characteristics of tarpaulins can vary significantly based on the materials utilized.
Radiation shielding sheets are crafted from materials like lead or tungsten to achieve exceptional shielding effectiveness. However, they tend to be heavy and less manageable. When using such materials, consideration must be given to their appearance, particularly when bending or joining them to suit specific applications.
Tarpaulins composed of rubber or resin are designed to enhance shielding effectiveness by dispersing materials that can shield or absorb radiation within the sheet.
In electromagnetic shielding, conductive materials like copper are employed to surround radio waves. These materials reflect and scatter the waves on their surfaces, preventing their penetration or leakage. Magnetic shielding employs iron-based materials that can be magnetized to enclose and redirect magnetic fields, thus preventing their ingress. The demand for magnetic shielding has increased, especially for electronic devices like MRIs, which are susceptible to magnetic interference.
The selection of the appropriate tarpaulin should align with the type and energy level of the radiation source.
Alpha Rays
Alpha rays consist of helium ions composed of two protons and two neutrons. They are typically emitted from the nucleus of a radioactive isotope through a process known as alpha decay. Due to their low energy (less than 10 MeV), alpha rays have limited penetrating power and can be effectively blocked by materials as simple as a sheet of paper, rendering tarpaulins unnecessary for this purpose.
Beta Rays
Beta rays are emitted through beta decay from the nucleus of a radioactive isotope. They pose no health risks and do not cause electronic equipment malfunctions, thus obviating the need for tarpaulins.
Gamma Rays
Gamma rays, originating from the nucleus of radioactive isotopes, consist of photons. They possess high penetrating power and, while they do not directly induce electronic equipment failures, they can cause material degradation and pose significant health hazards. Effective shielding against gamma rays often requires the use of materials such as lead or tungsten, with thicknesses tailored to the specific gamma ray energy.
For lower-energy gamma rays, tungsten alloys, mainly comprising tungsten, are commonly used for tarpaulins due to their lower environmental impact. However, these materials can be inflexible, challenging to work with, and relatively expensive due to the high-temperature sintering process. To address these issues, a new type of tungsten sheet made of tungsten powder and recyclable elastomer resin has been developed. This composite material results in a flexible, high-density tungsten sheet with improved workability.
X-Rays
X-rays are essentially the same as gamma rays but are artificially produced using devices like X-ray tubes. They are primarily used for medical and industrial X-ray examinations and generally have lower energy levels (a few keV) compared to gamma rays. They do not pose health risks and do not interfere with electronic equipment, making tarpaulins unnecessary. White barium sulfate is sometimes used during upper gastrointestinal tract X-rays to enhance X-ray attenuation and improve radiographic resolution.
Neutron Radiation
Low-dose, high-energy neutron beams exist naturally, with a rate of approximately 12 neutrons per square centimeter per hour. Although they are not harmful to humans, they can disrupt electronic equipment. Shielding high-energy gamma and neutron rays typically requires materials like lead and concrete walls several meters thick. Weaker, low-energy neutrons are shielded using hydrogen-rich materials like paraffin, polyethylene, and water, often supplemented with B-10, a substance containing boron. Environmental considerations are crucial, as gadolinium and cadmium are toxic materials commonly used for neutron shielding.
For medical applications involving tumor treatment with neutron beams, high-energy electron beams, or proton beams, gamma and neutron radiation are also generated. As a result, shielding materials are necessary around the irradiation equipment.
Tarpaulin shielding sheets are typically composed of thin PET (polyethylene terephthalate) film with a conductive shielding layer, such as copper, applied through vacuum deposition on the surface. These sheets provide excellent electromagnetic shielding properties while remaining lightweight, flexible, and breathable. The porous structure of the film enhances its anchoring effect.
Utilizing its high shielding performance and thin film characteristics, this type of sheet is employed for electromagnetic shielding in various electronic devices, including space-saving mobile devices and cable sheathing materials requiring curvature processing.
