Iljin Raytech Co., Ltd. was established in 1981 and specializes in producing heat-shrinkable casings and auxiliary materials for the joints of pre-insulated pipes used in district heating. By applying the technology of multinational corporations and receiving recognition for product excellence through tests by domestic and international accredited institutions, the company aims to leap forward as a global enterprise through creative innovation and challenges.

"Iljin Raytech will strive to become a world-leading company through creative innovation and challenges. We will not rest on our laurels as the number one company in Korea, but will strengthen our global business, which is our future growth engine, to leap forward as a world-class enterprise. Furthermore, we will do our best to create corporate value that earns the respect of customers and society. Since its establishment in July 1981, our company has been producing heat-shrinkable casings and auxiliary materials, which are connection materials for district heating, by applying the technology of multinational corporations. Since 1995, our products have been applied to all domestic sites, including the Korea District Heating Corporation, and their excellence has been recognized through tests by overseas research institutes such as Germany's FFI and Sweden's SP Research Institute. Our company also supplies products to domestic district heating, power generation, and industrial plant sites, and is continuously developing technology, including product development through cooperation with the Small and Medium Business Administration."

Business Areas

• Manufacturing and Supply of District Heating Connection Materials: We produce heat-shrinkable casings and auxiliary materials, which are sealing materials for the joints of pre-insulated pipes for district heating, and supply them to domestic and international sites.
• Wholesale and Import/Export of Electrical Equipment: We engage in the wholesale of electrical machinery, equipment, and related materials, and also conduct import/export brokerage for related products.
• Corrosion Prevention and Leak Detection Systems: We supply heat tracing systems, corrosion prevention systems, and leak detection systems (for water and oil) to industrial and construction markets, providing technical support, design, and construction.

Products

• RAYJOINT Heat-Shrinkable Casing: A heat-shrinkable casing for high-performance sealing protection of pre-insulated pipes.
• COVALENCE DUALSEAL Protective Heat-Shrinkable: A heat-shrinkable sleeve for additional sealing protection of casings and pre-insulated pipes.
• Accessories (Air plug, Welded closure plug, etc.): We produce accessories such as air plugs, foam hole welded closure plugs, and insulation finishing materials used with heat-shrinkable casings.

Special Notes

• Technological Prowess and Quality Excellence: The excellence of our products has been recognized through the application of multinational corporate technology and tests by international accredited institutions such as Germany's FFI and Sweden's SP Research Institute.
• Continuous Technology Development and Patent Holdings: We hold numerous patents, including those for partial heating systems and heat-shrinkable tubes using heat-shrinkable sheets, developed through collaborative projects with the Small and Medium Business Administration.
• Reliability and Awards: Our reliability has been externally recognized through awards such as Lotte Engineering & Construction Excellent Partner (2012), GS Power Excellent Partner (2017), and the Industrial Service Medal at the National Productivity Awards (2018).

💡 A Word from JobPloy
Iljin Raytech Co., Ltd. is a specialized small and medium-sized enterprise that manufactures special plastic products for district heating. There may be roles primarily related to production, quality control, technology development, sales, and import/export. If you are a foreign worker interested in acquiring skills in this field, it could be a good opportunity. Since precise work and quality control are important, it is necessary to approach tasks with meticulousness and responsibility.