Dip moulding is an age-old process-popular in many countries catering to diverse industries. Beauty of the process is that a part can be moulded in a very short time like an hour to three days. In this moulding process, a male shaped mandrel is preheated and dipped in to liquid PVC called plastisol and the mandrel is withdrawn after accumulating required thickness. Subsequently the mandrel with a layer of semi cured PVC is sent for curing or gelation. Constraints of the process are varying thickness that is rendered by flow of the plastisol. Moulded parts are extremely glossy, flexible, and seamless.
Apart from moulding the PVC plastisol can be used for coating metal and glass parts for insulation, comfort, masking, and safety purposes. Plastisol dip moulding is mainly used for moulding of caps, covers, shrouds, wiring harness terminal insulations, gift items and so on for diverse industrial sectors but mainly to automobile and electrical industries. The Indian industries are working towards better safety practices and using wide range of flexible PVC products within the plant and while transporting end products to users. Protection/ packing caps and bus bar/ control panel shrouds are some examples in this category. For power management sector, we have a wide range of products made with plastisol dip moulding. They are Bus bar joint shrouds, Control panel and VCB shrouds, Transformer bushing covers, Pole Pin insulator bird guards and many other. All these shrouds are for voltages of up to 36 kV.
We have come across this process during our visit to South Korea for finding a new project that can give good employment and service to Indian Industries. We got the technology from a leading South Korean dip moulder in the year 1997. Since then, we have learned to develop and provide various dip moulded parts using this technology. And these 26 years of journey had ensured experience and expertise to us that in turn made us the largest and best dip moulder in Asia. Today we have more than 5000 moulded parts ranging from 0.6 gm to 10 kg and length ranging between 5mm to 1000mm. Thickness can vary from 0.5 mm to 10 mm and hardness 35 to 85 shore A. The parts can be UV stabilised for durability and outdoor applications.
We have many machines designed to produce various parts and our in-house formulation and testing facility is well equipped to develop proprietary formulations as per product and customer requirements. Our design and development wing are strong and well experienced to develop tooling and parts in short times. We always ensure spare capacity to meet emergency requirements of customers spread all over the world. At Vindip we mould your imagination…
B. J. JAWAHAR is one of the pioneers in Dip Moulding