Tarpaulins are also available in flexible paper and film forms made from stainless steel and copper materials using paper-making technology. These sheets can be easily cut into desired shapes using scissors or cutters. During processing, sintered metallic fibers prevent fiber shedding, and attention is paid to their impact on the working environment.
This type of tarpaulin sheet combines the advantages of metal conductivity, paper-like cushioning and flexibility, and the anchoring effect and air permeability offered by its porous structure. Based on these qualities, it is used as noise suppression material in various electronic devices and as an electromagnetic wave shielding filter for pressure reduction in differential applications.
*Including some distributors, etc.
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U.S. Industrial Tool Company is a manufacturer and supplier of stationary hot and cold dimpling machines. Established in 1959, the company is headquartered in Gardena, California, USA. The company's main activities encompass designing, manufacturing, and distributing made-to-order tools such as riveting, riveting tool kits, sheet metal, air, and airframes as well as power plant tools and other miscleneous tools and parts. Its product offerings include carbide end mills, drills, and reamers, serving industries such as aerospace, automotive, and medical. U.S. Industrial Tool Company offers services like tool resharpening, technical support, tool Repair, tool design and material testing.
HOZAN TOOL INDUSTRIAL CO., LTD., established in 1946 in Naniwa-ku, Osaka, Japan, is a manufacturer and supplier of electronics and bicycle tools. Their product range includes soldering irons for electronics assembly, various types of multimeters for electrical measurements, pliers for wire manipulation, diverse screwdrivers for fastening tasks, and wire strippers for precise wire preparation. Additionally, they also offer chemical products such as anti-rust oils, freezer sprays, cutting oil, and dusters.
Toyo Chem founded in 2011 is a leading manufacturer and supplier of polymers and coatings based in Tokyo, Japan. The company specializes in the production and distribution of polymer and coating-related products for various industries. While delivering new value and being close to customer needs, Toyo Chem offers innovative solutions tailored to meet industry requirements. Led by President Toshinori Machida, the company operates with a capital of 500 million yen and has a dedicated team of 566 employees.
Dandelion, established in 1993 and based in Yangzhou, China, is a manufacturer that provides tarpaulin finished product solutions. Its business scope includes various sectors such as home improvement, infrastructure projects, outdoor weather protection, logistics services, and garden & lawn applications. The company offers vinyl truck tarpaulins, clear tarps, mesh tarps, poly tarps, canvas tarps, and more. Its manufacturing equipment supports heat-welded seams, high-frequency welded seams, and various logo printing options. The company also handles documentation, including trade matters, clearance, and logistics. All of the products are made from RoHS-certified tarpaulin fabric.
Narmada Polyfab was established in 1993 and is based in Ahmedabad, Gujarat as a manufacturer and exporter of HDPE tarpaulin and tarpaulin sheets. The company’s product portfolio includes bike cover tarpaulin, tent tarpaulin, truck tarpaulin, agricultural tarpaulin, utility cover, water proof tarpaulin, PVC tarpaulin, HDPE woven fabric, HDPE laminated fabric, and HDPE laminated tarpaulin. The products are essential for various industrial and agricultural packaging applications, ensuring quality, reliability, and efficiency. The products are used in sectors such as FMCG, oil and gas, mining, marine, aerospace, and defense.
Shandong Roc Tarp New Material Technology Co., Ltd, established in 2021 in China, is a manufacturer focusing on producing quality PE tarpaulins for various industries. Our main products include heavy-duty poly tarps, waterproof tarps, HDPE tarps, and more with different colors, weights, and thicknesses. They are used in agricultural, construction, and transportation covers.
FoShan LiTong FanPeng Co., LTD, established in 2010 and situated in Nanhai District, Foshan, Guangdong, China, is a manufacturer specializing in heavy-duty PVC coated tarpaulin products. The extensive product range features PVC tarpaulins, flood barriers crucial for flood control, sound barriers with noise reduction applications, industrial curtains, and PCA hoses. The company maintains a substantial inventory of raw materials and tarpaulin rolls and operates 120 production lines running 24/7, with the capability to provide a continuous output of 60,000 square meters of tarpaulin daily. Its products are exported worldwide, including to countries such as Kuwait, Thailand, the UK, the USA, and Chile.
