Dip Coating Procedure And Types And Benefit

Dip coating refers to the process of immersing the substrate n a tank that contains the said coating material, detaching the pieces from the tank and letting it to drain further. Later the coated material is dried (by force-drying or baking). This process is beneficial for making the thin-film coated pieces besides spin coating. Dip coating for PVC (Poly-Vinyl-Chloride) stands for many years now and can be understood in 3 simple steps.

Step 1- Immersing the substrate in the tank that contains the solution for coating spinning at constant speed (usually judder-free)

Step 2- the substrate is allowed to remain immersed in the tank letting the coating material to bind the substrate well. It is referred to as dwell time and solution lies motionless during this time of process.

Step 3- during this step, the substrate is again subject to constant speed just to avoid judders, it is believed that the faster you withdraw the substrate from solution, better and thicker is the coating applied.

Types of dip coating for Vinyl substrates:

Permanent an Removable coatings and masks
Protective and decorative coatings
Multi-layer sensor coatings
Hydro-gels
Self-gathered monolayers
Direct coatings
Sound dampening

 vinyl dip coating substrates is simple process. You can control the thickness of the coat applied by controlling the viscosity of coating. As dip tanks are available in different sizes, it is easy to accommodate the objects of different sizes and shapes.

While the process of coating is still on, it is really important to monitor for the thickness of film which may vary from top to bottom of the item immersed in solution. It is important to control the refluxing by solvent for that fine, smooth and uniform finish.