Understanding The Process Of Dip Coating
Dip coating is a process wherein a finished product is coated with a protective coating. The products are dip coated to prolong their useful life. Aside from making the products more durable, dip coating is also used to make the products look more decorative. Products that undergo this process are commonly found in the home and in the workplace.
Dip coating is commonly used in metal products that are coated with plastic. The perfect example of a product that has undergone this process is the wire clothes hanger that you commonly see in clothing stores and inside the home. The metal of the hanger if left bare can easily get rusty and the rust can transfer to the clothes and ruin the cloth. To prevent this from happening, the metal frame of the hanger is coated with plastic. A thin or thick coating of plastic will protect the metal part of the hanger from being exposed to air and moisture which are the main causes of corrosion or rusting. The plastic coating of the hanger will also protect the clothes from discoloration or staining from being in contact with the metal.
Dip coating is a very simple process that can be done in three simple steps. The first step is cleaning the object very thoroughly. When the object is thoroughly clean it is pre heated and submerged in a container that is filled with plastic. Dip coating is more effective than any other process of coating the object because it ensures an even coat all over the surface of the object. It makes sure that the entire object is evenly coated with the plastic.
The next step in dip coating is the dwell time or the length of time that the object should be immersed in the plastic. The length of the dwell time will depend on how the object is constructed as well as the kind of plastic that is used in the dip coating process. The dwell time can take a few seconds to a few minutes depending on the factors mentioned.
The last step in the process of medical moulding is the withdrawal cycle which is the removal of the object that was immersed in the plastic. It is important to carefully remove the object from the container of hot plastic. There should be constant motion while the object is being removed because it prevents the formation of judders on the surface of the object. This ensures that the plastic coating is smooth. The speed at which the object is removed from the plastic determines the thickness of the plastic coating.
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