Manufacture & Supply
Rubber and Plastic parts
Complete range of rubber, silicone and plastic products
About K-Son
Rubber & Plastics Parts
K-Son Industries (M) Sdn Bhd. is a plastic injection moulding company in Johor Bahru manufactures precision rubber components.
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Rubber Moulding

Utilising compression, transfer and injection moulding methods, our rubber moulding capability ranges from micro moulding to large gasket used in automotive industry. Our rubber production spans a wide range of materials – NBR, SBR, EPDM, Viton, Silicone, Natural Rubber, and other specialised rubber polymers – all available in various hardnesses. We produce a variety of parts which are bonded to metal base components. Rubber grades are available to meet environmental extremes or for food or dairy, and other specific applications.
  • Rubber Compression Moulding

    Compression moulding requires a carefully measured amount uncured rubber to be loaded into the bottom section of the preheated moulding tool. The two halves of the tool are brought together, forcing the rubber material to conform to the shape of the tool cavity. The material is compressed and heated over a pre-determined time, during which the material cures (or vulcanises) and solidifies into the desired shape. The two halves of the tool are then opened and the newly created rubber part is removed.

  • Transfer Moulding

    Transfer moulding involves a process where the rubber material is placed into a transfer pot, which fits tightly with a plunger plate. The material is then transferred through pressure and temperature from the transfer pot through sprues into the mould cavities. The advantages of transfer moulding include: ability to mould precision tolerances; less flash during the moulding process; ability to insert mould or over-mould metal, plastic, fabric, or rubber inserts; and increased tooling lifetime.

  • Rubber Injection Moulding

    Injection moulding involves a process where the rubber is introduced into the mould through an injection nozzle and then injected into each cavity through a runner system, gates, or transfer sprues. The injection process is semi-automated and requires the least amount of material handling of any of the three rubber moulding processes. The advantages of injection moulding include: tighter tolerances; ability to utilise faster cycle times; and semi-automation to reduce part costing.


Plastic Injection Moulding

We provide plastic manufacturing and custom injection molding, and consulting and engineering services to lower your costs and to streamline your operation.




  • Product Development and Prototyping

    We can produce handmade components in-house for demonstration and evaluation purposes.

  • High Volume Production Optimization

    We can develop custom process equipment to efficiently produce components and implement stock management and logistics systems to ensure delivery on time.

  • Low Volume Production

    Small part runs of prototype tooling for product testing purposes.

  • Product Assembly and Packaging

    Our components are assembled and packed exactly to customer requirements.



Our services include full mixing facilities on site for the compounding of various rubber formulations, including Nitrile(NBR), Natural(NR), SBR, EPDM, Viton, Silicone, Butyl and Neoprene.


We carry out compound testing and material development in our fully equipped laboratory giving customer confidence in quality assurance and control throughout all stages of manufacture and service.