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Juntas Industriales y Navales, S.L. is a company created in 1972 in Gijón, Asturias (Spain). We specialize in the manufacture of all types of “custom made” gaskets and seals to meet customer’s requirements.


According to the European Sealing Association (ESA), “The primary purpose of a seal is to contain a fluid and so protect the immediate environment form contamination (and vice versa), which may vary in significance from innocuous fluid loss (such a steam, water, etc) up to nauseous, toxic or hazardous fluid loss. In the former case, the loss of such innocuous fluid will lead primarily to lack of plant efficiency for the operator, although such leakages may still present hazards (such as leakages of high pressure water or steam). Clearly, in the latter case it is not only financially inefficient but also environmentally dangerous; for employees, members of the public and for nature at large! Consequently, the correct selection and use of the appropriate sealing technology for the application is just part of the environmental responsibility of the plant operator”.

Our range of products includes:

  • Soft gaskets of compressed fibreboard, plastic and rubber in large and small batches
  • Graphite gaskets with stainless steel insertion
  • All types of plastic machined pieces (PE, PTFE, PA6, PP, ABS...)
  • Vulcanized pieces
  • Rubber profiles
  • Fenders for boats and docks
  • Metal jacketed gaskets
  • Spiralwound gaskets
  • Textile expansion gaskets
  • Specific solutions for steam

We manufacture customized products and in agreement with the international norms (DIN, ASA, etc.)


To carry out our business we have a wide range of machinery, which include a cutting machine and a machining centre/CAD-assisted milling, a CNC lathe, punching hydraulic presses and hot dishes presses for vulcanizing.


For the manufacture of our products we use various raw materials such as:

  • Compressed fibreboard: Belpa CSA-90, Belpa CSA-50…
  • Compressed graphite: Belpagraf compact...
  • Plastics: PE, PTFE, PA6...
  • Natural rubber
  • Synthetic rubber: NBR, Neoprene®, Viton®…
  • Foam rubber
  • Metals: stainless steel, copper, brass…
  • Textile fibre, fibreglass, ceramic fibre, aramid...Other materials: cork-rubber, felt…


Given the nature of our products, our customers are companies whose activities are developed in the following sectors:

  • Energy Industry
  • Oil and Gas Industry
  • Steel
  • Naval
  • Cement
  • Chemical and pharmaceutical
  • Water treatment
  • Pumps, valves, boilers
  • Capital equipment
  • Engineering tools
  • Railway
  • Automotive