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PDT Co., Ltd
  • Business Area
  • Yard Sealing Application

    • A Growing Company with Customers

    Through differentiated technology and excellent services,
    we will be a best company that develops with our customers by contributing to create customer value.

    Business Area

    Yard Sealing Application

    LF was founded in 1994 and currently employs over 600 people.
    LF offers a fully integrated in-house process encompassing design, fabrication, and construction. Its competitive edge lies in advanced engineering for space frame structures.

    Over the past 20 years, LF has earned global recognition for its expertise in dome and free-form structural systems, all designed to meet sustainable building standards.

    Guided by a philosophy of “uncompromising quality,” LF has expanded to global markets, building lasting relationships with clients worldwide.

    LF serves clients across Korea, Malaysia, Thailand, the Philippines, the UAE, Jordan, Africa, and beyond.
    200m Long Span
    LF’s space frame structures are built to span up to 200 meters without internal columns, maximizing usable space inside the building.

    We have a proven track record of delivering 1,000-meter-long storage facilities for coal, iron ore, and limestone, as well as ultra-large-scale public infrastructure.
    Long-Life More than 50years
    Steel is the most common material for wide-span construction, but corrosion control remains a major challenge. Painted steel structures deteriorate over time, while stainless steel and aluminum are cost-prohibitive.

    LF’s space frames are hot-dip galvanized, offering long-term corrosion resistance with virtually no maintenance. All components are custom-fabricated in the factory, securely container-packed, and delivered to site without deformation. Enables fast on-site assembly of 300 to 500 m² per day.

    Exterior panels feature a special coating that requires no maintenance for over 15 years, improving overall cost-efficiency. The entire structure is engineered for easy maintenance and a lifespan exceeding 50 years.
    Make easy or easier Facilitated
    LF space frame structures use a puzzle-type bolted joint system,

    enabling fast, safe, and straightforward installation on site. All bolted and welded ball-joint components are fully prefabricated in the factory to meet client-specific structural requirements, standardized as single units for site delivery. Following training by LF’s skilled engineers, local workers without specialized skills can perform installation without the need for special tools, heavy equipment, or advanced techniques.

    Installation can also be carried out at raw material yards of integrated steelworks and thermal power plants—even while existing facilities are in operation.
    • POSCO Raw Material Yard Sealing Project
      좌우 스크롤
      Surface Treatment Specifications Hot-dip galvanizing
      Corrosion protection Cathodic & barrier
      Edge and corner protection Uniform coverage including corners, edges, and threads
      Coating thickness 1.7 to 3.4 mils
      Bond Strength 3,600psi
      Material hardness Alloy layer harder than base steel (DPN 179–250)
      Operating temperature -100 C to 200 C
      Paint ability Can be painted
      Application Factory shop
      Production environment Weather-independent manufacturing
      Final treatment Chemically cleaned, dipped in molten zinc, and rotated to remove excess coating
      Guaranteed service life (maintenance cycle) Over 50 years
      Suitability Suitable for all-weather indoor/outdoor construction

      Similar engineering experience of LF