To quickly achieve the thick plate effect of silk screen silicone, you can follow the following steps:
1. Material preparation
Choose silk screen silicone: Choose silk screen silicone with high transparency, heat resistance and aging resistance to ensure the quality of the material.
Mix silicone: Mix silicone oil and curing agent in a certain proportion, usually correct ratio of the curing agent, and add an appropriate amount of diluent as needed, and stir well.
2. Primer printing
First primer: Prime once with thick plate silicone, heat to 120~160 degrees, and bake until the surface is dry.
Color printing: Mix another portion of primer silicone, add the required color and stir well, and then print it on the cloth or other substrate with a screen. The squeegee should be scraped lightly to ensure that the silicone is evenly distributed.
Heating and drying: Heat and dry the substrate printed with silicone for the next step.
3. Color matching and repeated printing
Second color matching printing: Repeat the steps of color matching printing, perform the second color matching printing, and heat and dry again. This step can deepen the color and increase the thickness of the silicone.
4. Cover printing
Mix cover silicone: Mix a portion of colorless cover silicone, add correct ratio curing agent, and stir well.
First cover: Print the cover silicone on the substrate that has been color-matched and printed to ensure that the silicone is evenly covered.
Repeat cover: Perform a second cover printing to further increase the thickness and brightness of the silicone.
Heating and curing: Heat the substrate printed with cover silicone until it is completely cured to form a thick plate glossy effect.
5. Precautions
Choose a suitable screen: The number of meshes of the screen should be selected according to actual printing needs, usually around 80~120 meshes.
Scraping skills: The force should be moderate when scraping the screen to ensure that the silicone is evenly distributed and will not scratch the screen.
Baking temperature and time: The baking temperature and time should be strictly controlled to avoid over-curing or incomplete curing of the silicone.
Through the above steps, the thick plate effect of screen printing silicone can be quickly obtained. At the same time, in actual operation, it is also necessary to pay attention to factors such as material selection, mixing ratio, printing skills and baking conditions to ensure printing quality.