Karnawat Canvas Company, founded in 1983 and based in Chennai, India, is a manufacturer offering a wide range of tarpaulin products. Its diverse offerings include tarpaulin sheets designed for domestic, commercial, and industrial applications, outdoor tents suitable for various outdoor activities, and shamiyana tents commonly used for weddings, parties, and seminars. The compay also provides vehicle covers to protect automobiles from environmental factors, and shade nets that offer shade and protection in nurseries and greenhouses. A quality inspection unit to ensure the quality of its products prior to final delivery is maintained.
Qingdao SG Global Packaging Co.,Ltd was established in 1993 and is based in Qingdao, China as a manufacturer and exporter of polypropylene and polyethylene outer packing goods. The company’s product portfolio includes woven fabrics and bags, weed mat, silt fence, bulk bags, tarps, mesh bags, and more. The products are essential for agricultural and industrial packaging, ensuring quality, reliability, and efficiency. As for quality, it use quality raw materials and have a stringent quality control system that checks all items at least three times before loading. It guarantees consistent manufacturing, on-time delivery, skilled staff, and superior product quality.
Commercial Syn Bags Limited, founded in 1992, based in Indore, Madhya Pradesh, India, is a manufacturer and exporter of FIBC bulk bags, tarpaulin, PP fabric, woven bags, and other packaging products. The company offers various products such as FIBC bags, BOPP bags, builder bags, depot bags, and food grade FIBC bags. Its long-term success requires a total promise to excellent standards of productivity and quality, to working together efficiently & effectively. It believes in Ethical corporate behavior towards everyone the company work with, the communities it touches, and the environment on which we have an impact.
Jiaxing Juming Advance Cover Co., Ltd, founded in 2016, based in Jiaxing, Zhejiang, China, is a manufacturer and supplier of tarpaulin and cover products. The company offers various products such as PVC coated tarpaulin, PVC mesh tarp, PVC clear vinyl, lumber tarp, and PVC clear curtain. It has invested 2 million RMB to purchase and improve various welding and sewing equipment, combined with scientific and efficient production steps, to provide customers with quality PVC tarpaulin solutions in construction, trucks, cargo freight, and outdoor.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | U.S. Industrial Tool Company |
25.0%
|
| 2 | Shandong Roc Tarp New Material Technology Co., Ltd |
25.0%
|
| 3 | TOYOCHEM CO., LTD. |
25.0%
|
| 4 | HOZAN TOOL INDUSTRIAL CO., LTD. |
25.0%
|
Derivation Method
The ranking is calculated based on the click share within the shielding sheet page as of January 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
5 | 45.5% |
|
India
|
3 | 27.3% |
|
Japan
|
2 | 18.2% |
|
United States of America
|
1 | 9.1% |
33 products found
33 products
Riken Corporation
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Our uniquely developed magnetic filler solves the near-field electromagnetic noise problem. Because it is thin, it is effective for electronic devi...
Medical Ings Co., Ltd.
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Shimonishi Giken Co., Ltd.
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Very Fast Response
■Features ・High specific gravity sheet made by highly filling thermoplastic elastomer with tungsten powder. ・Excellent ability to shield X-rays a...
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Kyuden Techno Systems Co., Ltd.
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Yagyu Shokai Co., Ltd.
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J Works Planning Co., Ltd.
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Blue sheet (No. 1000/No. 3000) ■Features ・Light and reasonable number 1000 ・Thick and durable 3000
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■ Characteristics ・ Noise measures can be used simply by applying it to the source of noise. ・ It is effective in suppressing noise of high frequ...
4 models listed
Yuhara Co., Ltd.
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Yuhara Co., Ltd.
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NC Automation Co., Ltd.
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5.0 Company Review
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Yoshikawa Shoko Co., Ltd.
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Yoshikawa Shoko Co., Ltd.
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