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1. PU paste properties:
A.It is more environmentally friendly compared to traditional organic solvent-based silicone. It uses water as a solvent, reducing the emission of volatile organic compounds, in line with modern environmental standards.
B.It has good wettability and can effectively adhere to the surface of various substrates, including glass, metal, plastic, etc., so as to achieve good printing results.
C.The viscosity of it can be adjusted by adding different types of additives to meet the needs of different screen printing processes. This flexibility makes it suitable for a variety of different printing applications.
D.It has good durability, and the printing pattern can remain stable under different environmental conditions, such as abrasion resistance, water resistance and chemical resistance.
E.It can provide clear and detailed printing patterns, as well as good coverage and gloss, making the printed materials have a high-quality appearance.
2.Usage:
A.According to the printing material, printing equipment and printing requirements, choose the suitable brand and model of water-based silicone.
B.Dilute the PU paste to the appropriate concentration according to the manufacturer's recommendations and mix it with the appropriate amount of additives to adjust the viscosity and fluidity.
C.Before screen printing, make sure the printing machine is clean and adjust the proper parameters, such as frame tension, printing speed, etc.
D. Apply the prepared it coating evenly on the screen, then place the screen in the printing position and print by mechanical or manual means.
E.After the printing is completed, place the print in a well-ventilated area and let it coating dry naturally or cure by drying equipment to ensure the quality and durability of the print.
F.After printing, clean the printing equipment and tools in a timely manner to avoid the residue of PU paste clogging the equipment or affecting the quality of the next printing.
